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A constant torque of 22.4 N•m is applied to a grindstone for which the moment of inertia is 0.166 kg•m2. Determine what is the angular speed after the grindstone has made 16.5 rev? Suppose the grindstone starts from rest.
Answer in units of rad/s.
A 2.40-kg object has a velocity (5.60 - 1.20 ) m/s. (Note: From the definition of the dot product, v2 = · .) What is its kinetic energy at this moment
Consider the bead threaded on a circular hoop of Example 7.6 (page 260), working in a frame that rotates by the hoop. Discover the equation of motion of the bead, and check that your result agrees with Equation (7.69). Using a free-body diagram, desc..
an object which has a height of 12.5 cm is placed 45.0 cm in front of a concave spherical mirror which has a focal
The current in the coil above is adjusted to produce a fieldstrength of 2.0 mTesla. The axis of the coil is horizontal andalong the east-west direction. Find the direction of the net field from both sources
A tennis ball connected to a string is spun around in a vertical, circular path at a uniform speed. What is the minimum velocity so the string will not go slack as the ball moves around the circle
a 27 pound meteorite struck a car leaving a dent 25 cm deep in the trunk. if the meteorite struck the car with a speed
An artificial satellite circles the Earth in a circular orbit at a location, Determine the orbital period of the satellite
A car with 52cm -diameter tires accelerates uniformly from rest to 20m/s in 10s. How many ties does each tire rotate
A 2.1x10^3 kg car starts from rest at the top of a driveway that is sloped at an angle of 20.0 degrees with the horizontal. What is the length of the driveway
A 1.0 kg hollow ball with a radius of 0.08 m, filled with air, isreleased from rest at the bottom of a 2.2 m deep pool of water. How high above the water does the ball shoot upward
a vector force with components 125 acts at the point 321a find the vector torque about the origin due to this forceb
Over a time interval of 1.92 years, the velocity of a planet orbiting a distant star reverses direction, changing from +22.2 km/s to -20.5 km/s. Find (a) the total change in the planet's velocity (in m/s) and (b) its average acceleration (in m/s2) du..
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