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mart [117]
2 years ago
10

Explain what is happening when roller coaster is at each point. **The roller coaster has started at A and goes to D.

Physics
1 answer:
yaroslaw [1]2 years ago
3 0

Answer:

At point A, the cart has high potential energy. At point b, the cart is pulled down by gravity. At point c, the cart gains its highest kinetic energy. At point d, the cart returns back to the same state but with lower potential energy.

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The stem of thermometer is made by thick glass and the bulb is made by thin glass, Why?​
Svet_ta [14]

Answer:

The reason is to allow the thermometer to respond relatively quickly, and relatively accurately. The glass contains the liquid being used in the thermometer, but if it is too thick, then it will not pass heat as quickly, and it will absorb some of the heat from whatever is being measured.

Explanation:

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7 0
3 years ago
When do surface waves reach land​
Alex_Xolod [135]

Answer:

Surface waves are the kind of waves that occur on the surface of the ocean. The reason behind their occurrence is the geological effects, usually in the form of winds in near geographical regions or in that region.

These waves reach the land when the geological winds give a push to the waves and they travel miles and finally hit the land. These waves range in sizes, for small sizes to the the size of tsunami.

7 0
3 years ago
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Which conclusion can be made based on the information in the table?
Sergeeva-Olga [200]

Answer:

The correct option is (b).

Explanation:

The relation between the wavelength and frequency is given by :

\lambda=\dfrac{v}{f}

Where

v is the wave speed

f is the frequency of a wave

It is clear from the above equation that the wavelengths and frequency can vary inversely to produce the same wave speed.

6 0
3 years ago
If a resultant vector is 12 m/s and the horizontal component is 9 m/s, what is the value of the vertical component? A. 5.8 m/s B
horrorfan [7]

The vertical component is B) 7.9 m/s

Explanation:

A vector can be resolved into its horizontal and vertical components. The horizontal and the vertical components form the sides of a right triangle, in which the resultant corresponds to the hypothenuse, so we can use Pythagorean's theorem:

R=\sqrt{R_x^2+R_y^2}

where

R is the resultant vector

Rx is the horizontal component

Ry is the vertical component

In this problem, we have:

R = 12 m/s is the resultant vector

Rx = 9 m/s is the horizontal component

Solving the formula for Ry, we find the vertical component:

R_y = \sqrt{R^2-R_x^2}=\sqrt{12^2-9^2}=7.9 m/s

Learn more about vector components:

brainly.com/question/2678571

#LearnwithBrainly

3 0
3 years ago
When a lift is at the highest level it has the most ?
Olegator [25]

Answer:

kinetic energy

Explanation:

that I think

6 0
3 years ago
Read 2 more answers
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