Coulomb's Laws--> Please help!
1. Object A is metallic and electrically neutral. It is charged by induction so that it acquires a charge of -2.9 x 10-6 C. Object B is identical to object A and is also electrically neutral. It is charged by induction so that it acquires a charge of +2.4 x 10-6...
When jumping straight down, you can be seriously injured if you land stiff-legged. One way to avoid injury is to bend your knees upon landing to reduce the force of the impact. A 66.9-kg man just before contact with the ground has a speed of 4.22 m/s. (a) In a stiff-legged landing he comes to a...
thanks for the help guys but I'm still having a little troble
1. A 50.3-g golf ball is driven from the tee with an initial speed of 40.6 m/s and rises to a height of 29.9 m. (a) Neglect air resistance and determine the kinetic energy of the ball at its highest point. (b) What is its speed when...
1.A 50.3-g golf ball is driven from the tee with an initial speed of 40.6 m/s and rises to a height of 29.9 m. (a) Neglect air resistance and determine the kinetic energy of the ball at its highest point. (b) What is its speed when it is 6.17 m below its highest point?
a. KE=1/2mv^2
i used...
can someone please help me with these problems? I'm completely lost.
1. Synchronous communications satellites are placed in a circular orbit that is 2.32 x 107 m above the surface of the earth. What is the magnitude of the acceleration due to gravity at this distance?
2. A woman stands on...
i suck at physics!
can someone please help me with some physics problems?
1. A woman stands on a scale in a moving elevator. Her mass is 62.2 kg, and the combined mass of the elevator and scale is an additional 836 kg. Starting from rest, the elevator accelerates upward. During the...