What is the velocity of the ball after hitting
You hit a ball of mass 0.5 kg. The force you apply to the ball is 20 N for a time of 0.3 s.
a. What is the impulse?
b. Assuming the ball started from rest when you hit it, what is the velocity of the ball after you hit it?
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A 230-V shunt motor develops a torque of 40 Ib-ft when the armature current is 11 A. Find the torque developed when the current increase to 22 A and the field flux remains constant.
Two spheres with charges of +6x10^-6 and -2x10^-6 bagin at a distance of .02 m. They touch and then seperate. Calculate the force between them after they touch.
Your investment banking firm has estimated what your new issue of bonds is likely to sell for under several different economic conditions. What is the expected (average) selling price of each bond?
As the load on the motor is increased, the developed torque increases to 50 Ib-ft. Find the armature current required to produce the increased torque.
Assuming the ball started from rest when you hit it, what is the velocity of the ball after you hit it?
Assume that there are only two inputs (labor and natural resources) producing two goods (movies and gasoline) with no improvement in society's technology over time. Further, assume that natural resources are being rapidly depleted.
Calculate the probability of a Type II error if the true mean is 14%. Assume that the population standard deviation is known to be 2% and that a significance level equal to 0.01 will be used to conduct the hypothesis test.
Marcela needs to have $48,000 in 8 years on a savings plan that requires monthly contributions. If she can earn 10 percent APR with monthly compounding on the savings plan, what is the amount that she will have to invest every month for the next
Pure ethane at 400 degrees C is fed to the reactor, which operates isothermally at 100% ethane conversion. Calculate the required heat transfer to or from the reactor (state which it is) in kJ.
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