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wooden block sits on a level lab table a string draped over a pulley connects to a bucket that can be filled with lead pellets maggie needs to
a 90-kg crate sits on a level rough floor a 61-n force is required just to begin it movingwhat is the size of the coefficient of maximum static
a cue ball on a billiards table travels at 10 ms for 20 s after striking another ball it travels at 080 ms for 25 s at an angle of 600deg from its
for any single force vector there is only one angle for which its x- and y-components are equal in sizea what is that angleb how many times bigger is
a 152-kg police battering ram exerts an average force of 125 n on a 100-kg doora what is the average acceleration of the doorb what is the average
a 725-g bullet is fired from a gun the muzzle velocity of the bullet is 223 ms suppose that the bullet accelerates at a constant rate along the
ngan has a weight of 3145 n on mars and a weight of 8330 n on eartha what is ngans mass on marsb what is the acceleration due to gravity on mars
erika is on an elevator and presses the button to go down when the elevator first begins moving it has an acceleration of 25 ms2 downwarderika and
a large model rocket engine can make a thrust of 120 n upon ignition this engine is part of a rocket with a total mass of 0288 kg when launched a
muturi is rearranging some furniturehe pushes the dresser with a force of 143 nand there is opposing frictional force of 112 nwhat is the net force
the high-dive board at most pools is 300 m above the water a diving instructor dives off the board and strikes the water 118 s latera what was the
a cab driver in a hurry is sitting at a red light when the light turns green she rapidly accelerates for 350 s at 680 ms2 the next light is still red
a child rolls a ball up a hill at 324 ms if the ball experiences an acceleration of 232 ms2 how long will it take for the ball to have a velocity of
a car travelling at 21 ms misses the turnoff on the road and collides into the safety guard rail the car comes to a totally stop in 055 sa what is
a childs toy train moves at a constant speed of 20 cmsa illustrate the position-time graph showing the position of the toy for 10 minb what is the
what is the relationship among the period and the square root of the lengththe graph is linear so the period is proportional to the square root of
how many significant digits are there in each of the following measurementsa 100 m1b 00023 ms2c 1001 m4d
define the diatomic molecules in two dimensionsyou have been transported to a two-dimensional world by an evil wizard who refuses to let you revisit
define ideal gas in one-dimensional potential an ideal gas of particles each of mass m at temperature is subjected to an external force whose
explain chemical potential of ideal gasderive the expression for the chemical potential and gibbs free energy of n molecules of an ideal gas at
define polarization of ideal gasevaluate the electric polarization p of an ideal gas consisting of molecules having a constant electric dipole moment
a monkey of mass m climbs a rope slung over a light frictionless pulleythe opposite end of the rope is tied to a block of mass m lying on a smooth
write a short approx one page review of the contribution of one of the following people to the historical development of physics aristotle ibn
a block of mass 10 kg is attached to the end of a horizontal spring with spring constant k 1200 nm-1 the block is assumed to be sitting on a
a ball of mass 07 kg is dropped vertically from a height of 10 m onto a concrete floor the ball is observed to bounce a number of times before coming