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bearhunter [10]

2 years ago

7

Clyde and Marilyn are riding a roller coaster. During which section of the track is their potential energy converted to kinetic

energy?

1 answer:

Alex17521 [72]2 years ago

5 0

Potential energy is when the roller coaster rises. Kinetic energy is when the roller coaster declines.

You might be interested in

Which equation best expresses the first law of thermodynamics, assuming Q is heat, U is internal energy, and W is work?

devlian [24]

The first law of thermodynamics is expresses by

D. ΔU=Q-W

which means change in internal energy of system = Heat added to system minus work done by the system

All are expressed in Joules.

This law is based on principle of conservation of energy.

5 0

3 years ago

Read 2 more answers

The perception of high or low sounds is called ____________. 2. The _______________ is a measurement unit for intensity of sound

matrenka [14]

1. pitch

2. decibel

3. sorry, i dont know

4. c

5. acoustics

6 0

2 years ago

"Two rooms are connected by a doorway. You are in one room and your friend is in the other room. Explain why you can hear your f

Masteriza [31]

Answer:

You can hear your friend because of diffraction of sound waves.

Explanation:

Through diffraction of sound waves, the sound waves can bend around the door spaces and spread out through any small opening on the door to reach you in the other room yet the other person is not in a direct line with you.The wavelength of sound waves in this case are longer enough to bend around the obstacle(door and the indirect path) and spread out to reach your room for you to hear your friend without directly being in line with the door for you to see them.

5 0

3 years ago

Read 2 more answers

Scientists are studying a pond. Which property can the scientists measure to understand the amount of energy held by the lake wa

VARVARA [1.3K]

D, the temperature of the lake

5 0

2 years ago

You decide to travel by car for your holiday visits this year. You leave early in the morning to avoid congestion on the roads.

podryga [215]

Answer:

a) d = 182.08 miles

b) $\overline{v} = 54.5 mph$

Explanation:

a) The distance can be found as follows:

$d_{T} = d_{1} + d_{2} + d_{3}$

$d_{T} = v_{1}*t_{1} + v_{2}*t_{2} + v_{3}*t_{3}$

$d_{T} = 67.4 mph*1.70 h + 0*23.4 min + 54.0 mph*1.25 h = 182.08 miles = 292.9 km$

b) The average speed can be calculated using the following equation:

$\overline{v} = \frac{d_{f} - d_{i}}{t_{f} - t_{i}}$

Where "f" is for final and "i" for initial

$\overline{v} = \frac{182.08 miles - 0 miles}{(1.70 h + 23.4 min*\frac{1 h}{60 min} + 1.25 h) - 0 h} = 54.5 mph$

I hope it helps you!

5 0

2 years ago