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three forces are applied to a solid cylinder of mass 12 kg see the drawing the magnitudes of the forces are f1 15 n f2
an x-ray photon frequency 3x10 hz collides with an electron at rest and is scattered through 90 degrees what is the
a figure skater is spinning with an angular velocity of 14 rads she then comes to a stop over a brief period of time
a 1048-m ladder with a mass of 244 kg lies flat on the ground a painter grabs the top end of the ladder and pulls
the angular speed of the rotor in a centrifuge increases from 423 to 1404 rads in a time of 520 sa obtain the angle
an electron moving in one dimension is confined between two walls seperated by a distance l 10-10 m suppose the
the n 2 state of hydrogen has a lifetime of about 10-8 sec suppose the atom jumps from the n2 state to the ground
you hear a fire truck with a certain intensity and you are about 1 mile away another person hears the same fire truck
a certain string just breaks when it is under 25 n of tension a boy uses this spring to whirl a 075kg in a horizontal
gas is confined in a tank at a pressure of 107 atm and a temperature of 241degc if two thirds of the gas is withdrawn
a ball of radius 200 cm rolls from rest dawn a ramp as shown in fig if the height h is 465 m and the ball falls 27 m
a 1200 kg satellite completes one circular orbit of the earth every 90 minutesa determine the radius of the satellites
a 75 nm spring is suspended vertically with nothing attached to it and rests at equilibrium then a mass is attached to
a disk with the radius 060 m begins at rest and is then spun up to a high speed by applying an angular acceleration of
two people are pushing inward on a door from the outside one person is pushing the door shut from the inside the first
a record turntable rotates through 50 rad in 28 s as it is accelerated uniformly from rest what is the angular velocity
a string is attached to a cube of wood with a volume v100cm3 and is placed in fresh water with density 1000 kgm3 as
a water storage is filled with freshwater to a depth of 64m it has a circular basin with an area of 30m2a what is the
1 a ball of mass m swings through a height h of 003m toward a ball of mass m 3m which is initially at rest if m has an
a two vehicles travelling on a road in the same direction collide vehicle 1 has a mass 1200 kg and is travelling at
a power cycle operating on 2kg of ideal argon a closed thermodynamic system consists of 3 partsa reversible isochore
an infants toy has a 140g wooden animal hanging from a spring if pulled down gently the animal oscillates up and down
vector a has components ax 40 units and ay32 units whereas vector b has components bx-25 units and by55 units the angle
a concrete block of msss 10kg is pulled 70m across a frictionless surface by means of a rope and the net work done on
a projectile is shot at an angle of 60 degrees to the horizontal near the surface of the earth but in the absence of