078-9-474-808
948
FA
6
10 A ball is dropped onto a floor.
Its speed just be...
Physics, 30.05.2021 20:20 deandrehudson18
078-9-474-808
948
FA
6
10 A ball is dropped onto a floor.
Its speed just before hitting the floor is 3.0 m/s.
Which change would result in a speed of 6.0m/s just before hitting the floor?
Ignore any effects due to air resistance.
X Х
A
Drop the ball from double the height above the floor.
B
Drop the ball from four times the height above the floor.
с
Use a ball with double the mass.
D
Use a ball with four times the mass.
Answers: 1
Physics, 22.06.2019 04:00
Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.
Answers: 2
Physics, 22.06.2019 05:30
Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.
Answers: 1
Physics, 22.06.2019 18:30
Ahot-air balloon is 11.0 m above the ground and rising at a speed of 7.00 m/s. a ball is thrown horizontally from the balloon basket at a speed of 9.00 m/s. ignore friction and air resistance and find the speed of the ball when it strikes the ground.
Answers: 1
Physics, 22.06.2019 20:00
What is the name of the perceived change in a sound wave’s frequency due to motion between the observer and the sound source?
Answers: 1
Computers and Technology, 01.10.2019 04:50
Mathematics, 01.10.2019 04:50
Mathematics, 01.10.2019 04:50
Geography, 01.10.2019 04:50
Social Studies, 01.10.2019 04:50
Biology, 01.10.2019 04:50
Mathematics, 01.10.2019 04:50
Social Studies, 01.10.2019 04:50
Mathematics, 01.10.2019 04:50
Geography, 01.10.2019 04:50
Physics, 01.10.2019 04:50
Chemistry, 01.10.2019 04:50
Social Studies, 01.10.2019 04:50
Mathematics, 01.10.2019 04:50
History, 01.10.2019 04:50
Computers and Technology, 01.10.2019 04:50