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2 years ago

8

Which example best matches the term refraction? (17 Points)

1 answer:

Katyanochek1 [597]2 years ago

8 0

Answer:

B

Explanation:

Just answerd that question!!!

<u><em>Hope it helped!!!</em></u>

.

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A 750-kg automobile is moving at 16.8 m/s at a height of 5.00 m above the bottom of a hill when it runs out of gasoline. The car

anygoal [31]

Answer:h=19.4 m

Explanation:

Given

mass of automobile $m=750\ kg$

Initial height of automobile $h_o=5\ m$

Velocity at this instant $v=16.8\ m/s$

If the car stops somewhere at a height $h$

Thus conserving total energy we get

$K_i+U_i=K_f+U_f$

$\frac{1}{2}mv^2+mgh_o=\frac{1}{2}m(0)^2+mgh$

$\frac{v^2}{2g}+h_o=h$

$h=5+\frac{16.8^}{2\times 9.8}$

$h=5+14.4$

$h=19.4\ m$

6 0

3 years ago

Which of the following will increase the force of gravity between two charged objects without affecting the electric force?

jasenka [17]

Answer:

I believe the answer is D

Explanation:

3 0

3 years ago

Find the mass of an object if a 40 N of force causes the object to accelerate at 5.5 m/s/s

Murrr4er [49]

Answer:

<h3>The answer is 8 kg</h3>

Explanation:

The mass of the object can be found by using the formula

$m = \frac{f}{a} \\$

f is the force

a is the acceleration

From the question we have

$m = \frac{40}{5} \\$

We have the final answer as

<h3>8 kg</h3>

Hope this helps you

7 0

3 years ago

If 100 kg person weighed 400 N on the planet Zorg,

Brut [27]

Answer:

<u>4 m/s²</u>

Explanation:

<u>Formula</u>

Weight = Mass x Gravity due to acceleration

<u>Solving</u> :

400 N = 100 kg x g
g = 400/100
g = <u>4 m/s²</u>

5 0

2 years ago

Read 2 more answers

The left side of the lever was forced down 10 inches in order to raise the rock 7 inches. The ideal mechanical advantage is

Yanka [14]

Answer:

1.42

Explanation:

<em> got it right on my homework </em>

6 0

2 years ago