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3 years ago

Mrs. Howel, the principal, can expel a student for misconduct. In terms of social pressure, Mrs. Howel is capable of eliciting

Physics

1 answer:

dybincka [34]3 years ago

8 0

The answer would be D)Apathy

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A car accelerates at 2 m/s2. Assuming the car starts from rest, how much time does it need to accelerate to a speed of 20 m/s? A

Ludmilka [50]

The answer would be
C) 20 seconds.

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3 years ago

Read 2 more answers

Two bodies, with heat capacitiesC1andC2(assumed independent oftemperature) and initial temperatureT1andT2, respectively, are pla

Anna007 [38]

Answer:

Tբ = (C₁T₁ + C₂T₂)/(C₁ + C₂) = (C₁T₁)/(C₁ + C₂) + (C₂T₂)/(C₁ + C₂)

Explanation:

Let's Assume that T₁ > T₂, this means that, T₁ > Tբ > T₂

The zeroth law of thermodynamics explains that two bodies in thermal equilibrium will eventually end up with the same final body temperature.

Heat lost by body 1 = Heat gained by body 2

C₁ (T₁ - Tբ) = C₂ (Tբ - T₂)

C₁T₁ - C₁Tբ = C₂Tբ - C₂T₂

C₁Tբ + C₂Tբ = C₁T₁ + C₂T₂

Tբ(C₁ + C₂) = C₁T₁ + C₂T₂

Tբ = (C₁T₁ + C₂T₂)/(C₁ + C₂)

Tբ = (C₁T₁)/(C₁ + C₂) + (C₂T₂)/(C₁ + C₂)

4 0

3 years ago

Romeo ( mass = 70 kg ) feels a gravitational attraction for Juliet ( mass = 50 kg ). If hey are 20 m apart, find the force.

3241004551 [841]

What even is this question
Love? Idk lol

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3 years ago

Write a short story, the story is to describe a motion activity appropriate for school that contains 2 acceleration segments. Th

fomenos

Im just a slow lil boy that knows nothing

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3 years ago

A satellite moves in a circular earth orbit that has a radius of 7.49 x 106 m. A model airplane is flying on a 24.1-m guideline

mina [271]

Answer:

Explanation:

Given

radius of satellite orbit $r_1=7.49\times 10^6 m$

And orbital velocity is given by

$v=\sqrt{\frac{GM}{r}}$

where M=mass of earth $=5.98 \times 10^{24} kg$

$G=6.67\times 10^{-11}$

$v=\sqrt{\frac{6.67\times 10^{-11}\times 5.98\times 10^{24}}{7.49\times 10^6}$

$v=7.29 \times 10^3 m/s$

centripetal acceleration is given

$a_c=\frac{v^2}{r}$

$a_c=\frac{(7.29\times 10^3)^2}{7.49\times 10^6}$

$a_c=7.095 m/s^2$

For Model airplane

$a_c=\frac{v^2}{r}$

$7.095=\frac{v^2}{24.1}$

$v=\sqrt{170.98}=13.07 m/s$

4 0

4 years ago