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A thin spherical shell of mass 0.450 kg and diameter 0.210 m is filled with alcohol ( = 806kg/m3). It is then released from rest on the bottom of apool of water. Find the acceleration of the alcohol filled shell asit rises toward the surface of the water.
m/s2
The minimum distance required to stop a car moving at 36.0 mi/h is 48 ft. What is the minimum stopping distance for the same car moving at 70.0 mi/h, assuming same rate of acceleration.
A horizontal spring-mass system has low friction, spring stiffness 150 N/m, and mass 0.4 kg. What is the maximum speed during the motion
A very long, straight solenoid with a cross-sectional area of 6.15 is wound with 30 turns of wire per centimeter, compute the average induced emf in the secondary coil
A seasoned mini golfer is trying to make par on a tricky hole #5, at what speed must the golfer hit the ball to land the ball in the hole
A 1000.0 kg car traveling at 50.0 miles per hour on a long, What was the average coefficient of sliding friction between the car's tires and the road
Reply in m/s. Also, why does the car's mass not matter.
Briefly explain how we modify the Energy Conservation equation when there is work don't by forces outside of our system of interest? Be clear on what the modification means in terms of the total energy within our system.
this simulation can be downloaded from granthams website under ph220.simulations its file name is ball on roller cstr
The statement is: the effects of scaling are good for some creatures and bad for others. I understand the effect of scaling on cubes and the fact that smaller cubes have great surface-area-to-volume ratios.
A 1 041-kg satellite orbits the Earth at a constant altitude of 103-km. What is the change in the system's potential energy
On average, each American produces 20,000 kg of CO2 per year, mostly through the consumption of fossil fuel such as oil, coal, and natural gas. what would be the length of each side of the cube
How many wavelengths are there in one pulse
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