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andrezito [222]
3 years ago
7

What is the frequency of a sound wave commonly called?

Physics
1 answer:
WARRIOR [948]3 years ago
3 0
Frequency of a sound wave is commonly referred to as  pitch. That is the specialized name for frequency of a sound wave.

Just remember it as pitch.


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Drake lifted a couch a height of 0.2 meters in 1.3 seconds. He did 300 j of work. how much power did drake use?
Novosadov [1.4K]

Answer:

c is correct

Explanation:

I hope this helps.

6 0
2 years ago
A hand moves a block vertically upward. Its speed slows down as it moves up (it is decelerating). The work done by gravity on th
Nataly_w [17]

Answer:

a. negative

b. zero

Explanation:

work is the change in the energy of a system due to external forces

work is done when a force moves a load through a distance in the direction of the force

The work done by a force on a  system is positive when the force  and the force displacement point  in the same direction and negative  when they point in opposite  directions

in the scenario we are considering in the question, the force (the hand) moves the block vertically upwards but the displacement of the block reduces (in the opposite direction) since it decelerates. as such the work done by gravity on the block is negative.

the work done on the block is zero if the system consists of the block and the earth because there is no gravitational force exerted on the system

5 0
3 years ago
Help please I'll mark as brainliest for the first correct answer​
Alenkinab [10]

Answer:

first one i think is this. work = 1/2 kx^2 = 1/2 Fx

2nd, is 0.08 J

Explanation:

EE = ½ kx²

EE = ½ (400 N/m) (0.02 m) ²

EE = 0.08.

THIRD, Velocity of the stone is 4 m/s when it leaves catapult.

3 0
3 years ago
How does the mass of something affect the potential energy?
jonny [76]
 Mass is <span>is a dimensionless quantity representing the amount of matter in a particle or object. The more mass something has, the more energy is used to lift it.</span>
7 0
3 years ago
A 3 Volt battery is connected in series to three resistors: 4, 6, and 2
DanielleElmas [232]

Answer:

Explanation:

   

7 0
3 years ago
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