4 years ago

Please Help! When drawing free-body diagrams, does the label "centripetal force" get used? Explain why.

Physics

1 answer:

kozerog [31]4 years ago

5 0

Explanation:

No. Centripetal force is a not a force itself, but rather a sum of forces. From Newton's second law:

∑F = ma

∑F = m v²/r

So centripetal force does not get used on a free body diagram.

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Identical satellites X and Y of mass m are in circular orbits around a planet of mass M. The radius of the planet is R. Satellit

GrogVix [38]

Answer:

1) C

2) E

Explanation:

3 0

3 years ago

Chapter 21, Problem 43Partially correct answer. Your answer is partially correct. Try again.The 1400-turn coil in a dc motor has

miskamm [114]

Answer:

I = 3.028 A

Explanation:

given,

Number of turns in the coil = N = 1400

Area of DC motor per turn = 1.1 × 10⁻² m²

Maximum torque in motor = 8.4 N.m

Magnetic field in the coil = 0.18 T

Current in the coil = ?

using formula for toque in the magnetic field

τ = N A B I

8.4 = 1400 x 1.1 × 10⁻² x 0.18 x I

$I = \dfrac{8.4}{2.774}$

I = 3.028 A

Current in the coil will be equal to I = 3.028 A

7 0

3 years ago

HELP PLS !!! <br><br> Calculate the total current drawn from the 9-volt battery

cricket20 [7]

Answer:

0.82A

Explanation:

first we resolve the resistors in parallel

i.e 1/R=1/R1+1/R2

=1/R=1/6+1/3

1/R=1/2

R=2/1=2ohms

now we resolve all resistors in series

R=R1+R2+R3

R=6+3+2(the two parallel resistors we resolved are now in series with the others)

R=11ohms

From ohm's law V=IR

I=V/R=9/11= 0.82A.

6 0

2 years ago

Air entering the potential space of the pleural cavity is called

PolarNik [594]

Air entering the potential space of the pleural cavity is called pneumothorax.

4 0

3 years ago

An object has a mass of 4kg and experiences a gravitational force of 40N. If the object experiences no other forces, what will i

ikadub [295]

Answer:

Acceleration,10

Explanation:

First 4kg is your mass,

Second 40N is your force

,so you need your acceleration

The answer is 10 because

F=40N

M=4kg

A=10

You divide 40 out of 4 and you get 10

HOPE THIS HELPS:)

Pls mark brainly

5 0

3 years ago