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3 years ago

Calculate the Earth's linear momentum, in kilogram meters per second.

Physics

1 answer:

Irina18 [472]3 years ago

4 0

The sun orbits the eth at 2kilogram per sec

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The hypotenuse of a right triangle is 29.0 centimeters. The length of one of its legs is 20.0 centimeters. What is the length of

Kisachek [45]

square root (29 squared - 20 squared)

Pythagoras' theorem

5 0

2 years ago

Read 2 more answers

Two identical resistors connected in series have an equivalent resistance of 4 ohms. The same two resistors, when connected in p

irina1246 [14]

Answer:

1 ohm

Explanation:

since there are two identical resistors, one resistor will be

R = $\frac{4}{2}$ =2ohm [ proven as in series $R_{e} = 2 + 2 = 4ohm$ ]

to calculate the equivalent resistance when in parallel:

$\frac{1}{R_{e} } = \frac{1}{R_{1} } + \frac{1}{R_{2}}$

so,

$\frac{1}{R_{e} } = \frac{1}{2} + \frac{1}{2}$

$R_{e} = 1ohm$

4 0

2 years ago

An 4.0-kg fish pulled upward by a fisherman rises 1.9 m in 2.4 s, starting

mina [271]

Answer:

2.64N

Explanation:

Force = mass * acceleration

Given

mass = 4kg

distance = 1.9m

Time t = 2.4s

Get the acceleration using the equation of motion

S = ut + 1/2at²

1.9 = 0 + 1/2a(2.4)²

1.9 = 5.76a/2

1.9 = 2.88a

a = 1.9/2.88

a = 0.66m/s²

Get the magnitude of the force

Force = 4 * 0.66

Force = 2.64N

Hence the net force acting on the fish is 2.64N

5 0

2 years ago

What type of electromagnetic wave can be used to transmit information?

JulijaS [17]

Radio wave only would be the answer.

5 0

3 years ago

Stunt car A and stunt car B are identical cars with the same mass of 35.9 kg. They are both traveling at 37.1 m/s. Stunt car A c

frez [133]

Answer:

<h2>Stunt car A and stunt car B are identical cars with the same mass of 35.9 kg. They are both traveling at 37.1 m/s. Stunt car A crashes into a hard concrete wall, whereas stunt car B crashes into a big soft mattress. They both come to a complete stop after the impact.Stunt Car A experiences a LARGE FORCE over a SHORT PERIOD of time. Stunt Car B experiences a SMALL FORCE over a LONG PERIOD of time. Because of the force experienced by Stunt Car A, it will sustain MORE damage than Stunt Car B.</h2>

Explanation:

As we know that force is given as rate of change in momentum

so it is defined as

$F = \frac{dP}{dt}$

so here we know that both the cars are identical and both are moving with same speed so after coming to rest both the cars have same change in momentum

while Car A will experience more force because due to collision with concrete wall the time of collision is very small as compared to Car B

So Force on Car A is more than the force on Car B

8 0

2 years ago