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a 2000 kilogram car traveling at 90 kmh crashes into an immovable concrete walla determine the time of collision
a 21gram sample of copper is at 12oc if 1663 joule of energy is added to the copper find what is its final temperature
a 10 kilogram piece of metal specific heat of 04 calgoc having a temp of 87oc is added to 3 kilogram of water having a
a man heats up a can of soup on a stove if he does 200 joule of work on the soup by stirring it as the burner adds 950
an object of mass 8 kilogram and charge 11 c is in a constant electric field of 18 nc find the magnitude of
an artillery crew wants to shell a position on level ground 35 kilometer away if the gun has a muzzle velocity of 770
starting from rest in the pit area a race car accelerates at a uniform rate to a speed of 45ms in 15second moving on a
a 175 kilogram ball on the end of a string is revolving uniformly in a horizontal circle of radius 0500 meter the ball
a wooden plank is raised at one end to an angle of 30 degree a 20 kilogram box is located on the incline 10 meter from
a ball which has a mass of 335 kilogram is thrown straight up from the ground with an initial velocity of 550 msa find
a bottle containing 600 gram of lukewarm water is located inside of a freezer determine how many calories of heat must
an autographed baseball rolls off of a 054 meter high desk and strikes the floor 068 meter await form the desk the
darius the dare devil plans to launch his rocket car at the top a ramp inclined at 200o to the horizontal over a pit of
flywheels are large massive wheels used to store energy they can be spun up slowly and then the wheels energy can be
a computer disk is 80 centimeter in diameter a reference dot on the edge of the disk is initially located at theta45
caters favorite ride at play land amusement park is the rollercoaster the rollercoaster car and passengers have a
a hockey puck of mass 5 kilogram travelling at 10 ms slows to 20 ms over a distance of 80 metera determine the
a particle of mass m can slide freely along a wire the wire is straight and horizontal and is made to rotate about an
a pendulum is constructed by attaching a mass m to an extension less string of length l the upper end of the string is
a swimmer is distance d 35 meter from a lightning strike in the water with i78 ka the water rho30 omegam the width of
two springs having spring constants k1 and k2 are attached end-to-end in series describe the effective spring constant
rose is sledding down an ice covered hill inclined at an angle of 15o with the horizontal if rose and the sled have a
jill of the jungle swings on a vine 64 meter long calculate the tension in the vine if jill whose mass is 61 kilogram
to work off a large pepperoni pizza you ate you climb a 120 meter high hilla suppose a reasonable value for mass
two blocks are connected by a string the smooth inclined surface makes an angle of 39o with the horizontal and the