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two pith balls are each suspended on two strings of equal length of 95cm from the same point a glass rod that had been
the leader of a bicycle race is traveling with a constant velocity of 114 ms and is 112 m ahead of the second-place
1what is the skin describe it structure2what is a skin cancer3talk about the three types of skin cancers and their
a quantity of ideal gas at 2degc and 80 kpa occupies a volume of 30 m3a how many moles of the gas are presentb if the
a neutron star and a black hole are 2900e12 m from each other at a certain point in their orbit the neutron star has a
the mass of venus is 815 that of the earth and its radius is 949 that of the eartha compute the acceleration due to
a building with a weight of 5200e7 n is built on a concrete foundation with an area of 1300 m2 and an uncompressed
picture a uniform disk with a circular hole cut out of it the disk has a radius of 400 m the holes center is at 200 m
the mass of the ball is 165 kg and the mass of the block is 227 kg the length of the wire is 123 m what is the
in reaching her destination a backpacker walks with an average velocity of 137 ms due west this average velocity
the intensity of sunlight that reaches the earths atmosphere is 1400 wm2 what is the intensity of the sunlight that
a distant observer observing from far away but in the plane of the solar system tries to measure the orbital speed of
one of isaac newtons insights was that the earths gravity extended well beyond its surface even as far as the moon in
if the tension in a guitar string is increased by 20 by what percentage does the wave speed
the pressure inside a gas bottle at 247 degc is 3830 kpa what will be the pressure inside the bottle if 286 percent of
a block of wood of mass m1 1 kg slides to the right on a frictionless horizontal table with a speed of 30 ms it
when jumping straight down you can be seriously injured if you land stiff-legged one way to avoid injury is to bend
suppose that a 1800 kg car passes over a bump in a roadway that follows the arc of a circle of radius 208 ma what force
a golfer hits a golf ball of mass 0045kg the ball over some short trees he hits the ball at an angle of 60 degreed to
a playground merry-go-round of radius r 120 m has a moment of inertia i 260 kg middot m2 and is rotating at 80 revmin
a speedboat starts from rest and accelerates at 201 ms2 for 740 s at the end of this time the boat continues for an
a 45-kg crate slides to the left initially at a speed of 52 ms a rope pulls on it with a tension of 240 n in a
a box is sliding across a board that make an angle of 15 degrees with the horizontal the box is sliding down the
the orbit of a moon about its planet is approximately circular with a mean radius of 487 times 10 8 m it takes 263 days
a rod is 240 m long and has a diameter of 250 mm a force of 2000 n is applied to the end to stretch the rod by 140 mm