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Question: You release a fritionless cart at the top of each of the 2 ramps. Both carts are released from rest. The ramps have the same height as each other at the starting and finishing points. One has a small bump up then down just before the end. the other has a small bump down then up. Which cart has the larger speed at the finish? Why?
Newton's law of cooling. Newton's law of cooling (and warming) states that the rate of change of temperature u = u(t) of an object is proportional.
Suppose you want to make a scale model of a hydrogen atom. For the nucleus you choose a small ball bearing with a radius of 1.7 mm, What would be the radius of the model
The plane of a 8.0 cm x 9.0 cm rectangular loop of wire is parallel to a 0.25-T magnetic field. The loop carries a current of 6.8 A. What is the maximum torque that can be obtained
Two cars are traveling along a straight line in the same direction, the lead car at 25.2m/s and the other car at 31.0m/s. At the moment the cars are 41.9m apart, the lead driver applies the brakes, causing her car to have an acceleration of -2.07m..
for the isomerization of n-butane to isobutene we have g -rt lnk where r 1.9872 and k isobutenen-butane the temperature
A 2.20 mH toroidal solenoid has an average radius of 5.60 centimeter and a cross-sectional area of 2 cm2. Compute how many coils does it have
When a potential difference of 160 V is applied to the plates of a parallel-plate capacitor, What is the spacing between the plates
For about 10 years after the French revolution, the French government attempted to base measures of time on multiples of ten: One week consisted of 10 days, find the ratio of the French decimal week to the standard week
A flywheel rotates at a rate of 20 rpm. A motor provides a constant angular acceleration so that 30 secondslater it turns at a rate of 70 rpm, what is the angular acceleration of the splotch of paint
The 500[m] Short Track speed skating Olympic world record is 39:937[sec] held by American JR Celski. Calculate JR's average speed in [miles=hr] during his record- setting performance.
A 50.0 g super ball traveling at 30.0 m/s bounces off a brick wall and rebounds at 19.5 m/s. what is the magnitude of the average acceleration of the ball
With an internal pressure of 5.245E6 a two mole sample of ideal gas at 200°C in a container of volume 1.5L is increased to 400°C. By what factor does the pressure increase
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