Questions from Modern Physics

Q: Calculate the torque (magnitude and direction) about point O due

Calculate the torque (magnitude and direction) about point O due to the force

Q: Calculate the net torque about point O for the two forces applied

Calculate the net torque about point O for the two forces applied as in Fig. E10.2. The rod and both forces are in the plane of the page. Fig. E10.2:

Q: A square metal plate 0.180 m on each side is

A square metal plate 0.180 m on each side is pivoted about an axis through point O at its center and perpendicular to the plate (Fig. E10.3). Calculate the net torque about this axis due to the three...

Q: Three forces are applied to a wheel of radius 0.350

Three forces are applied to a wheel of radius 0.350 m, as shown in Fig. E10.4. One force is perpendicular to the rim, one is tangent to it, and the other one makes a 40.0° angle with the ra...

Q: One force acting on a machine part is F =(-5.

One force acting on a machine part is F =(-5.00 N)

Q: A metal bar is in the x y-plane with one

A metal bar is in the x y-plane with one end of the bar at the origin. A force

Q: A ball is rolling along at speed v without slipping on a

A ball is rolling along at speed v without slipping on a horizontal surface when it comes to a hill that rises at a constant angle above the horizontal. In which case will it go higher up the hill: if...

Q: A machinist is using a wrench to loosen a nut. The

A machinist is using a wrench to loosen a nut. The wrench is 25.0 cm long, and he exerts a 17.0-N force at the end of the handle at 37° with the handle (Fig. E10.7). (a) What torque does th...

Q: A uniform disk with mass 40.0 kg and radius 0

A uniform disk with mass 40.0 kg and radius 0.200 m is pivoted at its center about a horizontal, frictionless axle that is stationary. The disk is initially at rest, and then a constant force F = 30.0...

Q: The flywheel of an engine has moment of inertia 1.60

The flywheel of an engine has moment of inertia 1.60 kg.m2 about its rotation axis. What constant torque is required to bring it up to an angular speed of 400 rev/min in 8.00 s, starting from rest?