Answers: 1
Physics, 21.06.2019 19:00
An object is located 30.0 cm from a concave mirror. the focal length is 15.0 c,. what is the image distance? a. 30.0 cm b. -10 cm c. 10.0 cm d. -30.0 cm
Answers: 1
Physics, 22.06.2019 10:40
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, 23.06.2019 09:20
How does an increase in temperature generally affect the rate of a reaction?
Answers: 3
Physics, 23.06.2019 14:00
What is the potential energy possessed by a rock of mass 4kg projected to a height of 2m (g=10m/s2)
Answers: 1
What would the displacement be if the total distance was 80...
Mathematics, 27.06.2019 09:10
History, 27.06.2019 09:10
Mathematics, 27.06.2019 09:10
Mathematics, 27.06.2019 09:10
Mathematics, 27.06.2019 09:10
Mathematics, 27.06.2019 09:10
Mathematics, 27.06.2019 09:10