Answer:
because the diving board is helping the diver jump and helping increase the force of the diver's jump, they work together to help the jumper have a jump.
1. What is the atomic mass of the new atom?
2. What is the atomic number of the new atom?
3. What is the symbol of the new atom?
4. What type of decay is demonstrated here?
1. The atomic mass of the new atom be 252. Option (d) is correct.
2. The atomic number of the new atom be 100. Option (j) is correct.
3. The symbol of the new atom be Fm. Option (e) is correct.
4. Beta decay is demonstrated here. Option (g) is correct.
What is Beta decay?A proton can change into a neutron or vice versa inside the radioactive sample's nucleus through a process known as beta decay. The radioactive sample's nucleus can approach the ideal neutron/proton ratio as closely as feasible through processes like beta decay and alpha decay.
The nucleus releases a beta particle during this process, which can either be an electron or a positron. Keep in mind that a proton can become a neutron or a neutron can become a proton. To follow the law of charge conservation, electron and positron are created. The weak contact that leads to beta-decay.
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A 0. 25-kilogram baseball is thrown upward with a speed of 30. Meters per second. Neglecting friction, the maximum height reached by the baseball is approximately.
Answer:46m
Explanation:
In this scenario a battery is used to supply chemical potential energy. The potential energy is transformed and produces kinetic energy. The battery causes a fan to spin and that kinetic energy can also be described as mechanical energy. Check out the values for each: 100 J potential energy results in 75 J of kinetic energy. What conclusion can be drawn from the energy transformation diagram?
Responses
A The chemical potential energy is transformed into 75J of kinetic energy and 25J of heat energy.The chemical potential energy is transformed into 75J of kinetic energy and 25J of heat energy.
B The energy transformation results in 25J of energy being lost.The energy transformation results in 25J of energy being lost.
C The 100J of chemical potential energy releases 25J as friction and 75J of mechanical energy. The 100J of chemical potential energy releases 25J as friction and 75J of mechanical energy.
D Not all of the chemical potential energy is converted; 25J remains as potential energy.
The conclusion that can be drawn from the energy transformation diagram is "the chemical potential energy is transformed into 75J of kinetic energy and 25J of heat energy".
option A is the correct answer.
What is the law of conservation of energy?
The law of conservation of energy states that energy can neither be created nor destroyed but can be converted from one form to another.
This implies that energy is always conserved as it be converted from one form of energy to another. Such as;
Potential energy to kinetic energyKinetic energy to potential energyChemical energy to electrical energyElectrical energy to chemical energyElectrical energy to heat energyElectrical energy to light energy, etcIn the given scenario such that 100 J of potential energy is transformed to produce kinetic energy and the battery causes a fan to spin using 75 J of kinetic energy converted from the 100 J of potential energy.
We can conclude the following based on the given scenario;
energy conversion takes placesenergy is conservedall the potential energy is converted into kinetic energythe remaining energy (25 J) is converted into other form of energythe possible form of energy of the 25 J is heatLearn more about energy conservation here: https://brainly.com/question/166559
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star formation occurs in the halo rather than the disk because there is more visible material in the halo. true false
Star formation occurs in the halo rather than the disk because there is more visible material in the halo this statement is false. The galaxy's disk, which is mostly made of gas, is where stars are formed.
What environment is star creation in?Formation of stars. Molecular clouds, which are relatively dense collections of interstellar gas and dust, are where stars are born. These areas are quite chilly (temperature about 10 to 20K, just above absolute zero). Gases become molecular at these temperatures, which means that atoms are bound together. As a result of the disk's abundance of gas and dust, vigorous star formation occurs there. The spiral arms of the galaxy are where stars develop.
What distinguishes our galaxy's halo and disk populations of stars?All the gas and the young stars are in the disk, but there are also some ancient stars. An aggressive core and elderly stars dominate the bulge. Globular clusters and extremely ancient stars can be found in the halo. An indication of how the Galaxy formed can be found in the cause of this division of star kinds.
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hat is the volume rate of flow of water from a 1.90- cmcm -diameter faucet if the pressure head is 10.0 mm ?
