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In a uniform circular motion the a) acceleration is parallel to the velocity b)acceleration is vertical while the velocity can be in any direction c) acceleration is always vertical and the velocity is horizontal d)acceleration is perpendicular to the velocity
A 13.5 kg raccoon falls out of a tree and hits the ground with a kinetic energy of 1237.0 J. What was the raccoon's velocity when it was 5.0 m above the ground
A 1.00kg ball is at rest on the floor in a 2.10m * 2.10m * 2.10m room of air at STP. Air is 80% nitrogen (N2) and 20% oxygen (O2) by volume. What is the thermal energy of the air in the room
A worker pushed a 27 kg block9.2m along a level floor at constant speed with a force directed27°below the horizontal. If the coefficient of kinetic friction is 0.20, how much work was done by the worker's force?
A shot-putter throws the shot ( mass = 7.3 ) with an initial speed of 14.0 at a 32.0 angle to the horizontal. Calculate the horizontal distance traveled by the shot
A charge of 8 nC is uniformly distributed around a ring of radius 10 cm that has its center at the origin and its axis along the x axis. A point charge of 1 nC is located at x = 1 m. Discover the work required to move the point charge to the origin. ..
a centrifuge in a medical laboratory rotates at an angular speed of 3550 revmin. when switched off it rotates through
A vacuum cleaner is plugged into a 120.0-V socket and uses 3.0A of current in normal operation when the back enf generated by the electric motor is 72.0 V. Find the coil resistance of the motor.
A battleship is using sonar (reflected underwater sound signals) to detect the presence of nearby submarines. How far away from the battleship is the submarine
A 2.00-kg package is released ona 53.1o incline, 4.00 m from a longspring with force constant 120 n/m that is attached at the bottom of the incline . The coefficients of friction between the package and the incline are static frictionis 0.4 and ki..
a glass flask whose volume is 1000 cm3 at a temperature of 0.200 degrees celsius is completely filled with mercury at
what is the maximum deformation of the bumper. The coefficient of kinetic friction for a 25 bobsled on a track is 0.10. What force is required to push it down a 5 incline and achieve a speed of 64 at the end of 75.
When tightening a bolt, you push perpendicularly on a wrench with a force of 161 N at a distance of 0.120 m from the center of the bolt. How much torque are you exerting
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