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Leto [7]
3 years ago
5

Plz answer these questions in the worksheet plz help me quickly

Physics
1 answer:
JulsSmile [24]3 years ago
8 0

What is the difference between conventional current and electric current? Electric current is due to the flow of electrons from the negative terminal to the positive terminal. While conventional current is due to the flow of positive charges or holes from the positive terminal to the negative terminal.

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Which number is not rounded correctly?
LekaFEV [45]

B: 210.8 rounded to 210 is totally wrong, and the reason why is because 210.8 rounded to the nearest whole number is 211, not 210. So B is the one with the error (this option is correct) and the other user that said D, is wrong since 18.42 does round to 18.4.

Hope this helped!

Nate

5 0
3 years ago
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A tuning fork vibrates at a frequency of 512 hertz
Naily [24]

Answer: The correct answer is " longitudinal wave with air molecules

vibrating parallel to the direction of travel".

Explanation:

In longitudinal wave, the particles vibrate parallel to the direction to the propagation of the wave. For example, sound wave is a longitudinal wave.

It needs a medium for its propagation. It can travel in solid, liquid and gas. It travel faster in solid in comparison to the liquid.

In the given problem, a tuning fork vibrates at a frequency of 512 hertz  when struck with a rubber hammer. The sound  produced by the tuning fork will travel through air. Here, a longitudinal wave with air molecules vibrating parallel to the direction of travel.

Therefore, the correct option is (1).

4 0
3 years ago
Read 2 more answers
________ is a measure of how many waves pass by in one second.
Sergio [31]
C. Frequency is a measure of how many waves pass by in one second.
4 0
3 years ago
True or false: The jet stream carries cold air to the tropics and warm air to the poles
tensa zangetsu [6.8K]

Answer:

False

Explanation:

i think

6 0
3 years ago
A pitcher exerts 100.0 N of force on a ball with a power output of 4,500 W. What is the velocity of the ball? 0.02 m/s, 45 m/s,
OverLord2011 [107]
Power is defined as the amount of work over a certain amount of time. Work is also Force times the distance traveled. Simplifying the expression makes it Power=Force x Velocity. Since we are given that the power is 4500 W and the force is 100 N, dividing the Power by force gives 45 m/s, which is the velocity of the ball.
6 0
3 years ago
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