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Xelga [282]
3 years ago
13

NEED HELP QUICK PLZ! 51 Points!

Physics
2 answers:
Vesnalui [34]3 years ago
6 0
Mechanical waves transfer energy by inducing vibrations in the propagation medium.
nexus9112 [7]3 years ago
5 0

Electromagnetic waves do not require a medium for propagation, but still transfer energy by having an electric and magnetic field propagate perpendicular to one another.

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The lever shown above can be used to move the
vladimir1956 [14]

Answer:

C your answer would be C

Explanation:

It should be right

4 0
3 years ago
What will change the velocity of a periodic wave?
Georgia [21]
If it's a mechanical wave, then its speed depends on the physical characteristics of the medium.

If it's an electromagnetic wave, then its speed depends on the
electrical characteristics of the medium.

Either way, the properties of the medium determine the wave speed.
You want to change the speed ?  You have to change the properties
of the medium.
7 0
3 years ago
If an 800.-kg sports car slows to 13.0 m/s to check out an accident scene and the 1200.-kg pick-up truck behind him continues tr
Alborosie

Answer: 20.2 m/s

Explanation:

From the question above, we have the following data;

M1 = 800kg

M2 = 1200kg

V1 = 13m/s

V2 = 25m/s

U (common velocity) =?

M1V1 + M2V2 = (M1 + M2). U

(800*13) + (1200*25) = (800+1200) * U

10400 + 30000 = 2000u

40400 = 2000u

U = 40400 / 2000

U = 20.2 m/s

5 0
3 years ago
Read 2 more answers
Difference between dry cell and simple cell​
lakkis [162]

Simple cells have liquid chemicals, making it harder for it to carry. While as dry cells have no liquid chemicals, making it easier to carry.

4 0
3 years ago
A stone is thrown horizontally from the top of a tower at the same instant a ball is droppedvertically. Which object is travelin
Igoryamba

The ball is travelling faster when the two objects hits the level ground below.

<h3>Time of motion of the objects</h3>

The time of motion of the objects depends on height and initial velocity of projection of the objects.

The stone has no initial vertical velocity while the ball has initial vertical velocity.

Thus, the ball is travelling faster when the two objects hits the level ground below.

Learn more about time of motion here: brainly.com/question/2364404

#SPJ1

5 0
2 years ago
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