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2 years ago

A hiker walks 11 km due north from camp and then turns and walks due east. The

Physics

1 answer:

motikmotik2 years ago

4 0

Answer:

Thats probably 11

Explanation:

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Which types of atoms usually become negative ions?

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Non metal ions gain electrons to become negative ions

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3 years ago

In 1949, an automobile manufacturing company introduced a sports car (the "Model A") which could accelerate from 0 to speed v in

Fudgin [204]

Answer: $\frac{P_B}{P_A}$ = 8.5264

Explanation: Power is the rate of energy transferred per unit of time: P = $\frac{E}{t}$

The energy from the engine is converted into kinetic energy, which is calculated as: $KE = \frac{1}{2}.m.v^{2}$

To compare the power of the two cars, first find the Kinetic Energy each one has:

K.E. for Model A

$KE_A = \frac{1}{2}.m.v^{2}$

K.E. for model B

$KE_B = \frac{1}{2}.m.(2.92v)^{2}$

$KE_B = \frac{1}{2}.m.8.5264v^{2}$

Now, determine Power for each model:

Power for model A

$P_{A}$ = $\frac{m.v^{2} }{2.t}$

Power for model B

$P_B = \frac{m.8.5264.v^{2} }{2.t}$

Comparing power of model B to power of model A:

$\frac{P_B}{P_A} = \frac{m.8.5264.v^{2} }{2.t}.\frac{2.t}{m.v^{2} }$

$\frac{P_B}{P_A} =$ 8.5264

Comparing power for each model, power for model B is 8.5264 better than model A.

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2 years ago

What is the name of the upward force that enables a bird to fly?

blagie [28]

What is the name of the upward force that enables a bird to fly?
A. Lift

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3 years ago

if the speed of sound through the air is rounder 80 meters per second what will be the change in temperature of the air

d1i1m1o1n [39]

hope it is if the speed in air is larger by 80m/s what is change in temperature.

Explanation:

hope this helps you

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