With a pressure head of 13.0 m and a 1.90 cm diameter tap, the volume rate of water flow is about. 3.97 × 10⁻³m³/s.
Given:
The faucet's diameter (d) is 1.90 cm (0.019 m).
Pressure head (h) = 13.0 m
The formula for the volume rate of flow (Q) through a pipe or faucet is given by:
Q = A × v
The radius of the faucet (r) is half of the diameter:
r = d / 2 = 0.019 / 2 = 0.0095 m
The cross-sectional area of the circular opening is given by:
A = π × r²
v = √(2 × g × h)
v = √(2 × 9.81 × 13.0)
v = √(254.46)
v = 15.95 m/s
Now, we have both A and v. Let's calculate the volume rate of flow (Q):
Q = A × v
Q = π × (0.0095)² × 15.95
Q = 3.97 × 10⁻³m³/s
With a pressure head of 13.0 m and a 1.90 cm diameter tap, the volume rate of flow of water is therefore about. 3.97 × 10⁻³m³/s.
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The complete question is:
What is the volume rate of flow of water from a 1.90- cm -diameter faucet if the pressure head is 10.0 mm?
what minimum volume must the slab have for a 42.0 kg woman to be able to stand on it without getting her feet wet?
0.525 m³ minimum volume must the slab have for a 42.0 kg woman to be able to stand on it without getting her feet wet.
How do you find the minimum volume?Add the biggest possible inaccuracy to each metric, then multiply to get the biggest volume you can. Subtract the largest potential mistake of each measurement, then multiply, to determine the smallest volume that can be produced.
Briefing:1000 kg/m³ = density of water
920 kg/m³ = density of ice
BF = Woman Weight + Slab Weight
Pvg = 42 + Pvg
V = 42 kg / (1000 - 920)
V = 42 / 80
V = 0.525 m³
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Energy is an essential part of our daily lives, but the resources that power the earth are being threatened. Imagine a world where people didn't know how to generate energy. What do you think that world might be like? describe your answer in 4-6 sentences.
If we are not able to produce energy anymore, civilization would come to a stand still.
What is energy?We know that the term energy has to do with the ability to do work. Thus we know that a lot of the processes that occur on the earth does require energy so that it would be able to occur.
Energy has become the pivot of modern civilization. Without the ability to produce energy, we can not be able to have a comfortable life and life on the earth would be found to become quite unbearable.
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An accelerator laboratory is considering using a solid-state detector as part of a high-energy experiment. What would be an advantage of using a solid-state detector?.
A solid-state detector converts part of the energy of the particles directly into electric current.
What is a solid-state detector?A semiconductor detector also known as a solid-state detector in ionizing radiation detection is a device that uses a semiconductor generally silicon or germanium to measure the effect of incident particles (charged) or photons.
Semiconductor detectors have broad applications for gamma and X-ray spectrometry, radiation protection, and particle detectors. Solid-state detectors are sensitive to charged particles and are transparent to gamma rays.
Solid-state detectors offer a signal by collecting the charge released in the passage of the particle through a semiconductor. In these detectors, a semiconductor material such as a silicon (Si) or germanium (Ge) crystal constitutes the detecting medium.
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If a kiloparsec (kpc) is equal to 1000 parsecs, how many light years is a kiloparsec
equal to?
(1 point)
O 3, 260 light years
O 3.26 light years
O 3 million light years
O 2, 260 light years
If a kiloparsec (kpc) is equal to 1000 parsecs, light years is a kiloparsec equal to: 3, 260 light years.
What is light years?The distance that light travels in a light-year is one year. At 186,000 miles (300,000 kilometres) per second and 5.88 trillion miles (9.46 trillion kilometres) per year, light travels through interstellar space.
Since a light-year is the maximum distance light can travel in one year and nothing can move faster than that, the answer appears to be 13.8 billion light-years.
Thus, 3,260 many light years is a kiloparsec.
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for a closed universe ( ), is the angular diameter distance monotonic? for an open universe ( ), is the angular diameter distance monotonic?
