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A gass has 100 J of energy in the form of heat is transfered to a system and the system does 150 J of work, what is the change in the internal energy of the system?
q. suppose that you hear a clap of thunder 15.90 s after seeing the associated lightning stroke. the speed of sound
a race car driver must average 199.0 kmh over the course of a time trial lasting ten laps. if the first nine laps were
A certain metal with atomic mass (2.1 x 10^-25)kg has an interatomic bond with length (2.3 x 10^-10)m and stiffness 42 N/m
A 2.30-kg object attached to a spring moves without friction (b = 0) and is driven by an external force given by the expression F = 3.50sin(2(3.14)t), Find the angular frequency of the driven system
A Doppler ultrasound unit is used to measure the motion of blood in a patientâ€TMs artery. What is the maximum speed of the blood in the artery
Sam, whose mass is 71kg , takes off across level snow on his jet-powered skis. What is Sam's top speed
A small ferryboat is 4.00 m wide and 6.00 m long. When a loaded truck pulls onto it, the boat sinks an additional 4.60 cm into the river
A pedestrain bridge consists of a walkway of mass 1000kg and length 10.0m supported at each end by brackets. Two people, each of mass 80kg, are walking across the bridge.
A 92.0-kg astronaut and a 1200-kg satellite are separated from the space ship, and are both at rest with respect to the ship without any method of getting to the ship. how far away from the ship is the satellite
A 40.6 kg keg of beer rolls down a 3.40 m long plank leading from the flatbed of a truck 0.880 m above the ground
A dentist's drill accelerates from rest at 640rad/s2for 2.30s and then runs at constant angular velocity for 6.50s. Through how many total revolutions has the drill turned
A 43.0kg seal at an amusement park slides from rest down a ramp into the pool below. what is the work done by kinetic friction
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