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3 years ago

What two things does force depend on

Physics

1 answer:

faust18 [17]3 years ago

8 0

Answer:

When dealing with the force of gravity between two objects, there are only two things that are important – mass, and distance or (acceleration)

Explanation:

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A 645-turn coil with a 20.250 m 2 area is spun in Earth’s 5.00×10 −5 T magnetic field, producing a 1.25-V maximum emf. A

Dmitriy789 [7]

Answer:

$\omega = 1.914\ rad/s$

Explanation:

Given,

Number of turns, N = 645 N

Area, A = 20.25 m²

Earth Magnetic field, B = 5 x 10⁻⁵ T

Maximum Emf = 1.25 V.

Angular velocity, ω = ?

Using Induced Emf formula

$\varepsilon = NAB\omega$

$\omega= \dfrac{\varepsilon}{NAB}$

$\omega= \dfrac{1.25}{645\times 20.25\times 5\times 10^{-5}}$

$\omega = 1.914\ rad/s$

Angular velocity of the coil = $\omega = 1.914\ rad/s$

5 0

3 years ago

The corect phase sequence shown

Feliz [49]

Answer:

Explanation:

gas, liquid, soild

liquid, Gas, solid

Gas, Solid, liquid

3 0

3 years ago

What is the fundamental property of matter that can either be positive or negative?

larisa86 [58]

Protons, electrons, and neutrons have electrical charges. Protons are positive. Electrons are negative and neutrons are neutral (no charge).<span />

5 0

3 years ago

4. A car of mass 1200 kg travelling at 20 m/s brakes and comes to rest in 4

rjkz [21]

The car has an average acceleration of

$a_{\rm ave} = \dfrac{\Delta v}{\Delta t} = \dfrac{0\frac{\rm m}{\rm s} - 20\frac{\rm m}{\rm s}}{4\,\mathrm s} = -5\dfrac{\rm m}{\mathrm s^2}$

Then, by Newton's second law, the average force exerted by the brakes on the car is

$F_{\rm ave} = ma_{\rm ave} = (1200\,\mathrm{kg})\left(-5\dfrac{\rm m}{\mathrm s^2}\right) = \boxed{-6000 N}$

which is to say, the average force has a magnitude of 6000 N and is directed opposite the car's motion.

6 0

3 years ago

A bicyclist and a runner are waiting at a red light. When the light turns green they start to speed up and the bicyclist gets to

Svet_ta [14]

Answer:

The acceleration of bicyclist is greater than that of the runner.

Explanation:

It is given that,

Initial speed of both bicyclist and a runner is 0 as they both are waiting at a red light,

When the light turns green they start to speed up.

Final speed of the bicyclist is 20 mph in 5 seconds

The runner gets to a final speed of 11 mph in 3 seconds.

20 mph = 8.94 m/s

11 mph = 4.91 m/s

Acceleration of bicyclist is :

$a_b=\dfrac{v}{t}\\\\a_b=\dfrac{8.94\ m/s}{5\ s}\\\\a_b=1.78\ m/s^2$

Acceleration of runner is :

$a_r=\dfrac{v}{t}\\\\a_r=\dfrac{4.91\ m/s}{3\ s}\\\\a_r=1.63\ m/s^2$

It is clear that the acceleration of bicyclist is greater than that of the runner.

6 0

3 years ago

What two things does force depend on​

What two things does force depend on