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Q1. A 245 ball is tied to a string. It is pulled to an angle of 5.20 and released to swing as a pendulum. A student with a stopwatch finds that 10 oscillations take 10.5.
Q2. A juggler throws a bowling pin straight up with an initial speed of 7.00 .How much time elapses until bowling pin returns to the juggler's hand?
Q3. An explosion in the atmosphere (Patm = 101 kPa, Tatm = 20 degrees) instantaneously raises the static pressure at the explosion point to 1.42 MPa.
a) Is the wave(s) generated a finite compression shock wave or a series of expansion waves?
b) Assuming the waves(s) is locally planar; i.e. flow is normal to the waves(s), estimate the waves(s) velocity and static temperature, air velocity, stagnation pressure, and stagnation temperature behind the wave relative to the ground.
A 29.0 kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 85.0 N and is directed at the angle of 30.0° above the horizontal. Find out the coefficient of kinetic friction.
What is direction of the velocity of the canoe
A rifle with a barrel length of 56 cm fires a 14 g bullet with a horizontal speed of 350 m/s/s. The bullet strikes a block of wood and penetrates to a depth of 13 cm.
While a roofer is working on a roof that slants at 44.0 above the horizontal, he accidentally nudges his 93.0 toolbox, causing it to start sliding downward, starting from rest.
The coefficient of kinetic friction between block and ramp
A stone of mass 0.31 kg is tied to a string of length 0.85 m and is swung in the horizontal circle with speed v. The string has a breaking-point force of 90 N. What is the largest value v can have without string breaking.
What is an angular speed of the small cylinders, which is between two inner and outer cylinders
A loudspeaker of mass 22.0 {rm kg} is suspended a distance of h = 1.60 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.90 {rm m}.
What is magnitude of the momentum
What is the magnitude of the magnetic field. Evaluate this to the tension as the boat is raised and held at rest so the angle becomes 25 degrees.
Determine magnitude of the force
A 3.3 block of wood sits on a table. A 3.0 bullet, fired horizontally at a speed of 480, goes completely through the block, emerging at a speed of 200 .What is the speed of block immediately after the bullet exits.
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