The electric field at a distance of 0.133 m from the surface of a solid insulating sphere with radius 0.369 m is 1790 N/C .

A 11.0 g bullet is fired horizontally into a 104 g wooden block that is initially at rest on a frictionless horizontal surface and connected to a spring of constant 140 N/m. The bullet becomes embedded in the block. If the bullet-block system compresses the

At time t=0 a proton is a distance of 0.360 mfrom a very large insulating sheet of charge and is moving parallel to the sheet with speed 950 m/s . The sheet has uniform surface charge density 2.34.×10−9C/m2 .

two masses m1=1.8kg and m2=1.3kg are attached by a string passing over a pulley. the system is released from rest, and after traveling a distance h=1.0m the masses have a speed of v= 2.0m/s. what is the acceleration of the blocks assuming the acceleration is

An ambulance is traveling East at 20m/s. The siren emits a fixed frequency of 340Hz. Each of the following cars is traveling down the road as described. Determine if the driver of the car will hear a frequency the same as 340Hz, higher than 340Hz,

what is the work generated by friction

What is the centripetal accelerate during a hammer throw if the chain is 1.2 meters long and the angular velocity is 15 rad/s

A cart is attached to a hanging mass by a string that passes over a pulley. When the cart moves on an incline at constant speed, it is in equilibrium; ie, the net force on it is zero.

A block of wood is held in place against a rough wall by someone pushing on it with a force directed upward at 28° above the horizontal. The coefficients of static and kinetic friction between the wood and wall are 0.40 and 0.30, respectively. The

two masses are connected by a massless string which runs across a massless, frictionless pulley. the heavier mass m2 is also connected to a spring, which is attached to the ground and has a spring Constant of K. Both masses are initially placed at the