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suppose one gallon of gasoline produces 11 multiplied by 108 j of energy and this energy is sufficient to operate a
a space traveler moving at a speed of 056c with respect to the earth makes a trip to a distant star that is stationary
suppose you are planning a trip in which a spacecraft is to travel at a constant velocity for exactly nine months as
a car initially traveling at speed 60 mih on a horizontal road comes to rest over a distance of 40 meters after the
a golf ball m05 kg and a cannonball m100 kg collide head on before the collision the two balls had equal speeds of 30
an object with a mass of 2 kg is moving along a horizontal surface with velocity components vx4 ms and vy 35 mswhat is
a long solenoid with its axis along the x axis consists of 180 turns per meter of wire that carries a steady current of
a healthy heart pumps about 70 ml of blood in one heart beat the average pressure exerted is about 100 mm-hg and there
a man with a mass of 800 kg is out fishing with his daughter who has a mass of 350 kg they are initially sitting at
a wind is blowing with velocity v2 10 ms over your house inside the house the air is still v1 0a as a result of the
a circular loop of wire with a radius of 150 cm and oriented in the horizontal xy-plane is located in a region of
a 04 kg mass attached to a spring is pulled back horizontally across a table so that the potential energy of the system
a sled and rider with a combined mass of 50 kg are at the top of a hill 20 m above the level of ground below the sled
first set the mass of the star to 10 solar masses and click the auto box the accepted lifetime of the sun is
at the low point in its swing a pendulum bob with a mass of 1 kg has a velocity of 8 msa what is its kinetic energy at
a wooden cube of side 3 m has a density of 700kgm3 and floats partiall submerged in the seawater density 1025 kgm3what
a spring with a spring constant k of 32 nm is stretched a distance of 22 cm 022 m from its original unstretched
a 7 kg ball has a velocity of 16 msa what is the kinetic energy of the balljb how much work would be required to stop
consider the l1 to l0 transition in the hcl molecule if the sample contains two isotopes of chlorine 35cl and 37cl the
a box with a mass of 5 kg is lifted without acceleration through a height of 2 m to place it upon the shelf of a
a net force of 30 n accelerates a 6 kg mass over a distance of 12 ma what is the work done by this net forcejb what is
a point source emits sound waves with a power output of 130 w at what distance will the decibel reading be 120 db which
the vibrational frequency of co molecule is 642 x 1013 hz1 estimate the amplitude of molecular
a block of mass m 20 kg is dropped from height h 90 cm onto a spring of spring constant k 1960 nm find the maximum
a solid sphere has a temperature of 628 k the sphere is melted down and recast into a cube that has the same emissivity