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a) when a 0.350 kg mass is hung on the end of a spring, the spring is observed to stretch by an amount of 12.0 cm in coming to a new equilibrium position. what is the force constant of the spring?
b) the mass is then pulled down a further 8.0 cm and released, and oscillates up and down in simple harmonic motion. what would be the frequency of the motion in Hz, and what is the maximum acceleration?
c) what would be the displacement from equilibrium at time t=1.0 s after release?
The density of ice is 917 kg/m3, and the density of sea water is 1025 kg/m3. What is the weight of the heaviest bear that the ice can support without sinking completely beneath the water
Compute the average intensity
A dipole of moment 0.7 e · nm is placed in a uniform electric field with a magnitude of 70000 N/C.What is the magnitude of the torque on the dipole when the dipole is perpendicular to the electric field?
A 539 Hz sound wave travels through a substance. What is the speed of sound in the substance
An automobile has a mass of 1710 kg and a velocity of 17.2 m/s. It makes a rear-end collision with a stationary car whose mass is 2220 kg. What is the velocity of the two cars just after the collision
Two boats start together and race across a 46 km wide lake and back. Boat A goes across at 44 km/h and returns at 48 km/h. Boat B goes across at 27 km/h, and its crew, realizing how far behind it is getting, returns at 69 km/h. Turnaround times are n..
what was the cars original kinetic energy? after the car has stopped, what is the change in temperature of the brakes and wheels?
It takes a student t = 5.2 s to push a block m = 6 kg at a constant velocity over a distance of d = 4.6 m. How much power was applied to the block in Watts
M1 is a spherical mass (43.0 kg) at the origin. M2 is also a spherical mass (17.2 kg) and is located on the x-axis at x = 99.0 m. At what value of x would a 16.5-kg mass experience no net gravitational force due to M1 and M2?
What would have happened to our graphs in this lab if we had a heavier bar?
Suppose that you have a 470 , a 900 , and a 1.30 k resistor. What is the maximum resistance you can obtain by combining these
At the end of a race a runner decelerates from a velocity of 8.00 m/s at a rate of 0.300 m/s2. What is her final velocity
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