Simply said, open and closed are infinite or finite. Its critical density is a factor for the geometry. The cosmos is closed (limited) and positively curved like the surface of a ball if the density parameter is larger than 1.
This expansion is supposed to occur at a constant rate in flat geometry. Acceleration is caused by dark energy.According to general relativity, the geometry of space, or its flatness, is directly related to the mass density, hence as space expands, the geometry becomes flatter. Think of space as a balloon's surface. The balloon's surface becomes increasingly flatter as you blow it up. This occurs in three dimensions in space.When we return to our geometry and mass density relationship as space flattens, we discover that the density is pushed toward critical density.Since space expands exponentially during inflation, it is really pushed extremely swiftly toward critical density, which explains why we are so close to the critical mass density.
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For a closed universe, the angular diameter distance is not monotonic. This is because in a closed universe, the expansion rate is decelerating due to the gravitational pull of matter, causing light to bend and curve as it travels through the universe.
This curvature effect can cause the apparent size of objects to vary as a function of their distance, leading to a non-monotonic angular diameter distance.
On the other hand, for an open universe, the angular diameter distance is monotonic. This is because in an open universe, the expansion rate is accelerating due to dark energy, causing light to travel in straight lines and maintaining a constant relationship between the physical size of an object and its angular size as it moves further away. Therefore, the angular diameter distance increases monotonically with distance in an open universe.
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Which condition would exist for the length of day and night to be equal all year long
Answer:
the Equionox
Explanation:
there are only teo times of the year when the earths axis
is tilted neither toward nor away from the sun, resulting on a nearly equal amount of daylight and darkness at all latitudes. these events are referred to as equionoxes
A 16.0 kg canoe moving to the left at 10 m/s makes a head-on collision with a 19.0 kg raft moving to the right at 7.0 m/s. After
the collision, the canoe moves to the right at 1 m/s. What is the velocity of the raft after the collision?
Answer:
Approximately [tex]2.3\; {\rm m\cdot s^{-1}}[/tex] to the left.
Explanation:
When an object of mass [tex]m[/tex] travels at a velocity of [tex]v[/tex], the momentum [tex]p[/tex] of that object will be [tex]p = m\, v[/tex].
Denote motions to the right with a positive sign.
Before the collision:
Velocity of the canoe was [tex](-10)\; {\rm m\cdot s^{-1}}[/tex] since the canoe was moving to the left (opposite to the positive direction.) Momentum of the canoe was [tex]p(\text{canoe, before}) = (16.0\; {\rm kg})\, (-10\; {\rm m\cdot s^{-1}}) = 160\; {\rm kg \cdot m\cdot s^{-1}}[/tex].Velocity of the raft was [tex]19.0\; {\rm m\cdot s^{-1}}[/tex] since the raft is moving to the right (towards positive direction.) Momentum of the raft was [tex]p(\text{raft, before}) = (19.0\; {\rm kg})\, (7.0\; {\rm m\cdot s^{-1}}) = 133\; {\rm kg \cdot m\cdot s^{-1}}[/tex].After the collision:
Velocity of the canoe becomes [tex]1\; {\rm m\cdot s^{-1}}[/tex] (to the right, towards the positive direction.) Momentum of the canoe becomes [tex]p = (16.0\; {\rm kg})\, (1\; {\rm m\cdot s^{-1}}) = 16.0\; {\rm kg \cdot m\cdot s^{-1}}[/tex].Velocity of the raft after the collision needs to be found.Immediately after the collision, momentum [tex]p[/tex] of the canoe and the raft will be conserved. In other words:
[tex]\begin{aligned}& p(\text{canoe, before}) + p(\text{raft, before}) \\ =\; & p(\text{canoe, after}) + p(\text{raft, after})\end{aligned}[/tex].
Rearrange to find [tex]p(\text{raft, after})[/tex] (momentum of the raft immediately after the collision.)
[tex]\begin{aligned}& p(\text{raft, after}) \\ =\; & p(\text{canoe, before}) \\ & + p(\text{raft, before}) \\ & - p(\text{canoe, after}) \\ =\; & (-160\; {\rm kg \cdot m\cdot s^{-1}}) \\ &+ (133\; {\rm kg \cdot m\cdot s^{-1}}) \\ & - (16.0\; {\rm kg \cdot m\cdot s^{-1}}) \\ =\; & (-43)\; {\rm kg \cdot m\cdot s^{-1}} \end{aligned}[/tex].
