Answer:
A. 10 joules
Explanation:
Given parameters:
Mass of object = 4kg
Speed = 5m/s
Unknown:
Kinetic energy of the the object = ?
Solution:
Kinetic energy is the energy due to a moving body.
So;
mathematically;
K.E = [tex]\frac{1}{2}[/tex] x m v²
m is the mass
v is the velocity
K.E = [tex]\frac{1}{2}[/tex] x 4 x 5 = 10J
The kinetic energy of the given moving object is 50 J. The Kinetic energy of an object is the energy due to its motion.
What is Kinetic energy?The Kinetic energy of an object is the energy due to its motion. It can be given as
[tex]KE = \dfrac 12 mv^2[/tex]
Where,
[tex]m[/tex] - mass = 4 kg
[tex]v[/tex] - velocity = 5 m/sec.
Put the values in the formula,
[tex]KE = \dfrac 12 4 \times 5^2\\\\KE = 50 \rm \ J[/tex]
Therefore, the kinetic energy of the given moving object is 50 J.
Learn more about kinetic energy:
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i single and thiccccc hmu
Answer:
wtfffff
Explanation:
wtffffff
why do yall think it is ok to judge ppl based on how they look bc from my point of view i dont think its ok i think ppl are beautiful in there own way
Answer:
hgggkwhhsvshwhhwbejshsbehe
Answer:
true!
Explanation:
I am happy to see some THINGS like this!
Juan rides his horse with a constant
speed of 18 km/h. How far can he travel
in 1/2 hour?
Answer:
He traveled 9km
Explanation:
To do this problem you need to use the equation which is Speed= distance/time and this problem gives you the speed which is 18 km/h and it gives you the time 1/2 hour so you write the equation 18= d/ 1/2 which his distance is 9km
How does the magnitude of the force depend on the magnitude (absolute value) of charge 1 and charge 2.
Answer:
Product
Explanation:
The force between two charges is given by :
[tex]F=\dfrac{kq_1q_2}{r^2}[/tex] ...(1)
Where
k is electrostatic constant
q₁ and q₂ are charges
r is the distance between charges
From equation (1), it is clear that the magnitude of the force is directly proportional to the product of charges.
If the wavelength is 10 m and the frequency is 5 Hz, what is the wave speed?
How does the sun maintain its high temperature and energy output?
Answer:
The core of the sun is the region that extends from the center to about 20–25% of the solar radius. It is here, in the core, where energy is produced by hydrogen atoms (H) being converted into nuclei of helium (He). ... The core is the only part of the sun that produces an appreciable amount of heat through fusion.
Explanation:
I got you
By not running out of fuel (Hydrogen).
Rest assured ... When the sun runs low on Hydrogen, it'll go through several complex changes, and it'll end up at much much lower temperature, with much much lower energy output.
bro my mom just baought em
Answer:
weow hahaha lol!
Explanation:
Answer:
LOLOLOLOLOL LOL
Explanation:
Jimmy is cooking pasta in a pot of water on the stove. He uses a stopwatch to see how long the pasta takes to cook depending on the temperature of the water in the pot. What is the independent variable and why?
Answer:
stove
Explanation:
The stove is the independent variable in this question as it does not depend on anything like other variables such as pot, water, temperature and of cause pasta.
The pot depends on the stove, the water depends on the pot and stove, the pasta depends on the water and its temperature.
Cheers.
What is the momentum of a 8 kilogram cart moving with a speed of 12 meters per
second?
Answer:
Explanation:
momentum = mv
m = 8 kg
v = 12 m/s
momentum = 8 * 12 = 96 kg m/s
Refer to your Expeditions in Reading book for a complete version of this text.
Based on “Solar Power for Public Buildings,” which answer best states the author’s position on the use of solar power in California?
A The use of solar energy will double the pollution produced in California.
B The state’s tap water will be purer if processed in solar-powered plants.
C Increasing the use of solar power will positively impact the environment.
D Solar panels remove most of the toxic chemicals found in the atmosphere.
Answer:
d
Explanation:
Answer:
D. Solar panels remove most of the toxic chemicals found in the atmosphere.
People do not believe it is possible to use the sun's energy to create electricity.
