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Katena32 [7]
3 years ago
9

A baseball is moving at a speed of 2.2\,\dfrac{\text{m}}{\text{s}}2.2 s m ​ 2, point, 2, space, start fraction, m, divided by, s

, end fraction when it strikes the catcher's glove. The padding of the glove is compressed by 2.4\,\text{mm}2.4mm2, point, 4, space, m, m before the ball comes to a stop. We want to find the average acceleration of the baseball while it is compressing the glove.
Physics
1 answer:
Reika [66]3 years ago
5 0

Answer:

 a = 1,008 10⁻³ m / s²

Explanation:

For this exercise, let's use the kinematic relations of accelerated motion

           v² = v₀² - 2 a x

The negative sign is because the acceleration is opposite to the speed, the final speed is zero

          0 = v₀² - 2 a x

          a = v₀² / 2x

   Let's reduce the magnitudes to the SI system

          x = 2.4mm (1m / 10³mm) = 2.4 10⁻³m

Let's calculate

         a = 2.2²/2 2.4 10⁻³

        a = 1,008 10⁻³ m / s²

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When Jacob told his sons to return to Egypt, Judah told his father that they could not return to Egypt without ________.
Ulleksa [173]

Answer:

Benjamin

Explanation:

In the first mission to go and look for food during the time of famine, the ten sons of Jacob went and found their brother serving in Egypt. They were given conditions that in case they were to go back, they should come back with their brother Benjamin. However, when Jacob was told by Judah that they should go with Benjamin back to Egypt, he was reluctant at first to let him also go. This account is found in Genesis chapter 43

8 0
3 years ago
One bright summer day a swimmer is floating with her head just above the surface of a large, clear lake where the water has inde
slavikrds [6]

Answer:

5.38035 m

Explanation:

n_w = Refactive index of water = 1.43

h = Depth = 5.5 m

Critical angle is given by

\theta_c=sin^{-1}\dfrac{1}{n_w}\\\Rightarrow \theta_c=sin^{-1}\dfrac{1}{1.43}\\\Rightarrow \theta_c=44.37^{\circ}

d = horizontal distance from the post where she no longer see the bottom of wooden post

So,

tan\theta_c=\dfrac{d}{h}\\\Rightarrow d=tan\theta_c\times h\\\Rightarrow d=tan44.37\times 5.5\\\Rightarrow d=5.38035\ m

The distance d is 5.38035 m

4 0
3 years ago
Which country has the highest number of beachfront hotels?
boyakko [2]

Answer:

kenya

Explanation:

it's one of the best place to go on vacation

they've got lots of beachfront hotels. Greece, Ireland and Italy can also be included.

4 0
3 years ago
Explain how a crew changes the size of the force needed to push it into wood. 
Stells [14]
They will use pulleys or something with a wheel and axle
7 0
3 years ago
How can you pull a rope with equal but opposite forces
Ivahew [28]
You want to do it all by yourself ?  Nothing to it !

Take a piece of rope that's maybe 12 to 18 inches long.  Take one end
of the rope in each hand, raise your hands up in front of you, and make
like you're trying to stretch the rope.  You'll automatically make the forces
of your hands equal and opposite, so that the rope just stays there in front
of you and doesn't move.
8 0
4 years ago
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