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1). A student drives the 100 mi trip back to campus after spring break and travels with an average speed of 61 mi/h for 1hour and 30 minutes.a). what distance was traveled during this time?b). Traffic get heavier, and the last part of the trip take sanother half-hour. What was the average speed during this leg of the trip?c). Find the average speed for total trip.
2). A student drops an object out the window of the top floorof a high-rise dormitory.a). Neglecting air resistance, how fast is the object traveling when its strikes the ground at the end of 3.9 s? First used standard British units and then expess the speed in mi/h for a familiar comparison.Can things dropped from high places be dangerous to people below?b). How far, in meters, does the object fall during the 3.9s? Comment on how many floors the dormitory probably has. (Assume that there are 32 floors/100m).
Partciles (mass of each =.2kg) are placed at the 80 cm and 100 cm marks of a meter stick. the mass of the meter stick is .3kg. what is the moment of inertia of the body
A diver makes 2.5 revolutions on the way from a 11-m-high platform to the water. find the diver's average angular velocity during a dive
A ball of mass m is tied to a vertical (Cyclinder) post of radius R. The mass slides on a frictionless, What is the angular momentum of the ball after the string has wrapped once around the post
Suppose the coefficient of static friction between the road and the tires on a car is 0.60 and the car has no negative lift. What speed will put the car on the verge of sliding
The following two traveling waves are super posed to create at standing wave: What is the resulting amplitude of the standing wave
A racing dog is initially running at 15.0 m/s, but is slowing down. How fast is the dog moving when its kinetic energy has been reduced by half
A capacitor is connected across an ac generator whose frequency is 746 Hz, What is the magnitude of the maximum charge on one plate of the capacitor
A thin rod of length 0.75 m and mass 0.35 kg is suspended freely from one end. It is pulled to one side and then allowed to swing like a pendulum, Find the rod's kinetic energy at its lowest position
Let an initial velocity of a flywheel be 20 rad/s and let it be slowing at 4.0 rad/s. How many radians will it pass through before it stops
A gamma-ray photon produces an electron and a positron, each with a kinetic energy of 259keV, Determine the energy of the photon
Assume a dampening depth, d, of 30 cm and a period, lambda, of 24 hours (8.64 x 104 sec). Assume a volumetric heat capacity, C, of 0.5 cal/cm °C, find the thermal diffusivity and conductivity
A red light flashes at position xR=4.00 m and time tR=1.00x10-9 s and a blue light flashes at xB=5.00 m and tB=8.50x10-9 s. Find the location of the two flashes in frame S'
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