3 years ago

All waves transmit energy. Only one type of wave does not require a medium to transmit energy. That is a _____wave?

Physics

2 answers:

SpyIntel [72]3 years ago

8 0

Sound because it’s that one

Dmitrij [34]3 years ago

6 0

Answer:

sound waves

Explanation:

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Energy is measured in units called

saul85 [17]

Energy is measured in units called joules.

answer: a. joules.

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3 years ago

An atom has seven protons, eight neutrons, and six electrons. What type of electrical charge does it possess?

Crank

Answer:

positive

Explanation:

No. of positive charge= 7

No.of negative charge = 6

so 7 - 6 = 1 positive charge

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3 years ago

1. A pumpkin with a mass of 2 kg accelerates 2 m/s/s when an unknown force is applied to it. What is the amount of the force?

Andreyy89

Answer:

<h3>The answer is 4 N</h3>

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 2 × 2

We have the final answer as

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3 years ago

Nuclide X has a higher rate of decay than nuclide Y. Based on this information, which of the following statements must be true?

marshall27 [118]

Answer: Answer down below.

Explanation:

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2 years ago

A helicopter is ascending vertically. a passenger accidentally drops her wallet out the sides of the helicopter when it is 160 m

Advocard [28]

Answer:

(E)56.0 m/s

Explanation:

Height =h=-160 m

Because the wallet moving in downward direction

Time=t=7 s

Final speed of wallet=v=0

We have to find the speed of helicopter ascending at the moment when the passenger let go of the wallet.

$v^2-u^2=2gh$

Where $g=9.8 m/s^2$

Substitute the values

$0-u^2=2(-160)\times 9.8$

$u^2=3136$

$u=\sqrt{3136}=56m/s$

Option (E) is true

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3 years ago