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suppose you attach the object with mass m to a vert spring at rest and let it bounce up and down. you release the object from restat the springs original rest length.
A.) show that the spring exerts and upward force of 2.00 mg on the object at its lowest point.
B.) if the spring has a force constant of 10.0 N/M and a 0.25 kg-mass object is set in motion find the amplitude and oscillations.
C.) find max velocity.
Suppose both skaters are initially moving v, but one has mass m and the other 2m. What point do they rotate about after they meet? What is the linear velocity of this point? What is the angular velocity of the system
A point charge with q1 = +2.8 C is located at x = 3.0 m, y = 0, and a second point charge with q2 = +4.4 C is at x = +1.0 m, y = +3.0 m. What are the components of the electric field at x = +1.0 m, y = 0
A block of mass m1 = 0.57kg is placed on top of another block of mass m2 =0.97kg, What minimum coefficient of static friction between the two blocks will prevent the upper one from slipping
An aluminum bar of mass 2.00kg at 300 C is thrown into a lake. The temperature of the water in the lake is 15.0 C; what is the change in total entropy Delta
A galvanometer with a coil resistance of 14.1 is used with a shunt resistor to make a nondigital ammeter that has an equivalent resistance of 0.755. determine the full-scale current of the galvanometer
In extremely cold weather conditions where the inside thermostat is set to 27 C and the outside temperature is -20C, How much energy might you lose in one week
The four masses shown in the figure are connected by massless, rigid rods, Find the coordinates of the center of gravity
Illustrate at what horizontal distance, x, from the base of the building will the rock strike the ground? Assume the ground is level and that the side of the building is vertical. The acceleration of gravity is 9.8 m/s2 .
An air puck of mass m1 = 0.15 kg is tied to a string and allowed to revolve in a circle of radius R = 1.1 m on a frictionless horizontal table. What is the horizontal force acting on the puck
A parallel plate capacitor has an electric field between its two plates of 525,000 V/m. The two plates are 2.2x10-5 m apart. find the speed of the proton when it reaches the negative plate
Tension is maintained in a string as in the figure below. What is the mass per unit length of the string
An object is sliding on a horizontal surface. The coefficient of kinetic friction between the object and the surface is 0.250. how far will the object travel before it stops
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