4 years ago

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]4 years ago

7 0

The answer is false

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Neutrons can change the charge of an atom<br><br> True<br> False

IceJOKER [234]

Answer:

False. They can’t change the charge but they can change the mass

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3 years ago

Explain why the focal point of a diverging lens is called a virtual focal point.

4vir4ik [10]

The concave lens is a diverging lens, because it causes the light rays to bend away (diverge) from its axis. In this case, the lens has been shaped so that all light rays entering it parallel to its axis appear to originate from the same point, F, defined to be the focal point of a diverging lens.

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3 years ago

If the same change in velocity occurs in less time, does the magnitude of the corresponding average acceleration increase, decre

Zielflug [23.3K]

Answer:

increase

Explanation:

As acceleration is the time rate of change of velocity

a = Δv/t

with t in the denominator, smaller time values result in greater acceleration values with constant velocity change.

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3 years ago

Independent measurements of two lengths are made. The results are x=95 +- 0.1 and y=2.30+-0.02 cm

notsponge [240]

95-2.30+0.1+0.02cm =0.00089186
100m

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3 years ago

A single-turn circular loop of wire that has a radius of 3.5 cm lies in the plane perpendicular to a spatially uniform magnetic

Lena [83]

Explanation:

Given that,

Radius of the circular loop, r = 3.5 cm = 0.035 m

(a) During a 0.12-s time interval, the magnitude of the field increases uniformly from 0.2 T to 0.5 T. Due to the change in the magnetic field, an emf will induced in it. The magnitude of induced emf is given by :

$\epsilon=-\dfrac{d(BA)}{dt}\\\\\epsilon=-\pi r^2\dfrac{B_f-B_i}{dt}\\\\\epsilon=-\pi (0.035)^2\dfrac{0.5-0.2}{0.12}\\\\\epsilon=-9.62\times 10^{-3}\ volts$

So, the magnitude of the emf induced in the loop during the time interval is $9.62\times 10^{-3}\ V$ .

(b) The negative sign shows that the direction of induced emf in the loop is in anitclockwise direction.

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3 years ago