Physics, 21.01.2021 01:00, patricklap4951
Light travels in a straight line at a constant speed of 3,0 x 108 m/s for 4,1
years to reach the earth from the nearest star 3.9 x 10"3 km away. What is
its acceleration?
Answers: 2
Other questions on the subject: Physics
Physics, 22.06.2019 01:30, chloe1107
Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.
Answers: 1
Physics, 22.06.2019 10:40, rainbowboi
As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.
Answers: 1
Physics, 22.06.2019 16:40, odalysesquermon
The force needed to overcome static friction is usually less than that needed to overcome kinetic friction. true or false?
Answers: 1
Do you know the correct answer?
Light travels in a straight line at a constant speed of 3,0 x 108 m/s for 4,1
years to reach the ea...
Questions in other subjects:
Mathematics, 25.03.2020 20:22
Advanced Placement (AP), 25.03.2020 20:22
Business, 25.03.2020 20:22
Mathematics, 25.03.2020 20:22
