URGENT A person tries to lift each object with a force of 25 N, upward. Which statement is supported by the data in the table?
A. Objects 1 and 3 will move downward, and objects 2 and 4 will
move upward.
B. None of the objects will move, but the normal force on all of the
objects will increase.
C. Objects 1 and 3 will not move, and objects 2 and 4 will accelerate
upward
D. All of the objects will move, but object 1 will accelerate the
slowest

What would be the result of an alpha particle coming into a magnetic field? a) the alpha particle will stop moving. b) the alpha particle will reverse its direction. c) the alpha particle will be deflected in a curve path. d) the alpha particle will continue to travel in a straight line.

A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?

When a vertical beam of light passes through a transparent medium, the rate at which its intensity i decreases is proportional to i(t), where t represents the thickness of the medium (in feet). in clear seawater, the intensity 3 feet below the surface is 25% of the initial intensity i0 of the incident beam. what is the intensity of the beam "10" feet below the surface? (give your answer in terms of i0. round any constants or coefficients to five decimal places.)