4 years ago

I need help please help

1 answer:

5 0

The magnitude is greater since if the fish can swim against the post it has a greater magnitude. to have a greater magnitude is to have a stronger one pushing back.

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If you fire a gun horizontally, and at the same time drop a bullet/slug from the same height, what will happen?

Elena-2011 [213]

Answer:

There you have it. The y-component of air resistance for the fired bullet still depends on the fired speed of the bullet (since it is proportional to v2). A fired bullet (with air resistance) does not hit the ground at the same time as a dropped bullet.

Explanation:

hope this helped ✨

8 0

4 years ago

1. What is the relationship between wavelength and the penetrating power of an electromagnetic wave?

Andreyy89

As we know that energy of electromagnetic wave is given by

$E = \frac{hc}{\lambda}$

so here we know that penetrating power will directly depends on its energy and energy inversely depends on wavelength

So here we can say correct answer will be

C) The penetrating power decreases as the wavelength increases.

Speed of sound is maximum in solids and minimum in gas

so here as ice melts into water the speed of sound must have to decrease

so correct answer will be

D) The speed of sound would decrease because sound travels faster through solids than liquids.

mechanical waves required medium to travel while non mechanical waves do not require any medium to travel

so here correct answer will be

A) sound

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4 years ago

QUESTION 13

inna [77]

The answer is d.heuristic

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3 years ago

Chris is about to do an experiment to measure the density of water at several temperatures. His teacher has him prepare and sign

Marina86 [1]

Inspect the glassware for cracks or chips prior to beginning the lab.

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3 years ago

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A 4.0 kg shot put is thrown with 30 N of force. What is its acceleration?

weeeeeb [17]

7.5 m/s

a = F ÷ m

a = (30 N) ÷ (4.0 kg)

a = 7.5 m/s2

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3 years ago