Answers
Answer: question 1 , would be one question 2 , would be 1 joule and number three would be number one and number four would be , power and last one would be, number two
Explanation: sorry if its wrong
Related Questions
Very few people have a definite and pure somatotype. True False
Answers
Answer: True
Explanation: I got it right on my test :)
Two mugs are on a table. What would you need to know in order to determine which mug contains the most thermal energy?
Answers
Answer: you would need to know the mass of each mug
a student compared two samples of matter. he recorded the results in the chart. Sample A: Appearance: shiny and yellow. Sample B: Appearance: Dull and yellow. Which property do the two samples have in common? A. volume. B. color
Answers
Answer:
The answer are B
Explanation:the two samples haves yellow color :)
Answer:
B or 2
Explanation:
both of the samples contain a yellow color.
the flow of nutrients through an ecosystem is cyclic
Answers
Answer:
Yes
Explanation:
The flow of nutrients through ecosystem is cyclic as the nutrients move from one trophic level to another trophic level all the way up and then back down.
Temperatures of gases inside the combustion chamber of a four‑stroke automobile engine can reach up to 1000°C. To remove this enormous amount of heat, the engine utilizes a closed liquid‑cooled system that relies on conduction to transfer heat from the engine block into the liquid and then into the atmosphere by flowing coolant around the outside surface of each cylinder.
Suppose that, in a particular 4‑cylinder engine, each cylinder has a diameter of 8.75 cm, a height of 11.3 cm, and a thickness of 3.14 mm. The temperature on the inside of the cylinders is 195.2°C, and the temperature outside, where the coolant passes, is 130.0°C. The temperature of the incoming liquid (a mixture of water and antifreeze) is maintained at 95.0°C.
What volume flow rate of coolant [tex]\frac{V}{t}[/tex] would be required to cool this engine? Assume that the coolant reaches thermal equilibrium with the outer cylinder walls before exiting the engine. The specific heat of the coolant is 3.75 J/g°C and its density is 1.070×103 kg/m3. The cylinder walls have thermal conductivity of 1.10×102 W/m⋅∘C. Assume that no heat passes through the ends of the cylinders.
Answers
Answer:
thats a lot, which one u want me to do?
Explanation:
A person with a mass of 40 kg is sitting on a box. What is the value of the normal force
Answers
normal force=mass*gravitational force
normal force=40*0
normal force=40
What do psychologists used to assist them in diagnosing abnormal behavior?
Answers
Ok so it usually includes the evaluation of symptom and disorder severity, patterns of symptoms over time number, frequency, and duration of episodes, and the patient's strengths and weaknesses.
Weathered rocks and soil are moved by _____?
A. Weathering
B. erosion
C. cycles
D. deposition
Answers
Answer:
The correct answer is B
I WILL GIVE BRAIN LIST PLS HELP
Answers
Answer:
C is corret answer okay
Distinguish between average speed and average
velocity
Answers
Answer:
The average speed of an object is defined as the distance traveled divided by the time elapsed. Velocity is a vector quantity, and average velocity can be defined as the displacement divided by the time.
A truck with an overall mass of 6,500 kg is accelerating at 0.3 m/s2. What force does the engine need to apply in order to do this? (Round to the nearest tenth of a decimal.)
Answers
Answer:
1950 NExplanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × acceleration
From the question we have
force = 6500 × 0.3
We have the final answer as
1950 NHope this helps you
A box sitting still on the ground by itself has a Normal Force of 700N, what is the mass? (gravity’s acceleration is 9.80 m/s²)
Answers
Answer: 71.43 kilograms
This value is approximate rounded to two decimal places.
=====================================================
Explanation:
The ground is pushing up with a normal force of 700 N. Because the box is sitting still, this means the force of gravity is pulling the box down with a force of 700N to keep things balanced.
If the force of gravity was greater than 700N, then the box would fall through the ground. If the force of gravity was smaller than 700N, then the box would be accelerated upward. Since neither event is happening, the force of gravity must be equal to the normal force.
Now turn to Newton's second law which says
F = ma
where F is the force, m is the mass and 'a' is the acceleration. We're given the acceleration of gravity is roughly 9.80 m/s^2. So a = 9.80
The force we'll plug in is F = 700. The value of m is unknown, but we can solve for it as such
F = ma
700 = m*9.80
700 = 9.08m
9.80m = 700
m = 700/9.80
m = 71.4285714285714
m = 71.43
The mass is roughly 71.43 kilograms.
4.5 x 10kg) - (2.3 x 10 kg)
Answers
Answer:
22 kg
Explanation:
I hope this helps!
Answer:
22 kilograms
Hope it helps :) (if it does can i pls have brainliy thing)
Sophia was studying with Maalik about the layers of the Earth. They were given several different statements about the layers. Which statement about the layers would they identify as correct?
