2 years ago

How many millimeters are in 8 meters?

Physics

1 answer:

frutty [35]2 years ago

3 0

Explanation:

8 m × (1000 mm / m) = 8000 mm

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Answer:

apply more energy to the object with more mass

Explanation:

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2 years ago

An important news announcement is transmitted by radio waves to people sitting next to their radios 42 km from the station and b

Alik [6]

Answer:

news will reach to the listener who are 42 km apart

Explanation:

given,

distance of the radios from the station = 42 Km

speed of the sound in the air = 343 m/s

distance of the people = 9.26 m

$time =\dfrac{distance}{speed}$

time taken by the signal to reach to the radio

speed of the electromagnetic wave to reach to the people

speed of electromagnetic wave = 3 × 10⁸ m/s

$t =\dfrac{42000}{3 \times 10^8}$

t = 1.4 μs

time taken to reach to the people

$time =\dfrac{distance}{speed}$

$t =\dfrac{9.26}{343}$

t = 27 ms

time taken by the station to radio is less.

hence, news will reach to the listener who are 42 km apart

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3 years ago

Which sound characteristic is not affected by the relative motion of an object?

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intensity is the answer. i just got it on the test

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3 years ago

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Answer:

Explanation:

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2 years ago

if a girl is running along a straight road with uniform velocity 1.5 metre per second find the acceleration

PilotLPTM [1.2K]

Answer:

Acceleration is 0.

Explanation:

Since the girl is running with a uniform velocity, meaning she is moving at a constant rate, she is not accelerating. Acceleration only occurs when the speed of an object increases, decreases, or if there is a change in direction.

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3 years ago