A student calculates the potential energy of a roller coaster at the top of a hill. Then, she uses the kinetic energy equation to calculate the roller coaster's energy as it reaches the bottom of the hill. The calculations show that the roller coaster's potential energy was slightly greater at the top of the hill than its kinetic energy at the bottom of the hill. Which of the following best explains this difference? A. Energy in moving systems is not always conserved. B. The roller coaster's velocity decreases as it moves downhill. C. The student did not account for energy transformed into heat and sound. D. The gravitational force is greater at the top of a hill than at the bottom.
Answers (1)
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “A student calculates the potential energy of a roller coaster at the top of a hill. Then, she uses the kinetic energy equation to calculate ...” in 📙 Physics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers
You Might be Interested in
Glossopteris is an ancient, extinct species of found in South America, Africa, Asia, Australia, and Antarctica.
Answers (1)
In a circular loop of wire lying on a horizontal floor, the current is constant and, to a person looking downward, has a clockwise direction. The accompanying magnetic field at the center of the circle is directed a) horizontally and to the east.
Answers (1)
Why did alpha particles bounce back
Answers (1)
Which best explains how fiber-optic technology has improved communication? It has eliminated the need to send audio data through telephones. It has allowed for faster transmission of Internet signals.
Answers (1)
In addition to an all-round white light, what light (s) must power-driven vessels less than 65.6 feet (20 meters) long exhibit when underway between sunset and sunrise?
Answers (1)
New Questions in Physics
1. Using Pj = e^-BE/Z in the Gibb's form for the entropy, show that F = kb Tln (Z), where F = U - TS is the Helmholtz free energy. Here Z= e^-BE is the canonical partition function ...
Answers (1)
Modern oil tankers weigh over a half-million tons and have lengths of up to a quarter of a mile. Such massive ships require a distance of 5.0 km (about 3.0 mi) and a time of 22 min to come to a stop from a top speed of 26 km/h.
Answers (1)
Suppose a yo-yo has a center shaft that has a 0.232 cm radius and that its string is being pulled. If the string is stationary and the yo-yo accelerates away from it at a rate of 1.50 m/s 2, what is the angular acceleration of the yo-yo?
Answers (1)
How far into editing our human genes?
Answers (1)
Which electromagnetic wave has the shortest wavelength? (A. Radio waves b. X-rays c. infrared rays or d. Visible light)
Answers (1)