A-The outer core is less than 70 km in thickness.
B-The crust assists in forming Earth’s magnetic field.
C-The mantle is denser than the crust.
D- Pressure increases when moving from the core to the crust.
Answers
The statement about the layers of the Earth that both Sophia and Malik would identify as correct is: C. The mantle is denser than the crust.
Earth is one of the planets that rotates on its axis and revolves around the Sun. Also, planet Earth is the only planet known to harbor and support life.
Based on astronomical records, planet Earth comprises four (4) distinct layers starting at the center and these include:
The inner coreThe outer coreThe mantleThe crustThe mantle has a density of 4.5 [tex]g/cm^3[/tex] while the crust has a density of 2.6 [tex]g/cm^3[/tex] because temperature and pressure within planet Earth increases with depth.
In conclusion, the mantle is denser than the crust since it is made up of metals rather than solid rocks and minerals which are found within the crust.
Read more: https://brainly.com/question/11288481
Answer:
c
Explanation:
a jet can travel at 400 minutes per second how far will it travel at this speed in 3 seconds
Answers
A jet can travel 1200 minutes for 3 seconds
Answer:
1200
Explanation:
what are some examples of focus
Answers
The critical angle of diamond is 24 degrees. What is its refractive index?
Answers
Answer:
2.46
Explanation:
From the question given above, the following data were obtained:
Critical angle (C) = 24 °
Refractive index (n) =?
The refractive index of the diamond can be obtained by using the following formula as illustrated below:
Refractive index (n) = 1 / sine [critical angle (C)]
n = 1/sine C
n = 1 / sine 24 °
n = 1/0.4067
n = 2.46
Thus, the refractive index of the diamond is 2.46
D. 1
1.212.52
-2
12
12
Answers
Answer:
what?
Explanation:
1. What are the characteristics of winds?
2. The wind vane should be located well above the ground. Why?
3. Describe cup anemometers
Answers
Answer:
wind has two important things that is direction and speed.
2. If a car accelerates uniformly at a rate of
4.0 m/s2, how long will it take to reach a speed of 20
m/s, starting from rest?
Answers
Answer:
The car will take 5 seconds
Explanation:
Constant Acceleration Motion
It's a type of motion in which the velocity of an object changes uniformly in time.
If the object starts from a speed vo during a time t with an acceleration a, then its final speed is:
[tex]v_f=v_o+at[/tex]
The car is accelerating at a rate of a= 4~m/s^2 and reaches a speed of vf=20 m/s starting from rest (vo=0).
From the equation shown above, we solve for t:
[tex]\displaystyle t=\frac{v_f-v_o}{a}[/tex]
[tex]\displaystyle t=\frac{20-0}{4}[/tex]
[tex]\displaystyle t=\frac{20}{4}[/tex]
t = 5 seconds
The car will take 5 seconds
How often should muscle strengthening activities be performed?
A-Never
B-Once a week
C-Twice a week
D-At least three times per week
Answers
Answer:
once a week
Explanation:
once a week so answer B
Answer:
B-Once a week
Explanation:
You answer is B-Once a week
Scientists observed a rock stratum with fossils. If mollusks
Answers
Answer:
scientist observed a rock stratum with fossils.if mollusks evolved before arthropod where will there fossils be found
A rock fell of the edge of a cliff and encountered a displacement of 50m. The final vertical velocity of the rock was 10m/s. Find the time the rock was in the air, the horizontal velocity when the rock left the cliff and the vertical displacement the rock had.
Answers
Answer:
A.) 3.19s
B.) 0
C.) 55.1
Explanation:
Given that a rock fell of the edge of a cliff and encountered a displacement of 50m. The final vertical velocity of the rock was 10m/s.
To Find the
A.) time the rock was in the air,
Given that
h = 50m,
initial velocity U = 0,
acceleration due to gravity g =9.8m/s^2
Using second equation of motion:
h = Ut + 1/2gt^2
Substitute all the parameters into the equation
50 = 1/2 × 9.8 × t^2
100 = 9.8t^2
t^2 = 100/9.8
t^2 = 10.2
t = 3.19s
B.) the horizontal velocity when the rock left the cliff
The horizontal velocity is equal to zero since horizontal acceleration is zero.
C.) and the vertical displacement the rock had.
Using the third equation of motion.
V^2 = U^2 + 2gH
Where U = 0
V = 10m/s
Substitute all the parameters into the formula
10^2 = 0 + 2 × 9.8 × H
100 = 19.6H
H = 100/19.6
H = 5.1
The vertical displacement = 50 + 5.1
The vertical displacement = 55.1 m
Determine the average speed of a runner who runs 15 Km in one hour and 30 minutes
Answers
v=15/90
v=0.16 km/min
do heavier objects fall faster than lighter objects?
