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oee [108]
3 years ago
8

A person tosses a ball from the ground up into the air at an initial speed of 10 m/sec and an initial angle of 43◦ off the groun

d. after the ball is released, what is the total acceleration vector acting on the ball when the ball is at the top of its arc? 1. 9.8 m/s2 , down 2. none of these 3. 9.8 m/s2 , up 4. zero 5. 9.8 m/s2 , in the horizontal direction
Physics
1 answer:
Feliz [49]3 years ago
7 0
Just try your best best friend everyone
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Whenever Dylan walks into his room, his roommate loudly blows an air horn, which startles Dylan. Dylan doesn't think this is fun
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Answer:

stimuli

Explanation:

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3 years ago
The force that probably propels the movement of the earth s gigantic rock plates is
il63 [147K]

The correct answer is:

c. convection.

The heating of magma and the continuous cycle of evolution of the magma creating a convection current is the reason for the evolution of Earths tectonic plates.

Explanation:

Tectonic plates are ready to move because the Earth's lithosphere has higher strength than the underlying asthenosphere. Lateral density changes in the mantle appear in convection. Plate movement is believed to be driven by a succession of the motion of the seafloor apart from the extended ridge (due to variations in topography and density of the crust.

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Help me come up with a tittle for a science fair project. I am doing how different voltages affect the brightness of a ligjtbulb
ser-zykov [4K]

Answer:

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3 years ago
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Due to the earth's rotation, a person would be traveling faster at the equator than they would at a position halfway from the eq
Kisachek [45]

Answer:

False

Explanation:

It is actually the exact opposite.

8 0
2 years ago
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you are hiking along a river and see a tall tree on thhe opposite bank. You measure the angle of elevation of the top of the tre
Sidana [21]

Answer:

Explanation:

Let the height of the tree is y and the distance of tree from point B is x.

According to the diagram

tan61 = \frac{y}{x}

x = 0.55 y ..... (1)

tan49.5 = \frac{y}{50+x}

(50 + 0.55y) 1.17 = y ..... from equation (1)

58.5 + 0.644 y = y

0.356 y = 58.5

y = 164.3 ft

3 0
3 years ago
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