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xz_007 [3.2K]
3 years ago
6

Thermal escape of an atmosphere is most pronounced on worlds where the gravity is low and the temperature is high.

Physics
1 answer:
Alona [7]3 years ago
7 0
The answer is false
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Charges of +5C and −9C are at a distance of 1m from each other. Which diagram represents the force between the two charges?
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the answer is CCCCCCCCCCCCCCCCC

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A square loop of wire consisting of a single turn is perpendicular to a uniform magnetic field. The square loop is then re-forme
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A proton moves perpendicularly to a uniform magnetic field b with a speed of 3.7 × 107 m/s and experiences an acceleration of 5
svlad2 [7]
The magnetic force experienced by the proton is given by
F=qvB \sin \theta
where q is the proton charge, v its velocity, B the magnitude of the magnetic field and \theta the angle between the direction of v and B. Since the proton moves perpendicularly to the magnetic field, this angle is 90 degrees, so \sin \theta=1 and we can ignore it in the formula.

For Netwon's second law, the force is also equal to the proton mass times its acceleration:
F=ma

So we have
ma=qvB
from which we can find the magnitude of the field:
B= \frac{ma}{qv}= \frac{(1.67 \cdot 10^{-27}kg)(5\cdot 10^{13}m/s^2)}{(1-6 \cdot 10^{-19}C)(3.7 \cdot 10^7 m/s)}=0.014 T
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3 years ago
A 10kg box is sliding at 50m/s. Find the momentum
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The momentum of the ball is 500 kg·m/s

Explanation:

The momentum is given by Mass × Velocity

The given parameters are;

The mass of the box = 10 kg

The velocity by which the box is sliding = 50 m/s

Therefore, the momentum of the ball is given as follows;

The momentum of the ball = 10 kg × 50 m/s = 500 kg·m/s

The momentum of the ball = 500 kg·m/s

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When a cyclist moves downhill without pedalling, what type of energy does he gain?
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He is gaining kinetic energy and losing potential energy

Explanation:

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