(Momentum of the raft is negative since the raft is moving to the left, away from the positive direction.)
Divide the momentum of the raft by the mass of the raft to find the velocity of the raft:
[tex]\begin{aligned} \frac{(-43\; {\rm kg\cdot m\cdot s^{-1}})}{(19.0\; {\rm kg})} \approx (-2.3)\; {\rm m\cdot s^{-1}}\end{aligned}[/tex].
Supose 1.3 Kg of water are heated from 20 °C to 80 °C. How much energy was transferred to the
water?(Water Specific heat capacity is 4184 J/Kg-°C).
Answer:
Q = (80 - 20) deg C * 1.3 kg * 4184 J / (deg C kg) = 326,000 Joules
explain why the ir thermal image of the heated plate at a uniform temperature looks different in temperature scales
Due to gradient difference ir thermal image of the heated plate at a uniform temperature looks different in temperature scales
In order to clarify field studies pertaining to animal ecology, thermal imaging is a very effective remote sensing technique for a variety of reasons. A wide range of platforms, including land, water, and air-based vehicles, are used to collect thermal imaging data in real time at the speed of light. It is superior to visible imaging technologies because it can detect animals in a wide range of typically problematic atmospheric conditions because thermal radiation can penetrate smokes, aerosols, dust, and mists more effectively than visible radiation. It is a completely passive imaging method that works in both daylight and darkness. As a result, there are fewer disruptions and stressful disturbances to wildlife while data collection is taking place. Because it contrasts the emissivity of the animal with its background rather than comparing temperatures, it can detect animals that are colder, warmer, or the same temperature as their background.To study about remote sensing -
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2. Calculate the acceleration of a school bus when a force of 2000 N is applied. The mass is
1000 kg.
Answer:
2m/s square
Explanation:
this means force is the product of mass and acceleration.so a=f/mA=2000N/1000kg A=2m/s squarewhere a is acceleration f is force and m is massTwo identical objects go around circles of identical diameter, but one object goes around the circle twice as fast as the other. The centripetal force required to keep the faster object on the circular path is.
Answer:
a
Explanation:
What is the current through this circuit?
Answer: 1.25 A
Explanation:
I = R/V (Ohm's Law)
I = 150 Ω / 120 V = 1.25 A
A rubber block weighing 40.0 newtons is resting on a horizontal level surface of dry concrete. What is the magnitude of the minimum force needed to start the rubber block moving across the dry concrete?
The minimum force to start the block moving is 40N
What is limiting frictional force?Limiting friction occurs when the moving force and the force opposing motion are equal,any addition to the moving force will cause slipping. The limiting frictional force is proportional to the normal reaction between the contacting surfaces and is independent of the area of contact.
Therefore for an object to be stationary, the moving force is equal to force opposing it. In these scenario the minimum force to move a stationary object must be equal to the weight of the object. The weight of the object is 40N.
Therefore the minimum force to move the block is 40N.
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which statement is true about the relationship between hubble's constant and the age of the universe? which statement is true about the relationship between hubble's constant and the age of the universe? the larger the value of hubble's constant, the slower the universe is expanding and the older the universe must be. the larger the value of hubble's constant, the faster the universe is expanding and the younger the universe must be. the larger the value of hubble's constant, the slower the universe is expanding and the younger the universe must be. there is no relationship between the value of hubble's constant and the age of the universe.
The correct statement is:
"The higher the value of the Hubble constant, the faster the universe is expanding and the younger it should be."
The Hubble's constant, named after American astronomer Edwin Hubble, is a measure of the expansion rate of the universe. It is defined as the ratio of the speed at which a galaxy is moving away from an observer to its distance from the observer. We can use this constant to calculate the age of the universe by estimating how long it took the universe to reach its current size.
