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an inflatable bag is located in the dashboard of a car in a collision the bag expands abruptly and cushions the impact
you hold a book in place on a chalkboard by applying a horizontal force find the minimum horizontal force need to keep
one kilowatt an hour kwh is the amount of work or energy generated when one kilowatt power is supplied for a time of
if the mass of a wheel is increased by a factor of 18 and the radius is increased by a factor of19 find by what factor
a potters wheel of radius 021 meter is turned on at t 0 and accelerates uniformly after 89 second the wheel has an
a baseball was hit at 45 ms at an angle of 45o above the horizontal determine how long did it remain in the air
a baseball outfielder throws a 0150 kilogram baseball at a speed of 400 ms and an initial angle of 30 degree find the
in the bohr model the electron is imagined to move in a circular orbit about a stationary proton if the speed of the
find what is the direction of the acceleration of a particle moving at constant speed in a circle what two measurements
if tarzans arms are capable of exerting a force of 1500 newton on the rope find what is the maximum speed he can
a 70 kilogram trunk is pushed 42 meter at constant speed up a 30 degree incline by a constant horizontal force the
at t 0 q0 9 c and i 0 in an lc circuita at the first moment when the energy is shared similarly by the inductor and
a wood block weighing 130n rests on an inclined plane the coefficient of kinetic friction among the block and the plate
in a rear-end collision the automobile that is accelerated to a velocity v in 001 s what is the minimum velocity at
a bowling ball encounters a 0760 meter vertical rise on the way back to the ball rack neglect frictional losses and
a person rides a motorbike 190 m along a road that slants upward at 90 o from the horizontal1 how far has the rider
a baseball of mass 145 gram leaves the pitcheracutes hand at 966 mih but due to air resistance it arrives at home plate
a 80 kilogram person standing erect steps off a 23 meter high diving platform and begins to fall from rest the person
an object is placed 120 centimeter in front of a convex mirror the image being 660 centimeter behind the mirror a
the creation of elements in the early universe and in the stars involves proton tunneling through nuclei obtain the
four ropes are tied to a stake and each is pulled toward a compass direction n s e or w a force of 7 n is applied to
a baseball leaving the bat at 46o at a height of 12 meter from the ground clears a 3 meter high wall 125 meters from
a 2-omega and a 6-omega resistor are connected in series with a 24-v battery of internal resistance 5-omega what is the
a mass m 44 kilogram is attached to a vertical spring with k 202 nm and is set into motiona determine what is the
a what is the magnitude of the gravitational force that the earth exerts on the moonbnbsp what is the magnitude of the