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Suppose a 1800 kg car passes over a bump in a roadway that follows the arc of a circle of radius 20.4 m.
(a) What force does the road exert on the car as the car passes the highest point of the bump if the car travels at 8.94 m/s?
(b) What is the maximum speed the car can have without losing contact with the road as it passes this highest point?
A professor's office door is 0.90m wide, 2.2m high, 4.2cm thick; has a mass of 28kg , and pivots on frictionless hinges. What is the moment of inertia of the door
A laser beam is incident on two slits with a separation of 0.210 mm, and a screen is placed 5.30 m from the slits. what is the wavelength of the laser light
in one fusion research program a pellet of hydrogen isotopes will be heated and compressed with intense lasers. if a
The magnitude of the electrostatic force between two identical ions that are separated by a distance of 5.0 10-10 m is 8.28 10-9 N. What is the charge of each ion
Draw a cube and Cartesian axes. All points of the cube lie in the (+,+,+) octant of the coordiante system. One vertex of the cube is at (0,0,0), the point called O.
The skis have a thrust of 200. Sam's speed at the bottom is 43.0. Illustrate what is the coefficient of kinetic friction of his skis on snow?
A weight of unknown mass is suspended from a steel wire that is 1.27 m long and has a diameter of 0.56 mm; Find the mass of the weight
a bat emits a sound whose frequency is 88.1 khz. the speed of sound in air at 20.0 oc is 343 ms. however the air
A generator of frequency 2500 Hz drives a series RLC circuit with an emf amplitude of 120 V. The resistance is 4.1 , the capacitance is 1.60 µF, What is the current amplitude
He has a mass of 74.0 kg and his center of gravity is located at a horizontal distance of d1 = 0.730 m from his palms and d2 = 1.10 m from his feet. calculate the forces exerted by the floor on his feet
two tanks are engaged in a training exercise on level ground. the first tank fires a paint-filled training round with a
A 4.60 kg block of ice at 0°C is added to an insulated container partially filled with 11.6 kg of water at 15.0°C. Find the mass of the ice that was melted
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