Explanation:
I did the test.
When power and current are known use R = P/I^2 to calculate the resistance.
P = 300 watts
C = 30amps
R = ?
R = resistance, P = Power, 1 = Current
[tex] \sf• \: Power \:( P) = 300 \: watts[/tex]
[tex] \sf• \: Current \: (I) = 30 \: amps[/tex]
[tex] \\ [/tex]
[tex]\bf{ \underline{To \: Find:- }}[/tex][tex] \sf• \: The \: Resistance [/tex]
[tex] \\ [/tex]
[tex] \huge\bf{ \underline{Solution :-:- }}[/tex]
[tex] \bf \red {\bigstar{ Formula \: of \: Power \: (P) = \frac{ {I}^{2} }{R}}}[/tex]
[tex] \sf \rightarrow 300= \frac{ {30}^{2} }{ R} [/tex]
[tex] \sf \rightarrow 300 = \frac{900}{ R} [/tex]
[tex] \rightarrow \sf R = \frac{300}{900} [/tex]
[tex] \rightarrow \sf R = \frac{1}{3} [/tex]
[tex] \rightarrow \sf R = 0.33[/tex]
[tex] \bf \purple{Hence, \: the \: resistance \: is \: 0.33 \: Ω \: . }[/tex]
12. A student has a set of masses to use in an experiment. Which mass has the greatest
inertia?
A. lg mass
B. 5g mass
C. 25g mass
P. 1000 mass
Answer:c
Explanation:
Is a violin and battery potential energy?
Explanation:
In physics, potential energy is the energy held by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors. Common types of potential energy include the gravitational potential energy of an object that depends on its mass and its distance from the center of mass of another object, the elastic potential energy of an extended spring, and the electric potential energy of an electric charge in an electric field. The battery is storing the energy but give it something to power and it'll give its energy to the object and a violin strings are like ruber band and if you play the violin it releases a new type of energy sound energy.
Match each chemical name with the correct chemical formula.
Here are the formula choices:
A. S7O2
B. SO4
C. SO3
D. SO
E. S6O5
List two functions of blood plasma
Answer:
•Helps to maintain va proper pH in the body which supports cell function.
•Carries electrolytes such as sodium and potassium to our muscles.
HELP FAST
I WILL MARK BRAINLEST
The diagram below shows a sled moving along a smooth, frictionless track.
Section 1
Section 2
Section 4
Section 3
In which sections of the track will the sled experience an unbalanced force?
A Sections 1 and 3
B Sections 2 and 3
C Sections 2 and 4
D Sections 3 and 4
Answer:
C. 2 and 4
Explanation:
my teacher went over it and the answer was that
The sections of the track in which the sled would experience an unbalanced force are: C. Sections 2 and 4.
The two types of force.In Science, there are two (2) main types of force that acts on an object and these include:
Balanced forceUnbalanced forceWhat is an unbalanced force?An unbalanced force refers to a type of force that occurs when two (2) or more forces acting on an object are unequal in magnitude, and as such, it typically results in a change of motion.
In this scenario, the sections of the track in which the sled would experience an unbalanced force are sections 2 and 4 respectively.
Read more on unbalanced force here: brainly.com/question/931387
Figure out the volume of the cheese.
Answer:
volume of cheese=l×b×h=5×6×4=120cm³
density=mass/volume=(467/120)=3.89g/m³
The Lotus Evija has an electric engine with 2000 horsepower. Which is equal to how
many watts of power?
Answer:
Power = 1471000[W]
Explanation:
In order to solve this problem, we must use the conversion factor of horsepower to Watts.
1 [Hp] → 735.5 [W]
Now using the conversion factor:
[tex]2000[Hp]*\frac{735.5W}{1Hp}=1471000[W][/tex]
The cheetah can run a distance of 275 m for 9 seconds. Calculate its speed.
Answer: 110000
Explanation:
26/9=30.5555555556
30.5555555556 x 60=1833.33333333
110000 x 60=110000
is a solenoid a magnet or no ??
Answer the term solenoid refers to a long, thin loop of wire, often wrapped around a metallic core, which produces a magnetic field when an electric current is passed through it. Solenoids are important because they can create controlled magnetic fields and can be used as electromagnets
I hope it is helpful
What are the eight types of energy?
