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SOVA2 [1]
3 years ago
15

Calculate the electrostatic force between two protons separated by a distance of 0.90 m

Physics
1 answer:
cluponka [151]3 years ago
6 0
Use F = (9x10^9 x 1.6x10^-19x 1.6x10^-19) / (0.9 x 0.9)
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A car moving around a circular track with constant speed (Select all that apply.) has an acceleration with a direction that cann
BARSIC [14]

Answer:

Explanation:

Has an acceleration directed towards center of its path

5 0
3 years ago
A 0.001kg bullet is fired with a velocity of 800m/s into a soft wood of mass 1kg resting on a smooth surface. Find the final vel
V125BC [204]

The final velocity of the bullet+block is 0.799 m/s

Explanation:

We can solve this problem by applying the principle of conservation of momentum: in fact, the total momentum of the bullet-block system must be conserved before and after the collision.

Mathematically, we can write:

mu+MU=(m+M)v

where

m = 0.001 kg is the mass of the bullet

u = 800 m/s is the initial velocity of the bullet

M = 1 kg is the mass of the block

U = 0 is the initial velocity of the block (initially at rest)

v is the final combined velocity of the bullet and the block

Solving the equation for v, we  find the final velocity:

v=\frac{mu}{m+M}=\frac{(0.001)(800)}{0.001+1}=0.799 m/s

Learn more about conservation of momentum:

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4 0
3 years ago
Which examples are simple machines?
frozen [14]
A hammer and a pulley
4 0
3 years ago
Is the temperature and density of Earth's crust high or low? Why?
Setler [38]

Answer:

The crust is the first layer of the earth. It is split up into two parts the continental crust, and the oceanic crust. The oceanic crust takes up 71% of the earths crust, and the other 29% of the crust is continental. The continental is made up of igneous rocks, and the oceanic crust is made up of sedimentary and basalt rocks. The continental crust is older than the oceanic crust, some of the rocks are 3.9 billion years old. The density average of the oceanic crust is 3g/cm. The average density of the continental earth is 2.7g/cm. The temperature of the crust is around 200-400 degrees Celsius. The crust is about 60 km thick under a continent and 5 km thick under the ocean. The crust is constantly moving.  The crust doesn't even make up 1% of the earth!  The crust is the layer were tectonic plates can be found.

Explanation:

7 0
4 years ago
How does changing the wavelength alter the frequency of the wave? & How does altering frequency alter pitch?
Rufina [12.5K]

for a given type of wave in a given medium a larger frequency means a smaller wavelength

3 0
3 years ago
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