Answers
Answer:
Heavy objects fall at the same rate (or speed) as light ones. The acceleration due to gravity is about 10 m/s2 everywhere around earth, so all objects experience the same acceleration when they fall.
Explanation:
Two kids are swinging on a swing set. If one kid is larger than the other, how would it affect their kinetic and potential energy? If they both jumped off the swing, who would fly farther? Why?
Answers
Answer:
Yes it would affect the energy. the one who is smaller would fly
Explanation:
the larger kid is carring all the weight so he would have more energy on his side and the smaller kid would fly bc he lighter and has less energy on his side.
Hope this helps.
A 1.00 kg sphere M, suspended by a string from point P, is lifted to a height h. The sphere is released and passes through the lowest point in its swing at a speed of 10.0 meters per second. [Neglect friction.]
a. Calculate the height from which the sphere was released. [Show all work including equation and substitution with units]
b. Compared to the sphere’s speed through the lowest point of its swing when released from h, the sphere’s speed through the lowest point when released from 2h would be
Answers
Answer:
(a) h = 5.1 m
(b) v = 14.13 m/s
Explanation:
(a)
We will use the law of conservation of energy. For this situation it states that:
Loss in Potential Energy of Sphere = Gain in Kinetic Energy of the Sphere
mgh = (1/2)mv²
h = v²/2g --------------- equation (1)
where,
h = height = ?
v = speed at lowest point = 10 m/s
g = 9.8 m/s²
Therefore,
h = (10 m/s)²/(2)(9.8 m/s²)
h = 5.1 m
(b)
using the equation (1)
h = v²/2g
v = √2gh
where,
v = velocity = ?
g = 9.8 m/s²
h = height = 2(5.1 m) = 10.2 m
Therefore,
v = √[2(9.8 m/s²)(10.2 m)]
v = 14.13 m/s
The height from which the sphere was released is 5.1 m
When the height is doubled, the speed of the sphere becomes 14.14 m/s.
The given parameters:
Mass of the sphere, m = 1.0 kgSpeed of the sphere, v = 10 m/sThe height from which the sphere was released is calculated as follows;
[tex]P.E = K.E\\\\mgh = \frac{1}{2}mv^2\\\\gh = \frac{1}{2}v^2\\\\h = \frac{v^2}{2g}\\\\h = \frac{(10)^2}{2(9.8)} \\\\h = 5.1 \ m[/tex]
When the height is doubled, the speed of the sphere becomes;
[tex]h = \frac{v^2}{2g} \\\\v^2 = 2gh\\\\v = \sqrt{2gh} \\\\v = \sqrt{2 \times 9.8 \times (2 \times 5.1)} \\\\v = 14.14 \ m/s[/tex]
Learn more about conservation of mechanical energy here: https://brainly.com/question/6852965
Why is the process of photosynthesis important to food webs?
Answers
Answer:
to know what that specif animal or thing does in the food chain
Explanation:
n.
What is longitudinal wave?
0.
Define transverse wave.
Answers
Longitudinal waves are those waves which move in the same direction as of the particle of the medium. That means, The Particles of the medium move forward and backward just like the Wave move forward so they propagate in the same direction.
Example:The Sound wave is the example of the longitudinal wave as it propagates in the same direction as the particle do.
_____________________________________Transverse Wave:Transverse wave are those waves which propagate in the perpendicular direction as of the particle of the medium. That means, The particle moves up and down but the wave propagate in forward direction. So they dont move in similar direction but perpendicular.
Example:Water wave is the perfect example of the transverse wave as you can see that water particles form crest(Up the midline) and trough(down the midline) i.e. upward and downward movement but the water actually moves forward in direction.
_____________________________________I have attached the picture below!_____________________________________Best Regards,'Borz'A ball is thrown with initial velocity 20 meter per second by making an angle 30 degree with a horizontal then find time of flight.
Answers
Answer:
[tex]\huge\boxed{\sf T = 2.04\ secs}[/tex]
Explanation:
Given Data:
Initial Velocity = [tex]\sf V_{i}[/tex] = 20 m/s
Angle = [tex]\sf \theta[/tex] = 30°
Acceleration due to gravity = g = 9.8 m/s²
Required:
Time of flight = T = ?
Formula:
[tex]\sf T = \frac{2\ V_{i}\ sin\theta}{g}[/tex]
Solution:
Putting values in the above formula
T = 2(20)sin 30 / 9.8
T = 40 (0.5) / 9.8
T = 20 / 9.8
T = 2.04 secs
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AnonymousHelper1807