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Q. A 15 g rifle bullet traveling 235 m/s buries itself in a 3.9 kg pendulum hanging on a 2.6 m long string, which makes the pendulum swing upward in an arc. Determine the vertical and horizontal components of the pendulum's displacement.
Q. One end of a uniform meter stick is placed against a vertical wall . The other end is held by a lightweight cord that makes an angle theta with the stick. The coefficient of static friction between the end of the meter stick and the wall is 0.40.Let the angle between the cord and the stick is theta = 13^circ. A block of the same weight as the meter stick is suspended from the stick, as shown, at a distance x from the wall. What is the minimum value of x for which the stick will remain in equilibrium?
Estimate the time constant in a RC circuit.
What is the turntables angular speed as the block
A professor's office door is 0.9 wide, 2.2 high, 4.2 thick; has a mass of 23 , and pivots on frictionless hinges. A "door closer" is attached to door and the top of the door frame. while the door is open and at rest, the door closer exerts a torqu..
An unmarked police car, travelling a constant 94 km/h, is passed by the speeder travelling 153 km/h. precisely 0.70 s after the speeder passes, policeman steps on the accelerator. If the police car's acceleration is 2.30 m/s^2, how much time elapses ..
assume that for the couple in, you were told that the girl's mass was two-thirds that of the boy. The boy has a velocity of v = +0.61 m/s. What would be the girl's velocity in this case.
Sketch the shear force and bending moment diagram and Verify that the support reactions are correct.
Determine the tension in each string
A toy train rolls around a horizontal 1.30 diameter track. The coefficient of rolling friction is 0.10.
A sled weighing 1.0 X 10^2 N is held in place on a frictionless 20.0 degree slope by a rope attached to a stake at the top. The rope is parallel to the slope. What is the normal force of the slope acting on the sled.
The maximum distance from Earth to the Sun (at our aphelion) is 1.521 x 10^11 m and the distance of closest approach (at perihelion) is 1.471 x 10 ^11 m. Assume the Earth's orbital speed at perihelion is 3.027 x 10 ^ 4 m/s. (overlook the effect of th..
The pilot of the spaceship measures the length of the moving ship as 30 meters. Establish its length as measured by a person on earth.
Two narrow slits 50 micrometers apart are illuminated with light of wavelength 500 nm . What is an angle of the m=2 bright fringe in radians? in degrees.
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