Calculate final velocity change if throwing a ball
Using energy conservations, how would your calculated final velocity change if you threw a ball off a building straight downward at the same speed as you threw it upward? Explain/give an example.
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If a dielectric is inserted between the plates of a parallel-plate capacitor that is connected to a 100-V battery, which decreases? The electric field between the plates decrease, voltage across capacitor, or charge on capacitor?
Determine the radius of the orbit and the speed of the rocket from the requirement that the centripetal force keeping the rocket in orbit is the gravitational force.
How many times would you expect to be able to honk the horn with a 50% probability of not having any failures? What is the expected number of times you hit the horn before the fourth failure?
Determine the first time (greater than zero) that the position is at its maximum value. Set the argument of the sine or cosine function to the value that satisfies the stated condition, and solve for the time.
If the activation energy of a unimolecular reaction is 63kj mol-1, what fraction of the reactant molecules have sufficent energy to react at 9 degrees C? what fraction of the reactant molecules have sufficient energy to react at 29 degrees C?
How many years would it take to double the Sun's mass at this rate? How would the mass accretion affect the Earth's orbital period/distance from the Sun?
A student carried out a simple distillation of toluene for purification. Gas Chromatography analysis indicated the obtained fraction was 100% pure.
Determine (a) the exit velocity of the nitrogen and (b) the ratio of the inlet to exit area A1/A2. Assume constant specific heat.
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