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3 years ago

8

Astronomers use radio waves to learn about the universe. Radio waves travel light-years through space before reaching Earth. Rad

io waves must be which type of wave

1 answer:

IrinaVladis [17]3 years ago

4 0

Electromagnetic wave, a transverse wave

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Using the data table to the right, determine the

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What is the total kinetic energy of a 0.15 kg hockey puck sliding at 0.5 m/s and rotating about its center at 8.4 rad/s

AlexFokin [52]

Answer:

$K=0.023J$

Explanation:

From the question we are told that:

Mass $m=0.15$

Velocity $v=0.5m/s$

Angular Velocity $\omega=8.4rad/s$

Generally the equation for Kinetic Energy is mathematically given by

$K=\frac{1}{2}M(v^2+\frac{1}{2}R^2\omega^2)$

$K=\frac{1}{2}0.15(0.5^2+\frac{1}{2}(0.038)^2.(8.4rad/s^2))$

$K=0.023J$

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2 years ago

an airplane is taking off from an airport with velocity of 200 km/h at an angle of 30 degrees above horizontal how fast is its r

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A car moves 20 km towards the North and then 35 km at an angle of 60o towards west of North. Its magnitude of displacement from

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Answer:

15

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2 years ago

After the same car leaves the platform, gravity causes it to accelerate downward at a rate of 9.8 m/s2. What is the gravitationa

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The gravitational force on the car is

(9.8 m/s^2) x (the car's mass in kg).

The unit is newtons.

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3 years ago