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igor_vitrenko [27]
3 years ago
9

What makes an object stop, speed up, slow down or change direction? V2

Physics
1 answer:
ycow [4]3 years ago
5 0

Your answer: Force

Explanation: The action from a force can cause an object to move or speed up, slow down, stop or change directions.

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Why are solids good at transferring heat through conduction?
seraphim [82]
The chemical bonds alow it to pass to the other object.
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atoms are unstable unless they have a similar number of protons and neutrons. To make the carbon atom stable, add 6 neutrons to
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Answer:

Mass number of carbon is 12.

Explanation:

Carbon atom is defined as 6 atoms in a nucleus, and the mass number is the total number of protons and neutrons in the nucleus of an atom.  

Before any neutrons are added to the carbon atom, its mass number is 6;<em> after 6 neutrons are added, the total number of protons and neutrons is now 12—the mass number becomes 12.</em>

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A trolley at rest is pushed to accelerate at a
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A parallel-plate air capacitor is made from two plates 0.190 m square, spaced 0.770 cm apart. It is connected to a 120 V battery
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Answer:

aaksj

Explanation:

a) the capacitance is given of a plate capacitor is given by:

C = \epsilon_0*(A/d)

Where \epsilon_0 is a constant that represents the insulator between the plates (in this case air, \epsilon_0 = 8.84*10^(-12) F/m), A is the plate's area and d is the distance between the plates. So we have:

The plates are squares so their area is given by:

A = L^2 = 0.19^2 = 0.0361 m^2

C = 8.84*10^(-12)*(0.0361/0.0077) = 8.84*10^(-12) * 4.6883 = 41.444*10^(-12) F

b) The charge on the plates is given by the product of the capacitance by the voltage applied to it:

Q = C*V = 41.444*10^(-12)*120 = 4973.361 * 10^(-12) C = 4.973 * 10^(-9) C

c) The electric field on a capacitor is given by:

E = Q/(A*\epsilon_0) = [4.973*10^(-9)]/[0.0361*8.84*10^(-12)]

E = [4.973*10^(-9)]/[0.3191*10^(-12)] = 15.58*10^(3) V/m

d) The energy stored on the capacitor is given by:

W = 0.5*(C*V^2) = 0.5*[41.444*10^(-12) * (120)^2] = 298396.8*10^(-12) = 0.298 * 10 ^6 J

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3 years ago
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A. <span> using a ramp to load boxes onto a truck </span>
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