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AlexFokin [52]
3 years ago
7

Some scientists believe that:

Physics
2 answers:
lbvjy [14]3 years ago
8 0
The answer would be a
konstantin123 [22]3 years ago
6 0

answer:

minerals have alot to deal with pressure and the moving of land masses and erosin is common when the land moves

Explanation:

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Which of the following gases are the heaviest? <br> O2, CH4, CO2, Cl2
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the answer is

CI2 because its 70.


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3 years ago
10. A hockey puck with mass 0.3 kg is sliding along ice that can be considered frictionless. The puck’s velocity is 20 m/s when
SVEN [57.7K]

Answer:

d = \frac{v^2_i}{2a}= \frac{(20m/s)^2}{2* 3.43 m/s^2}=58.309m

Explanation:

For this case  we can use the second law of Newton given by:

\sum F = ma

The friction force on this case is defined as :

F_f = \mu_k N = \mu_k mg

Where N represent the normal force, \mu_k the kinetic friction coeffient and a the acceleration.

For this case we can assume that the only force is the friction force and we have:

F_f = ma

Replacing the friction force we got:

\mu_k mg = ma

We can cancel the mass and we have:

a = \mu_k g = 0.35 *9.8 \frac{m}{s^2}= 3.43 \frac{m}{s^2}

And now we can use the following kinematic formula in order to find the distance travelled:

v^2_f = v^2_i - 2ad

Assuming the final velocity is 0 we can find the distance like this:

d = \frac{v^2_i}{2a}= \frac{(20m/s)^2}{2* 3.43 m/s^2}=58.309m

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3 years ago
As a compass finds the northern direction which of the following is it aligning with
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It would be aligning with the north pole. 
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This theorist believed childhood experiences shape our personalities and behavior as adults.
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Yes this is indeed true
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What is the speed of a wave with a wavelength of 10 mm and a frequency of 5.0 Hz?
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Speed = wavelength × frequency
speed = 10/1000 × 5.0
speed = 0.001 × 5.0
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3 years ago
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