3 years ago

The amount by which a machine multiplies an input force is called the ____.

1 answer:

4 0

When a <span>a machine multiplies an input force, that's called a mechanical advantage. Therefore letter C would be your answer. :)

Hope that helps. -UnicornFudge aka Nadia</span>

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A cat with a mass of 4.50 kilograms sits on a ledge 0.800 meters above the ground. If it jumps to the ground, how much kinetic e

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Answer:

The cat will have <span>36J</span> of kinetic energy.

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3 years ago

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A certain car traveling at 97 km/h can stop in 47 m on a level road find the coefficient of friction

IrinaVladis [17]

The coefficient of friction between the road and the car's tire is determined as 0.78.

<h3>Acceleration of the car</h3>

The acceleration of the car is calculated as follows;

v² = u² - 2as

0 = u² - 2as

a = u²/2s

where;

u is the initial velocity = 97 km/h = 26.94 m/s

a = (26.94)²/(2 x 47)

a = 7.72 m/s²

<h3>Coefficient of friction</h3>

μ = a/g

μ = (7.72)/9.8

μ = 0.78

Learn more about coefficient of friction here: brainly.com/question/14121363

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2 years ago

provides one model for solving this problem. The maximum strength of the earth's magnetic field is about 6.9 x 10-5 T near the s

jeka57 [31]

Answer:

The minimum no. of turns is $3.126 \times 10^{5}$

Explanation:

Given:

Magnetic field $B = 6.9 \times 10^{-5}$ T

Frequency $f = 84.5$ Hz

Area of turn $A = 0.021$ $m^{2}$

Voltage $V_{rms} = 170$ V

From the formula of induced emf,

$V = NBA \omega$

Where $\omega = 2\pi f$ and $V = \sqrt{2} V_{rms}$

So number of turn is,

$N = \frac{\sqrt{2} V_{rms} }{AB2\pi f }$

$N = \frac{\sqrt{2} \times 170 }{0.021 \times 6.9 \times 10^{-5} \times 6.28 \times 84.5 }$

$N = 3.126 \times 10^{5}$

Therefore, the minimum no. of turns is $3.126 \times 10^{5}$

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3 years ago

What best describes the motion of particles in the solid state

dimulka [17.4K]

The particles vibrate against each other in a soild state........i think

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3 years ago

HELPPPPPP ! Pleaseeee anyone ?

kenny6666 [7]

Answer:

1 Periodic table

2 Elements

3 atomic number

4 properties

5 Periods

6 groups

7 group number

8 Valence electrons

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