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LenaWriter [7]
3 years ago
11

A man throws a ball vertically upward with an initial speed of 20m/s. What is the maximum height reached by the ball and how lon

g does it take to return to the point it was thrown?​
Physics
1 answer:
Luba_88 [7]3 years ago
8 0

Answer:

It's your first question!!!

Explanation:

Enjoy it!!!

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The lengths of two sides of a right triangle are given.Find the length of the third side. Round to the nearest tenth if necessar
BARSIC [14]

Answer:

14.6

Explanation:

You need the equation a^{2} +b^{2} = c^{2}

both legs can be "a" or "b" the hypotenuse is "c"

insert what you know in this equation then solve for the unknown.

34^{2} +b^{2} = 37^{2} \\1156+b^{2} = 1369\\b^{2}=213\\

now to cancel out the square you take the square root of both sides giving you: 14.6

4 0
3 years ago
What force is acting on a 2 kg apple falling on the Earth (g = 10)?
Korvikt [17]

Answer:

<em>D. 20 N</em>

Explanation:

<em>Force</em><em> </em><em>=</em><em> </em><em>mass(</em><em>m)</em><em> </em><em>×</em><em> </em><em>acceleration</em><em> due</em><em> to</em><em> </em><em>gravity (</em><em>g)</em>

<em>Force </em><em>=</em><em> </em><em>2</em><em>k</em><em>g</em><em> </em><em>×</em><em> </em><em>1</em><em>0</em><em>m</em><em>/</em><em>s²</em>

<em>Force</em><em> </em><em>=</em><em> </em><em>2</em><em>0</em><em>N</em>

5 0
2 years ago
Calculate the gravity field at the surface of the Sun.
Alenkinab [10]

Answer:

The force of gravity is the gravitational constant multiplied by the mass of the sun times the mass of the person divided by the radius of the sun squared. We can equate these two. The mass of the person cancels.

7 0
3 years ago
Two sound waves of equal amplitude interference so that compression of one wave falls on the rarefaction of the other. Which sta
iris [78.8K]
<span>A. No sound is heard 
A*sin(wt)+(-A)*sin(wt)=0 - no sound

</span>
3 0
3 years ago
An object is at x = 0 at t = 0 and moves along the x axis according to the velocity–time graph in Figure P2.50.(a) What is the o
bezimeni [28]
Picture? I may be able to answer if you have a chart or some kind of graph as a referral to the question
8 0
3 years ago
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