Physics, 05.07.2019 21:30 rosehayden21
1. a ball is thrown horizontally off a building that is 30m high with an initial velocity of 3 m/s . if an identical ball is thrown again horizontally from the same height at a velocity of 6 m/s, what happens to the flight time? a. flight time is doubled b. flight time is cut in half c. flight time is the same d. flight time is exponentially increased 2. where is the vertical velocity of a projectile the smallest? a. right before it hits the ground b. it is constant the entire flight c. at the top of the trajectory
Answers: 1
Physics, 21.06.2019 22:30, ayoismeisjjjjuan
An engineer designs a roller coaster so that a car travels horizontally for 162 ft, then climbs 127 ft at an angle of 31.0° above the horizontal. it then moves 127 ft at an angle of 46.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)
Answers: 1
Physics, 22.06.2019 04:30, johnkings140
The image shows the positions of a car on a roller coaster track. arrange the cars in order based on their gravitational potential energy. begin with the lowest potential energy and end with the highest.
Answers: 1
Physics, 22.06.2019 09:00, keshho
When a bicycle coasts uphill, it moves slower and slower as it climbs. why? a. its kinetic energy is transforming into heat energy. b. its potential energy is transforming into kinetic energy. c. its kinetic energy is transforming into potential energy and heat energy. d. its potential energy is transforming into kinetic energy and heat energy.
Answers: 1
Physics, 22.06.2019 14:00, jessemartinez1
This is one type of line graph in which the independent variable is time plotted on the x axis and the dependent variable, also numerical, is plotted on the y axis.
Answers: 2
1. a ball is thrown horizontally off a building that is 30m high with an initial velocity of 3 m/s ....
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