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1 year ago

1. What is the current of the circuit with a voltage of 70 V and a resistance of 100

Physics

1 answer:

kupik [55]1 year ago

6 0

Answer:

0.7 amps

Explanation:

<u><em>Assuming that resistance is in ohms units:</em></u>

Current = Voltage / resistance

= 70 / 100

= 0.7 amps

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Answer:

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question

force = 0.49 × 4.8 = 2.352

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3 years ago

A car has a mass off 2,00 kg & is traveling at 28 meters per second. what is the car’s kinetic energy?

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3 years ago

The force needed to keep a car from skidding on a curve varies inversely as the radius of the curve and jointly as the weight of

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Explanation:

It is given that, the force needed to keep a car from skidding on a curve varies inversely as the radius of the curve and jointly as the weight of the car and the square of the car's speed such that,

$F\propto \dfrac{mgv^2}{r}$

$F=\dfrac{kmgv^2}{r}$

mg is the weight of the car

r is the radius of the curve

v is the speed of the car

Case 1.

F = 640 pounds

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Radius of the curve, r = 650 ft

Speed of the car, v = 40 mph

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3 years ago

A spherical balloon with radius r inches has volume V(r) = 4 3 πr3. Find an expression that represents the amount of air require

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3 years ago

A large uniform chain is hanging from the ceiling, supporting a block of mass 46 kg. The mass of the chain itself is 19 kg, and

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Answer:

T = 451.26 N

Explanation:

It is given that,

The mass of block, m = 46 kg

Mass of the chain, m' = 19 kg

Length of the chain, l = 1.9 m

Let T is the the tension in the chain at the point where the chain is supporting the block. It is clearly equal to the product of mass and acceleration.

$T=mg$

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T = 451.26 N

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3 years ago