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nirvana33 [79]
3 years ago
8

Gabriel is performing an experiment in which he is measuring the energy and work being done by a ball rolling down a hill.Which

statement BEST describes Gabriel's measurements?
A. They will remain constant.
B.They will both be recorded in joules.
C.They will both be recorded in hertz.
D.They will involve compressions.
Physics
2 answers:
Rufina [12.5K]3 years ago
7 0
I think this one's B. energy and work are both measured in joules.
Alex787 [66]3 years ago
6 0

Answer:

B

Explanation:

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Explanation:

v=(750)(45.7)

v=34275

or

v=(750)(0.457)

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3 0
3 years ago
What is the gravitational acceleration close to the surface of a planet with a mass of 9ME and radius of 3RE, where ME and RE ar
Papessa [141]

Answer:

9.78 m/s²

Explanation:

To solve this, we use the gravitational formula

g = GM/r², where

g = acceleration due to gravity

G = gravitational constant

M = mass of the planet

r = radius of the planet

From the question, we got that the mass of the planet is

M = 9ME, where ME = 5.95*10^24

M = 9 * 5.95*10^24

M = 5.355*10^25 kg

Also, the Radius of the planet, R = 3RE, where RE = 6.37*10^6

R = 3 * 6.37*10^6

R = 1.911*10^7 m

On applying the values of both R and M to the equation, we get

g = GM/r²

g = (6.67*10^-11 * 5.355*10^25) / (1.911*10^7)²

g = 3.57*10^15/3.65*10^14

g = 9.78 m/s²

Therefore, the acceleration due to gravity on the planet is 9.78 m/s²

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5 0
3 years ago
Two infinite plane sheets with uniform surface charge densities are placed parallel to each other with separation d. in the regi
kupik [55]

Answer:Uniform between the plates

Explanation:

Electric Field due to infinite sheet with uniform charge is given by

E=\dfrac{\sigma }{\epsilon _0}

Where \sigma=charge density

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From the formula we can see that Electric field is independent of distance of the particle, so it is uniform between the plates .

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Answer:

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v = 50m/s

u = 0m/s

a = +g = 10m/s²

s = H = ?

using the formula,

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H = 2500/20

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8 0
2 years ago
Which of the following accurately describes the behavior of these two mechanical waves when they intersect?
Lerok [7]
D because I learned this 2 years ago
5 0
3 years ago
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