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among the globular clusters orbiting a distant galaxy one is moving at 420 kms and is located 11 kpc from the center of
a projectile is launched from the ground at an angle of 30 to the horizontal it has an initial speed of 20 ms-1
a bug is hanging onto the rim of a bicycle wheel for dear life as the bicycle rolls down the road at a speed of 5 ms
two people of equal mass hold hands while ice skating and are spinning around a point midway between them with no
explain what three groups of biochemical compounds are used as food in the human body and the chemical nature of each
if h is the rate at which the universe expands in kmfraslsfraslmpc then the hubble time is t 1fraslh find the hubble
often when something slides down a ramp we ignore the energy lost due to friction what is a conservation of energy
a tetherball is attached to a pole with a 20-m rope it is circling at 020 revs as the rope wraps around the pole it
an object is placed 52 cm in front of a circular converging mirror a real image forms 162 cm in front of the mirror by
an object is placed 49 cm in front of a converging lens an image forms which has a magnification of 226 and is inverted
a parallel plate capacitor has plates of area 100 cm2 separated by 0250 mm there is a charge of magnitude 400 pc on
a car is moving down a flat horizontal highway at a constant speed of 210msnbspwhen suddenly a rock dropped from rest
a cannonball is fired horizontally from the top of a tall cliff at a speed of 392msa using a coordinate system where
what would happen to atoms if the down quark had charge 13 rather than - 13would a particle made by updownstrange
suppose that you have a certain spring to which you add weights the spring does not stretch until you add 10 n but it
radioactive decaythe radionuclide 64cu has a half-life of 127 ha how much of an initially pure 550 g sample of 64cu
charges accelerated and then subject to b-fielda a proton is given kinetic energy of 0200 kev i what potential
consider an ac emf source connected to a resistor if the average power dissipated is 455 w and the rms current is 528
what is a stationary state in quantum mechanics and if our system is in stationary state we have time independent
a plane on a mission to deliver food to hungry people is traveling parallel to the ground at a speed of 3400 kmh as the
for a saturated soil sample with a void ratio of 0720 and a saturated density of 1820 tm3calculate the volume of solids
a car traveling at 600 kmh collides with a stationary truck the car has a mass of 8400 kg and the truck has a mass of
it takes 212 seconds to hoist a rescue diver of mass 81 kg from the ocean surface to a helicopter hovering 208 meters
a uniform circle of massnbspm1nbsp 310 kg a uniform triangle of massnbspm2nbsp 130 kg and a uniform square of
lab ohms law using a phet simulationobjectives- determine the mathematical relationship between current potential