The higher the Hubble constant, the faster the galaxies are moving away from each other. This means that the universe is also expanding faster, so it should be younger. Conversely, a small value of the Hubble constant means that the universe is expanding slowly, and therefore must be older.
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Determine the distance a 741.19 W crane lifts a crate in 57.59 s if it uses a force of 546,422.14 N.
The distance at which the crane lift a crate is 0.0781 m.
What is distance?Distnace is the lenght between two points.
To determine the distance the crane can lift the crate, we use the formula below.
Formula:
d = Pt/F.......................... Equation 1Where:
d = DistanceP = Powert = TimeF = ForceFrom the question,
Given:
P = 741.19 Wt = 57.59 sF = 546422.14 NSubstitute these values into equation 1
d = (741.19×57.59)/546422.14d = 0.0781 mHence, the distance is 0.0781 m.
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a ball has a diameter of 3.81 cm and average density of 0.0835 g/cm3. what force is required to hold it completely submerged under water?
Force required to hold ball completely submerged under water is calculated as 0.257 N.
What is buoyant force?Net upward force on any object in any fluid is called buoyant force . If buoyant force is greater than the object's weight, then the object will rise to the surface and float.
Given, ρ1 = 0.0835 g/cm3 and ρ2 =1g/cm3)
and radius = 3.81/2 cm = 1.9 cm
As, the volume of sphere = 4/3 π r3
and mass of sphere = 4/3 π r3 ρ1
So, weight of the sphere is 4/3 π r3 ρ1 g
Volume of water displaced = 4/3 π r3
As we know, buoyant force = 4/3 π r3 ρ2 g
= 4/3 π * 1.9 * (1-0.0835) *9.81
= 257.66 * 10^-3
F = 0.257 N
Force required to hold it completely submerged under water is 0.257 N
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Michael uses his bike to apply 494 N to himself and the bike by pedaling as he approaches a 1.9 m tall ramp which is 3.4 m away. What work does the Michael do on himself and the bike he is riding?
How fast would a 0.40 kg football have to be thrown to have a momentum of 8 kg m/s?
20 m/sec fast would a 0.40 kg football have to be thrown to have a momentum of 8 kg m/s.
What is momentum?It is measured by "mass velocity," since momentum depends on velocity, and it also depends on the direction of the body's motion. Since velocity and mass are both scalar quantities, momentum is also a vector quantity.
Given that,
mass of football (m) = 0.40 kg
momentum (p) = 8 kg.m/sec
As we know,
p = mv
8 kg.m/sec = 0.40 kg × v
v = (8 kg.m/sec ÷ 0.40 kg)
v = 20 m/sec
Now, 20 m/sec fast would a 0.40 kg football have to be thrown to have a momentum of 8 kg m/s.
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A baker pushes a cart full of rolls with a force of 20.0 N for a distance of 4.0 m. How much work does the baker do on the cart?
Answer:
80
Explanation:
You calculate work by W(j)=Force(n) x distance moved (m)
So 20.0 N x 4.0 m = 80.
:)
The work done when a baker pushes a cart full of rolls with a force of 20.0 N for a distance of 4.0 m is 80 Nm.
What is Work done?
The work done by a force can be defined as the product of the displacement of that object and the component of the applied force of the object which is in the same direction as that of displacement. When we push a block with some force 'f' and the body moves with some acceleration, work is done.
W = f × d
where, W = work done,
f = applied force,
d = displacement of the object
W = 20N × 4.0m
W = 80Nm
Therefore, the work done by the baker on that cart is 80 Newton meters.
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Car 1 has a body made from aluminium and car 2 has a body made from steel. Which car is likely to be more prone to corrosion?.
The car that will be more prone to corrosion is the aluminium car (Car1)
What is corrosion?Corrosion is when a refined metal is naturally converted to a more stable form such as its oxide, hydroxide or sulphide state this leads to deterioration of the material.
Most metals are easily oxidized I.e they tend to lose electrons to oxygen or other substances in the air or in water. As oxygen is reduced (gains electrons), it forms an oxide with the metal.
Both aluminium and steel do not rust but steel has better edge to aluminium in resistance to corrosion because steel has chromium which gives it a protective film and excellent corrosion resistance. Moreover steel is non porous substance.
