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3 years ago

What is Potentiometer

Physics

1 answer:

Katena32 [7]3 years ago

3 0

Answer:

an instrument for measuring an electromotive force by balancing it against the potential difference produced by passing a known current through a known variable resistance.

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A car's bumper is designed to withstand a 6.84 km/h (1.9-m/s) collision with an immovable object without damage to the body of t

PilotLPTM [1.2K]

Answer:

859.07 N

Explanation:

u = Initial velocity = 1.9 m/s

v = Final velocity

s = Displacement = 0.165 m

a = Acceleration

m = Mass = 890 kg

Equation of motion

$v^2-u^2=2as\\\Rightarrow a=\frac{v^2-u^2}{2s}\\\Rightarrow a=\frac{0^2-1.9^2}{2\times 0.165}\\\Rightarrow a=-10.93\ m/s^2$

Force

$F=ma\\\Rightarrow F=870\times -10.93\\\Rightarrow F=859.07\ N$

The magnitude of the average force on the bumper is 859.07 N

4 0

3 years ago

In the graph, which two regions show the particle undergoing zero acceleration and negative acceleration respectively?

GuDViN [60]

when velocity and time both are constant and when velocity will decrease the acceleration will be negative

7 0

3 years ago

The weight of an object on a planet depends not only on its mass but also on its distance from the planets center this table lis

Korvikt [17]

You just pointed out that the gravitational force also depends
on the distance from the planet's center. The radius of Uranus
is about 4 times the Earth's radius. That fact alone means that
the gravitational force on the surface is 1/4² = 1/16 its value on
Earth's surface. So increasing the planet's mass by a factor of
14 doesn't compensate for the 1/16 reduction, and the gravitational
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3 years ago

Two blocks of masses 20 kg and 8.0 kg are connected togetherby

Dmitry [639]

Answer:

The tension is 14 N

Explanation:

For this problem we have to use newton's law, so:

$F=m*a$

The second string is connected to the mass of 8 kg, but the mass of 8 kg is connected to the mass of 20kg, so we can say that the second string is handling the two masses. so:

$F=28kg*0.5\frac{m}{s^2}=14N$

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3 years ago

Will mark BRAINLYEST

Zarrin [17]

Answer:

A. shin guards is that answer

6 0

3 years ago

What is Potentiometer ​

What is Potentiometer