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Q. An 24 g rifle bullet traveling 370 m/s buries itself in a 4.8 kg pendulum hanging on a 2.6 m long string, which makes the pendulum swing upward in an arc. Determine the maximum vertical displacement of the pendulum (height).(g = 9.8 m/s2)
Q. At time t=0 a grinding wheel has an angular velocity of 23.0 rad/s. It has a constant angular acceleration of 25.0 rad/s^2 until a circuit breaker trips at time t = 2.00 s. From then on, the wheel turns through an angle of 440 rad as it coasts to a stop at constant angular deceleration. Through what total angle did the wheel turn between and the time it stopped? At what time does the wheel stop? What was the wheel's angular acceleration as it slowed down?
The process is claimed to produce 2000 J/min of work and to require an undisclosed amount of heat transfer with a heat reservoir at 300 K. Should inventor be issued a patent of this device.
A 67.3 ice skater moving to the right with the velocity of 2.52 throws a .151 snowball to the right with a velocity of 33.7 relative to the ground. What is velocity of the ice skater after throwing the snowball.
A crate with a mass of 171.5 kg is suspended from the end of a uniform boom with a mass of 80.3 kg. The upper end of the boom is supported by a cable attached to the wall and the lower end by a pivot (marked X) on the same wall. compute the tensio..
A motorist drives south at 30.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.80 min, and finally travels northwest at 30.0 m/s for 1.00 min. For this 6.8 min trip, how do you find the total vector, average speed and average velo..
The vector is 3.5 long and is directed into this page. Vector points from the lower-right corner of this page to the upper-left corner of this page and has components -19.5, 25.
Determine the location of the center of mass of the molecule as measured from the hydrogen atom (Chlorine is 35 times more massive than hydrogen.).
A car of mass M = 1100 kg traveling at 45 km/hour enters a banked turn covered with ice. The road is banked at an angle theta, and there is no friction between the road and the car's tires.
A computer is reading data from a rotating CD-ROM. At a point that is 0.030m from the center of the disk, centripetal acceleration is 120m/s2. What is the centripetal acceleration at a point that is 0.05 m from the center of disc.
A bar AB of negligible mass and length 2 m balanced at its midpoint a 4 kg and 5 kg masses are suspended from both ends. A 4 kg mass is 0.4m away from the midpoint. At what point the mass of 5 kg is suspended to a bar keep the balance.
Find out ratio of the detector
A cannonball launched with an initial velocity of 161 m/s at the angle of 45 degrees follows a parabolic path and hits a balloon at the top of its trajectory. Neglect air resistance, how fast is it going when it hits the balloon? What is the accelera..
The concepts for finding the change in length of a rod.
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