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a student gives a 50 kg box a brief push causing the box to move with an initial speed of 80 ms along a rough surface
an 800 kg car starts from rest and travels a distance of 750 m in 50 seconds which of the following is the correct net
a box moving on a horizontal surface with an initial velocity of 20 ms slows to a stop over a time period of 50 seconds
explain the two ways you can increase electric potential of any system involving a charged
a 25 kg bumper car moving to the right at 5 ms overtakes and collides elastically with a 35 kg bumper car moving to the
a track has a shape given by the formula yx a x2 where x is the horizontal coordinate y is vertical and a is a
two children are sliding down a snowy hill which is inclined by 435 degrees with respect to horizontal one has a rough
consider a block-spring system as shown below the spring has a spring constant of 133 nm while the block has a mass of
electric winch pulley systems like the one shown below are often used to place equipment into the ocean from a research
a block of mass 47 kg starts at rest at the top of a frictionless ramp that makes an angle of 334 below the horizontal
an ideal gas that expands isothermally from v1 to v2 does an amount of work equal to knt ln v2v1 suppose that a given
a body is executing simple harmonic motion with amplitude a what is the total distance traveled by the body in a time
a typical american household uses 265 kw-hour of electricity per day and that electricity is mostly supplied by fossil
a typical laptop consumes 60-120 w of power depending on usage using an average power consumption what is the monthly
a raindrop of mass 218 g is falling through the air being acted on by both weight force and drag force the latter
water with a density of rho 1155 kgm3 flows in a horizontal pipe in one segment of the pipe the flow speed is v1 533
a 129-kg horizontal platform is a uniform disk of radius 157 m and can rotate about the vertical axis through its
a uniform thin rod of mass m 451 kg pivots about an axis through its center and perpendicular to its length two small
the recommended daily allowance for an average adult that does not want to gain or lose weight is roughly 2000 calories
you inflate your car tires to a standard gauge pressure of 350 psi during the day when it is 872 f what is the gauge
we have three resistors of 6 each each resistor can dissipate at most 24 w of power find the four possible ways of
consider the following mass distribution where the x- and y-coordinates are given in meters50 kg at 00000 m 25 kg at
please explain plancks hypothesis and bohrs model and how these ideas shaped our modern understanding of the structure
anbsp22 resistor and anbsp72 resistor are connected in series a third resistor is connected in parallel with thenbsp72
a wire with a resistance of 130 is drawn out through a die so that its new length is twice its original length find