Physics, 31.03.2020 00:56 davidcortez27
A roller coaster car moves around a vertical circle. At the bottom of the circle, the car experiences four times as much radial (centripetal) acceleration as at the top of the circle. Compared to its speed at the top of the circle, the speed of the car at the bottom of the circle is:
A. four times as great.
B. 16 times as great
C. √2 times as great
D. twice as great
E. 2√2 times as great.
Answers: 2
Physics, 22.06.2019 07:30
Identify the theory that can be used to explain each phenomenon. answers diffraction: wave theory interference: wave theory reflection: both particle and wave theories refraction: both particle and wave theories
Answers: 3
Physics, 22.06.2019 18:30
Abaseball is thrown from the outfield toward the catcher. when the ball reaches its highest point, which statement is true? (a)its velocity is not zero, but its acceleration is zero. (b) its velocity and its acceleration are both zero. (c) its velocity is perpendicular to its acceleration. (d) its acceleration depends on the angle at which the ball was thrown. (e) none of the above statements are true.
Answers: 1
Physics, 22.06.2019 18:30
In the united states, tornadoes generally occur because of the freezing of ocean water underwater earthquakes meeting of cool and warm air masses shifting of warm and cool ocean currents
Answers: 1
Physics, 22.06.2019 18:40
Which body is in equilibrium? (1) a satellite orbiting earth in a circular orbit (2) a ball falling freely toward the surface of earth (3) a car moving with a constant speed along a straight, level road (4) a projectile at the highest point in its trajectory
Answers: 2
A roller coaster car moves around a vertical circle. At the bottom of the circle, the car experience...
Mathematics, 02.03.2021 17:50
Social Studies, 02.03.2021 17:50
Mathematics, 02.03.2021 17:50
Chemistry, 02.03.2021 17:50
English, 02.03.2021 17:50
Mathematics, 02.03.2021 17:50
History, 02.03.2021 17:50
Mathematics, 02.03.2021 17:50
Mathematics, 02.03.2021 17:50
Engineering, 02.03.2021 17:50
Chemistry, 02.03.2021 17:50
Mathematics, 02.03.2021 17:50
Mathematics, 02.03.2021 17:50
Mathematics, 02.03.2021 17:50
English, 02.03.2021 17:50