Therefore the aluminum car will be more prone to corrosion.
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A block is dropped on to
the track and bounces back
to the dropping point.
Is energy conserved or not?
Answer: yes
Explanation:
a stone is thrown straight upwards with a velocity of 6.38 m/s, starting from 1.63 m above the ground. how long does it take the stone to reach the ground? g
The time taken for the stone to reach the ground when it is thrown above the ground is 0.57 s.
Given that,
Velocity of the stone = 6.38 m/s
Height above the ground = 1.63 m
The time t at which the stone's vertical position y(t) becomes zero is the amount of time it takes for it to fall to the earth.
It is given by the formula, y(t) = 1.63 - 1/2* 9.81* t² = 0
1.63 - 4.9 t² = 0
4.9 t² = 1.63
t² = 1.63/4.9 = 0.33
t = 0.57 s
Thus, the time taken by the stone to reach the ground is 0.57 s.
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storms in the south pacific can create waves that travel all the way to the california coast, which are 12,000 km away. how long does it take them if they travel at 18.3 m/s?
we may estimate that the storm's effects will last for about 9.3 days.
We were informed that a wave is produced in the south pacific ocean. Additionally, these phrases produce waves that have a 15 m/s speed and can travel 12,000 kilometres. These waves, which are produced in the southern Pacific, can travel this far. Therefore, we simply utilise the standard equation that T equals distance times speed at the time of combat. Therefore, we must translate this distance into metres. Thus, 12,000 times 1000 is greater than 15. As Pete lacks seconds, the results are revealed. Thus, this can be expressed as eight times ten, increased to five seconds. So let's convert to our words first. Therefore, in terms of us, we will find that this equals to ours be 222 points. In order to determine the approximate number of days, we need to divide the amount by 24. 9.3 approximately Therefore, we may estimate that the storm's effects will last for about 9.3 days.
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unpolarized light is passed through two successive polaroid filters, each with its transmission axis at 45.0° to the preceding filter. what percentage of light energy gets through?
The amount of light that passes through the three Polaroid filters in order is 12.5%.
Does "light" imply "not heavy"?Light is an adjective that describes something that isn't weighty, cumbersome, or depressing. A conversation topic or a music piece are both examples of things that can be considered light. The weight is light even though the trip is long, for instance.
Angle of transmission axis; θ = 45°
Formula for intensity of light from first polarizer is;
I₁ = ¹/₂I₀
Formula for intensity of light from second polarizer is;
I₂ = I₁cos²θ
Formula for intensity of light from third polarizer is;
I₃ = I₂cos²(90 - θ)
Combining the 3 equations;
Put ¹/₂I₀ for I₁ in second formula to get;
I₂ = ¹/₂I₀cos²θ
Put ¹/₂I₀cos²θ for I₂ in third formula to get;
I₃ = ¹/₂I₀cos²θ*cos²(90 - θ)
Plugging in 45° for θ gives;
I₃ = ¹/₂I₀cos²45*cos²(90 - 45)
⇒ I₃ = ¹/₂I₀cos²45*cos²45
⇒ I₃ = ¹/₂I₀cos⁴45
Now, cos 45 in surd form is 1/√2. Thus;
I₃ = ¹/₂I₀(1/√2)⁴
I₃ = ¹/₂I₀(¹/₄)
I₃ = ¹/₈I₀
I₃/I₀ = ¹/₈
I₃/I₀ = 0.125
In percentage form, we have;
I₃/I₀ = 12.5%
Why is light such an effective symbol?Light is a universally recognized metaphor for knowledge and rational reasoning; it is the antithesis of darkness or ignorance. The dark is almost usually thought to be ominous and dangerous, connected with things that cannot understand. According to legend, light dispels darkness and creates order from chaos.
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Question 13 of 25
Which of the following changes would make a heat engine waste more
energy as heat?
OA. A decrease in its exhaust temperature
OB. An increase in work done
OC. A decrease in randomness
OD. A decrease in its operating temperature
Answer:
D. A decrease in its operating temperature