3 years ago

The unit of electric potential or electromotive force is the

Physics

1 answer:

goldenfox [79]3 years ago

3 0

Answer:

Volt

Explanation:

Electric Potential is the Voltage and it's measured in volt

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An apparatus like the one Cavendish used to find G has large lead balls that are 8.4 kg in mass and small ones that are 0.061 kg

garik1379 [7]

Answer:

The gravitational force is $1.05\times10^{-8}\ N$

Explanation:

Given that,

Mass of large ball = 8.4 kg

Mass of small ball = 0.061 kg

Separation = 0.057 m

Gravitational constant $G= 6.67\times10^{-11}\ Nm^2/kg^2$

We need to calculate the gravitational force

Using formula of gravitational force

$F= \dfrac{Gm_{1}m_{2}}{r^2}$

Put the value into the formula

$F=\dfrac{6.67259\times10^{-11}\times8.4\times0.061}{(0.057)^2}$

$F=1.05\times10^{-8}\ N$

Hence, The gravitational force is $1.05\times10^{-8}\ N$

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3 years ago

1. A car with a mass of 1,500 kilograms is moving around a circular curve at a uniform velocity of 16 m/s. The curve has a radiu

svet-max [94.6K]

<u>Answers</u>

1) 3,840 N

2) 80 m

<u>Explanations</u>

Centripetal force is the force that maintenance objects that are moving in a circular motion.

F = mv²/r

= (1500 × 16²)/100

= (1500×256)/100

= 384000/100

= 3,840 N

2) F = (mv²)/r

6000 N = (1200 × 20²)/r

r = (1200 × 400)/6000

= 480,000/6000

= 80 m

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4 years ago

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A fission reaction is one in which the weaker electrostatic repulsion force wins out over the ___________ nuclear force and, as

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g You are blowing air into a spherical balloon at a rate of 33 cubic inches per second. Given that the radius of the balloon is

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Answer:

$\frac{3}{16\pi}in/sec$

Explanation:

We are given that

$\frac{dv}{dt}=3in^3/s$

r=2 in when t=4 s

We have to find the rate of change of radius.

We know that

Volume of sphere= $V=\frac{4}{3}\pi r^3$

Differentiate w.r.t t

$\frac{dV}{dt}=4\pi r^2\frac{dr}{dt}$

Substitute the values

$3=4\pi(2)^2\times \frac{dr}{dt}$

$\frac{dr}{dt}=\frac{3}{4\pi(2)^2}$

$\frac{dr}{dt}=\frac{3}{16\pi}in/sec$

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3 years ago

When a person blinks what characteristic of living things are you displaying

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