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3 years ago

Stronger surface waves cause greater rock motion and more damage True False

Physics

2 answers:

Margarita [4]3 years ago

8 0

This is true because of erosion. The harder the waves hit causes the roock to split and eventually break off.

faltersainse [42]3 years ago

4 0

The answer is true . Strong forces causes damage

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masya89 [10]

Explanation:

The angular momentum is doubled because it is proportional to the angular velocity.

6 0

1 year ago

A 4.5 g coin sliding to the right at 23.8 cm/s makes an elastic head-on collision with a 13.5 g coin that is initially at rest.

Airida [17]

Answer:

a) $v = 11.9\times 10^{-2}\,\frac{m}{s} \,(11.9\,\frac{cm}{s} )$ , b) $\Delta K = 9.559\times 10^{-5}\,J$

Explanation:

a) The final velocity of the 13.5 g coin is found by the Principle of Momentum Conservation:

$(4.5\times 10^{-3}\,kg)\cdot (23.8\times 10^{-2}\,\frac{m}{s} )+(13.5\times 10^{-3}\,kg})\cdot (0\,\frac{m}{s} ) = (4.5\times 10^{-3}\,kg)\cdot (-11.9\times 10^{-2}\,\frac{m}{s} )+(13.5\times 10^{-3}\,kg})\cdot v$

The final velocity is:

$v = 11.9\times 10^{-2}\,\frac{m}{s} \,(11.9\,\frac{cm}{s} )$

b) The change in the kinetic energy of the 13.5 g coin is:

$\Delta K = \frac{1}{2}\cdot (13.5\times 10^{-3}\,kg)\cdot \left[(11.9\times 10^{-2}\,\frac{m}{s} )^{2}-(0\,\frac{m}{s} )^{2}\right]$

$\Delta K = 9.559\times 10^{-5}\,J$

4 0

2 years ago

Read 2 more answers

Question 18 of 25

frozen [14]

The answer would be A transverse

5 0

3 years ago

Magnus has reached the finals of a strength competition. In the first round, he has to pull a city bus as far as he can. One end

ozzi

Answer:

The total work that the rope does to Mangnus is - 5780 Jules.

Explanation:

By definition, the work is defined as:

$W=F.d$

Where F and d are the force and the total displacement. Note that in the definition the product is a scalar product since F and d are both vectors.

Take into account that according to third Newton's law the force that the rope does to Magnus is opposite to the force that Magnus does to the rope, therefore the scalar product will be negative due the rope's force goes against to Magnus displacement.

For calculating the work, we take 2500 N as the value for the force and 2.312 meters as the value for the displacement:

$W=-2500 N * 2.312 m$

$W=-5780 Nm = -5780 J$

7 0

2 years ago

Photochemical smog is characteristic of urban areas with many vehicles and a climate that is ____.

stepladder [879]

The answer is; E

The key word is photochemical smog that differentiated it from industrial smog that are formed from different conditions. Photochemical smog is majorly driven by the sun that splits nitrogen oxide pollutants in the air into nitrogen and oxygen. The oxygen forms OH radicals with the water vapour in the air. The OH forms radicals with hydrocarbons pollutants in the air which ultimately form aldehyde peroxides that are a health risk.

4 0

2 years ago