Answer:
A. They can transfer energy through a vacuum
C. They vibrate in two directions that are perpendicular to each other
D. They radiate outward in all directions
Explanation:
Explanation:
Average acceleration is change in velocity over time.
a = Δv / Δt
a = (22.0 m/s − (-25.0 m/s)) / 0.00350 s
a = 13,400 m/s²
Newton's first and second laws of motion both do, but I think the one you're looking for is: <em>The First Law of Motion</em>. That description is a little more direct.
It says that if an object is not acted on by a net external force, then it continues in "constant, uniform motion".
Answer:
20kg
30kg
60kg
120kg
since weight is mass x force,
and gravitational force in earth is 10N;
mass will me weight/force
Explanation:
The velocity of the rode at the end of the time 4.33 seconds is 42.434 m/s.
<h3>What is velocity?</h3>
Velocity is the rate of change of displacement.
To calculate the velocity of the, we use the formula below.
Formula:
- v = u+gt................. Equation 1
Where:
- v = Velocity at the end of the time
- u = Initial velocity
- g = Acceleration due to gravity
- t = Time
From the question,
Given:
- u = 0 m/s (From rest)
- g = 9.8 m/s²
- t = 4.33 seconds
Substitute these values into equation 1
- v = 0+9.8×4.33
- v = 42.434 m/s
Hence, the velocity at the end of the time is 42.434 m/s.
Learn more about velocity here: brainly.com/question/6504879
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