What is the total mechanical energy of a 3 kg object traveling at 7 m/s if its potential energy is 42 J?
to achieve an active force of 5.2 g, did you have to increase the stimulus voltage above 8.5 volts? if not, how did you achieve an active force of 5.2 g? how well did the results compare with your prediction?
is the sheet of aluminum foil a good shield for the microwaves that are inside a microwave oven operating at this frequency?
A nonmechanical water meter could utilize the hall effect by applying a magnetic field across a metal pipe and measuring the hall voltage produced. What is the average fluid velocity in a 3. 50-cm-diameter pipe, if a 0. 750-t field across it creates a 75. 0-mv hall voltage?.
a sled of mass 1.97 kg has an initial speed of 4.90 m/s across a horizontal surface. the coefficient of kinetic friction between the sled and surface is 0.194. what is the speed of the sled after it has traveled a distance of 4.25 m?
when the sun and moon are in a line with the earth, the: group of answer choices arrival of high tide will be delayed. gravitational attraction will be less. difference between high and low tides will be minimal. highest high and lowest low tides will occur.
a spy satellite is reputed to be able to resolve objects 10. cm apart while operating 197 km above the surface of earth. what is the diameter of the aperture of the telescope if the resolution is only limited by the diffraction effects? use 550 nm for light.
what is the magnitude of this acceleration in the limit of small t ? in this limit, the average acceleration becomes the instantaneous acceleration.
a blacksmith strikes a piece of metal with a hammer repeatedly. the metal slowly begins to glow as the temperature increases, and the metal becomes more malleable. which changes on a microscopic level led to the visible changes in the properties of the metal?
a truck is traveling at 20 m/s on a slippery road. the driver slams on the brakes and the truck starts to skid. if the coefficient of kinetic friction between the tires and the road is 0.20, how far will the truck skid before stopping?
consider a wing mounted in the test-section of a subsonic wind tunnel. the velocity of the airflow is 165 ft/s. if the velocity at a point on the wing is 190 ft/s, what is the pressure coefficient at this point?
