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2 years ago

A 2 kg book is pushed across a table is a force 4. Assuming no friction, what is the acceleration of the book?

Physics

1 answer:

murzikaleks [220]2 years ago

4 0

Apply Newton's second law:

F = ma

Given values:

m = 2kg

F = 4N

Substitute the terms in the equation with the given values and solve for a:

4 = 2a

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An astronaut who is repairing the outside of her spaceship accidentally pushes away a 92.9 cm long steel rod, which flies off at

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Answer:

V = 0.0723 volts = 72.3 milivolts

Explanation:

The emf induced in the rod is the motional emf due to the magnetic field. This motional emf can be calculated by the following formula:

$EMF = V = vBl Sin\theta$

where,

V = Motional EMF = ?

v = speed of rod = 12.5 m/s

B = Magnetic Field = 6.23 mT = 0.00623 T

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Therefore,

$V = (12.5\ m/s)(0.00623\ T)(0.929\ m)Sin\ 90^o\\$

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2 years ago

What is definition of population?

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3 years ago

what is the desnity of a material that has 2500 grams and a volume of 500 cubic centimeters in grams per cubic centimeter

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Divide 2500 g by 500 cc. The quotient is 5 g/cc ... the density.

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3 years ago

A car can move from rest to 35 m/s in 5.0 seconds. It's acceleration is

lord [1]

Answer:

A) 7.0 m/s²

Explanation:

Acceleration is found by using the formula:

a = Δv/Δt

This means the change in time divided by the time interval will give us the car's acceleration.

Since the car starts from rest, its initial velocity is 0 m/s. Its final velocity is 35 m/s. The time interval for the car to go from 0 to 35 m/s is 5.0 seconds.

a = (v - v₀)/t

Substitute the final and initial velocity into the formula.

a = (35 - 0)/5
a = 35/5
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2 years ago