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a car with a mass of 2120 kg is traveling at a speed of 80 kmhr if the driver applies the brakes which can exert a
please explain the answertwo children pull on a toy truck of mass 24 kg along a rough horizontal surface one child
a bowling ball of mass 20 kg strikes a stationary pin of mass 500 x 102 g the collision lasts for 060 s after which the
two identical small spheres of mass 20g are fastened to the ends of an insulating thread of length 060m the spheresare
the moment of inertia of a sphere with uniform density about an axis through its center is 25mr2 0400mr2 satellite
a person is swinging a ball on a string in a circle above their head the string is 10m long the ball has a mass of 20kg
a pendulum composed of mass m1 10 kg on the end of a string of length 10m initially makes an angle of 45 degrees with
a pallet stacked with bags of cement weighing a total of 5501 n must be pushed up a 230-m incline to a 750-cm high
a wheelbarrow 600 feet long is used to haul a 180 pound load how far in feet from the wheel is the load placed so that
a 30-kg red book is suspended from a spring attached to the ceiling of an elevator that is accelerating downward
a ladder of length l 12 m and mass m 45 kg leans against a frictionless wall its upper end is at height h 93 m above
you are at the controls of a particle accelerator sending a beam of 150ampgtamplt107 ms protons mass m at a gas target
two children a and b with masses m and m are holding the ends of a massless rope of length l and sliding on a
two cars collide at an intersectionnbspcar a of mass m is initially heading north at speed vnbspcar b of mass m is
a 200kg sleigh is pulled along a ramp with a constant speed the slope of the incline is 30degree the sleigh is pulled
what is the gravitational attraction of someone on earth due to the sun how does this compare with the gravitational
the pressure at the discharge of a water pump is 100 psig and the temperature of the water is 80 deg c find the
the suction pipe of a pump rises from a sump at a slope of 1 in 5 and water passes through at 18 ms if dissolved air is
a boeing 747 jet airplane takes off from dallas to new york it is cruising at a constant speed of 245 kmhr at 11000 m
a 160 m uniform ladder weighing 520 n rests against a frictionless wall the ladder makes a 570deg angle with the
concern has been expressed that warming of the atmosphere resulting from industrial pollution could cause the polar ice
an object arrow 20cm high is placed on the principal axis of a convex spherical mirror 60cmin front of the lens the
copper has the following properties specific heat solid 386jkg -1 c -1 latent heat fusion 207 x 10 5 jkg -1
consider a tube open at both ends that has a length of 0500ma what is the period of the fundamental frequencyb what is
mike is cutting the grass using a human-powered lawn mower which has a mass of 20 kg he pushes the mower with a force