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A 79-kg pilot in an aircraft moving at a constant speed of 495 m/s pulls out of a vertical dive along an arc of a circle of radius 4500 m.
(a) Find the centripetal acceleration and the centripetal force acting on the pilot. (Enter magnitudes only.) ac = Fc =
(b) What is the pilot's apparent weight at the bottom of the dive?
A military helicopter on a training mission is flying horizontally at a speed of 60.0 m/s, How far does it travel horizontally while falling
A high-speed flywheel in a motor is spinning at 500rpm when a power failure suddenly occurs. The flywheel has mass 35.0kg and diameter 73.0cm. At what rate is the flywheel spinning when the power comes back on
A boy pulls with a force of 20 N on the 300 N wagon. What acceleration does the wagon have
60 cm3 of gasoline are mixed with 64 cm3 of water. What is the average density of the mixture
person walks 25.0° north of east for 3-km. How far would another person walk due north and due east to arrive at the equal location?
Two point charges are located on the x axis. The first is a charge +Q at x = ?a. The second is an unknown charge located at x = +3a. What are the two possible values of the unknown charge
Consider the (infinite) midplane between two charges of equal magnitudes and oppoisite signs. If the charges are + and - q, what is the electric flux through the midplane
An underwater diver sees the sun 46 degrees above horizontal. How high is the sun above the horizon to a fisherman
Together, two students exert a force of 640 N in pushing a car a distance of 30 m. How much work do the students do on the car
A 6000kg truck stands on the deck of an 80000kf ferryboat. Initially the ferry is at rest and the truck is located at its front end. how far will the ferry move forward relative to the water
You are driving east on 8th Street (Tamiami Trail) at a speed of 32. In the rearview mirror, What is the frequency of the siren
A weightlifter bench-presses a 170.0 kg barbell from his chest to a height equal the length of his arms 0.750 m. What is the potential energy of the barbell relative to the weightlifter\'s chest after he lifts the barbell
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