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a 500 kg snowboarder has an initial velocity of 200 ms at the top of a 26o incline after sliding down the 100m incline
a string is wrapped many times around a pulley and is connected to a block with mb 5711 kg that is hanging vertically
a toy of mass 0155 is undergoing simple harmonic motion shm on the end of a horizontal spring with force constant 295
scientists want to place a 44000 kg satellite in orbit around mars they plan to have the satellite orbit at a speed of
a pulley with a radius of 100 cm is mounted on an axle that passes through the center of the pulley the axle allows the
you are researching personal watercraft pwc safety these vehicles have a well known safety issue in which the rider
given the reaction 2als 3h2so4aq --gt al2so43 aq 3h2g what volume of h2 gas measured at stp will be produced from 540
a 0477 kg block of wood hangs from the ceiling by a string and a 00680 kg wad of putty is thrown straight upward
a frictionless block of mass 235 is attached to an ideal spring with force constant 250 at the spring is neither
an artillery shell of mass 1000 kg lying at rest on the ground accidentally detonates exploding into three pieces of
if the molar of a binary compound has a molar mas between 145 and 160 amu and contains 5298 oxygen and the balance
when a cannon with a longer barrel is fired the force of expanding gases acts on the cannonball for a longer distance
a 300 kg block is released from rest at the elevated end a of a frictionless track that slopes down to a point b and
a white billiard ball with mass mw 143 kg is moving directly to the right with a speed of v 342 ms and collides
calculate the number of joules of heat required to change 850 grams of water at 25 degrees c to steam at 100 degrees c
a bumper car with mass m1 1090 kg is moving to the right with a velocity of v1 49 ms a second bumper car with mass m2
a 02 m3 rigid tank initially contains refrigerant 134a at 1 mpa saturated vapor the tank is connected to a supply line
a sample of serum has a mass of 54 mg and a volume of 225 cm3 what is its density in gcm3 what would be the mass of
two balls of negligible radius are connected by a rod with a length of 150 m the rod has a negligible mass one ball has
a circular platform of radius rp 595 m and mass mp 359 kg rotates on frictionless air bearings about its vertical
a proton moves perpendicular to a uniform magnetic field at a speed of 190 107 ms and experiences an acceleration of
a proton and an electron have the same kinetic energy upon entering a region of constant magnetic field what is the
lead has a critical temperature of 7 2 k and a critical field at 4 2 k of 430 acm a what is the critical field at t 1
consider a dielectric material with dielectric constant e and with a given free charge distribution per unit volume f