4 years ago

A radio operating at 3.0 volts and a constant

1 answer:

3 0

We can do this using V=IR

Substituting values in we get 3 = (1.8x10^-4) x R
R=3/0.00018
R=16666 = 17000 to 2sf

Therefore, the resistance of the radio circuit is 1.7x10^4 Ohms

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Which of the following has the least resistance? wood iron copper silver

Neporo4naja [7]

Answer:

Probably wood

Explanation:

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3 years ago

An object with a mass of 70 kilograms is supported at a height of 8 meters above the ground, what's the potential energy of the

Olegator [25]

Answer:

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Explanation:

Use the formula for the potential energy:

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Answer:

$F = 4.3671 * 10^{-8}\ Newtons$

Explanation:

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5 0

3 years ago

Which equation can be used to solve for acceleration?

antoniya [11.8K]

A = d/t
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3 0

4 years ago

Read 2 more answers

2. A brick is sitting on a building 22 m high. It has a mass of 7.9 kg. What amount of potential

Citrus2011 [14]

Answer:

1703.24J

Explanation:

Given parameters:

Mass of brick = 7.9kg

Height of building = 22m

Unknown:

Potential energy of the brick = ?

Solution:

The potential energy of a body is the energy at rest of the body. Mathematically;

P.E = mgh

m is the mass of the brick

g is the acceleration due to gravity

h is the height of the building

Insert the given parameters and solve;

P.E = 7.9 x 9.8 x 22 = 1703.24J

6 0

3 years ago