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horrorfan [7]
3 years ago
15

At which position is the roller coaster car's amount of potential energy about equal to the amount of kinetic energy?​

Physics
2 answers:
meriva3 years ago
7 0
It will be potential because the roller coaster is going down so it’s not giving off energy to the roller coaster.
Evgesh-ka [11]3 years ago
6 0

Answer:

The mass of the cars and people and the height of the track where the cars are located determine the potential energy in the system. Potential energy depends on an object’s mass and height and the gravitational pull on the object. A change in gravity would result in a change in potential energy. For example, if the track were located on the Moon instead of Earth, the potential energy would be different.

Explanation:

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Imagine that there is no friction for a day .Make a list if things that it would not be possible for you do.Which things would s
son4ous [18]

Answer:

Friction stops things from sliding apart. If there was no friction everything would slide to the lowest point. It would be impossible to climb up anything. Imagine trying to climb a wall of ice without crampons and an ice pick. It would be impossible. From the human perspective, it would be impossible to stand up or even move. Simply crawling requires a force to make you move. That is provided by friction. With no friction, the only possible movement would be falling to a lower point under gravity.

Explanation:

5 0
3 years ago
Read 2 more answers
A friend returns to the United states from Europe with a 960 W coffee maker, designed to operate from a 240 V line. What can she
Paladinen [302]

Answer:

\frac{N_2}{N_1}= 2

Explanation:

From the question we are told that:

Power W=960W

Voltage V=240v

USA-standard V_{usa}=120 V

Applying A step down transformer

Generally the equation for a Transformer is mathematically given by

 \frac{v_2}{v_1}c=\frac{N_2}{N_1}

 \frac{N_2}{N_1}=\frac{240}{120}

 \frac{N_2}{N_1}= 2

Therefore

She can use a turns ratio of 2

8 0
3 years ago
A driver of a car traveling 14.6 m/s must slam on the brakes to avoid hitting a black bear crossing the road. If it takes 3.00 s
SVETLANKA909090 [29]

Answer:

a = (V2 - V1) / t = (0 - 14.6) / 3 = -4.87 m/s^2

It might be useful to convert 14.6 m/s to mph

14.6 m/s * 39.37 in/m = 575 in /s

575 in/s / 12 in/ft = 47.9 ft/sec

47.9 ft/s / 88 ft/sec *  60 mph = 32.6 mph

7 0
3 years ago
If a road does not have a bicycle lane, where must a bicyclist ride their bicycle?
DIA [1.3K]
A bicyclist can ride their bicycle still on the road. Bicycle riders be able to take the public ways which has the similar rights and accountability as motorists and are subject to the same guidelines and protocols. The law says that individuals who ride bikes should ride as nearby to the right side of the road as likely excluding under the following conditions: when passing, preparing for a left go, evading risks, if the lane is too constricted to share, or if oncoming a place where a right turn is approved. In a road which has a bike lane the bicyclists roving slower than road traffic must custom the bike way excluding when creating a left turn, passing, evading hazardous settings, or impending a place where a right turn is approved. 
5 0
4 years ago
URGENT PLEASE ANSWER THIS ASAP I WILL MARK YOU THE BRAINLIEST !!!
kykrilka [37]

Answer:

C would be the answer

Explanation:

Hope this helps! :)

5 0
3 years ago
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