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a) The surface is frictionless. The mass m has a velocity 4.26 m/s. When it strikes the very light plate that is attached to the spring with force constant k = 23.1 N/m, the spring is compressed a distance s = 5.69 cm. Find the mass m in grams. Warning: Be careful with the units! Express your result to three significant digits.
b) The mass m = 3.69 kg is sliding on the frictionless incline of angle 42.7 degrees as shown. A force F = 3.24 N is applied horizontally as shown. Compute the acceleration a (in m/s2) of the mass on the incline. Use g = 9.8 m/s2, take parallel to the plane & up the plane as positive, and express your result to three significant digits. Be careful with signs!
Classify the following examples as continuous, line, batch, or project flow processes. Identify the type of Labor (skills, task type, pay), Capital
A 320-g mass and a 400-g mass are attached to the two ends of a string that goes over a pulley with a radius of 8.70 cm. Because of friction, the pulley does not begin to rotate. What is the magnitude of the frictional torque on the bearing of the..
The speed of a bobsled is increasing because it has an accelerationof 2.4 m/s2. At a given instant in time, the forcesresisting the motion, including kinetic friction and airresistance, total 450N. The combined mass of the the ridersis 270kg
A 7.80-g bullet moving at 550 m/s penetrates a tree trunk to a depth of 6.1 cm. Use work and energy considerations to find the average frictional force that stops the bullet
A steel ball of mass 0.76 kg strikes a brick wall in anelastic collision. Incomming, it strikes the wall moving 63 degreesdirectly above the line normal (perpendicular) to the wall. Itrebounds off the wall at an angle of 63 degrees directly below ..
The record distance in the sport of throwing cowpats is 81.1 m. This record toss was set by Steve Urner of the United States in 1981. Determine the total time the projectile was in fligh
Consider the ballistics pendulum experiment. If M=1kg and m=0.1kg, and the velocity of the bob-ball system right after the collision is Vf=2m/s, what was the initial velocity of the ball before it hit the bob
In the game of darts, the player stands with feet behind a line2.36 m from a dartboard, with the bull's-eye at eye level. Supposeyou lean across the line, release a dart at eye level 1.74 m from the board, and hit the bullseye.
What speed must she have at point 3, so that the normal force at the top has the same magnitude as it did at the bottom.
A stretched string of length L is observed to vibrate in six identical segments when driven by a 600 Hertz oscillator. Find what oscillator frequency will set up a standing wave
Evalute the acceleration of each block and the tension in the string? Repeat the problem, adding a coefficient of kinetic friction between each block and the surface of 0.10.
A man sits on the south bank of a 100m wide river that flows due east at 2m/s. The man can swim 3m/s, How long will it take him to cross
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