A switch and a fuse should be connected with a live wire in an electric circuit
Answer is A switch or a fuse in an electrical circuit is always connected to the live wire so that the socket or appliance is not live when switched off.
i hope it is helpful
What is the unit of a force, and what is 1 unit equivalent to?
Answer:
Newton
Explanation:
The unit of force is Newton and it is given after Sir Isaac Newton for his tremendous works in this regard.
Force is the product of mass and acceleration of a body.
Force = mass x acceleration
The unit of mass = kg
acceleration = m/s²
So;
1N = 1kgm/s²
Therefore, the unit of force is newtons and 1N is equal to 1kgm/s²
How much thermal energy does it take to raise the temperature of 2.5 kg of
plastic from 15°C to 75°C? The specific heat of plastic is 2.60 kJ/(kg.°C)
Answer:
390kJ
Explanation:
what is the difference between the pressure exerted by a soild and by a liquid ?
Tafu is working with subatomic particles in the physics lab. a positron is traveling in a straight line down the particle accelerator. tafu models its position with the function p(t)= t2 t â 1 where t>1. in the limit calculations below, if you need to use -â or â, enter -infinity or infinity. (a) calculate the limit
Answer:
Infinity
Explanation:
When you have a limit approaching infinity one method you can use is to remember that the highest power dominants all of the other ones so when we have (t^2)/t-1 like in your problem, we see that t^2 has the highest power of 2 so if that's going to infinity and it's not being divided by any powers higher than it will just be inifinity.
We have that for the Question, it can be said that in the limit calculations below, if you need to use -â or â, enter -infinity or infinity. the limit is
[tex]Lim_{t->\infty} p(t)= \infty[/tex]
From the question we are told
Tafu is working with subatomic particles in the physics lab. a positron is traveling in a straight line down the particle accelerator.tafu models its position with the function
p(t)= t2 t â 1 where t>1.
in the limit calculations below, if you need to use -â or â, enter -infinity or infinity.
(a) calculate the limit
Generally the equation for the Question is mathematically given as
[tex]p(t)=\frac{t^2}{t-1}\\\\Therefore\\\\For Lim_{\infty}\\\\We have\\\\ Lim_{t->\infty} p(t)= Lim_{t->\infty}\frac{t^2}{t-1}\\\\[/tex]
Since, the equivalent degree of numerator (t^2) is greater than that of the denominator
[tex]Lim_{t->\infty} p(t)= \infty[/tex]
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2 sets of waves with the top waves labeled A having more closely spaced crests than the bottom waves labeled B.
Which answer choice provides the best set of labels for Wave A and Wave B?
Wave A: Longitudinal Wave
Wave B: Transverse Wave
Wave A: High Frequency Wave
Wave B: Low Frequency Wave
Wave A: Transverse Wave
Wave B: Longitudinal Wave
Wave A: Low Frequency Wave
Wave B: High Frequency Wave
The answer is d and FREE PTS!!!
Answer:
A: High Frequency Wave Wave B: Low Frequency Wave Wave
Explanation:
The high-frequency waves are those that have a range of 3 to 30 MHz and have a longer wavelength that has more energy than a low-frequency wave and the more closer are the crest of the waves the more is frequency.
Low-frequency ranges from 30 to 300 kHz and ranges from 10 to 1 km and is suitable for long-distance communication. Mainly used in aircraft navigation and weather systems.
(Just to help)
Have a good day!
Answer:
A
Explanation:
An example of a poor conductor of electricity is a
A. paper clip
B. gold necklace
c. cup of salt water.
D.
cup of pure water.
Answer:
5
Explanation:
Because it right
what force acts between earth and the moon
Explanation:
Gravity
Gravity is one major force that creates tides. In 1687, Sir Isaac Newton explained that ocean tides result from the gravitational attraction of the sun and moon on the oceans of the earth (Sumich, J.L., 1996).
A 250 kg car has 6875 kg•m/s of momentum. What is it’s velocity?
Answer:
v = 27.5 m/s
Explanation:
p = m × v
6,875 = 250 × v
250v = 6,875
v = 6,875/250
v = 27.5 m/s