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A meter stick and a two-meter stick have the same thicknesses and density. They are both placed upright and balancing on one end. They are then disturbed slightly from this unstable equilibrium and fall to the floor. Which one hits the ground first?
A 96N grocery cart is pushed 10m along an aisle by a shopper who exerts a constant horizontal force of 40-N. If all frictional forces are neglected and cart starts from rest, what is the grocery cart's final speed.
A ball of circumference 72.7 cm and mass 605 g is forced to the bottom of a swimming pool and then released. After initially accelerating upward, Calculate the buoyant force on the ball
Just after opening a parachute of negligible mass, a parachutist of mass 82.5 kg experiences an instantaneous upward acceleration of 1.15 m/s2. Find the force of the air on the parachute
A heat pump keeps a house warm at 72.0 degrees Fahrenheit when the outside temperature is 0 degrees Fahrenheit. How much heat is drawn in from the outside
A pion traveling at speed v decays into a muon and neutrino. at what angle does the muon come off
q1. a rock is throwing from a tall building. the rock reaches its maximum height above the top of the building 1.77 s
A motorcycle and rider have a total mass of 289 kg the rider applies the brakes, What is the net force (in Newtons) on the motorcycle and rider combination
Helium forms a solid at low temperatures and high pressures. To maintain the order present in a solid, each atom must remain at its assigned position, Find the uncertainty in momentum of the helium atom
You are given 65.000 cm of copper wire with diameter 7.0000 mm. compute At what rate is thermal energy generated in the loop
two blocks of mass m1 and m2 approach each other on a horizontal table with the same constant speed, Vo, as measured by a laboratory observer. Determine the ratio of the two masses m1/m2
a molten plastic flows out of a tube that is 8.0 centimeters long at a rate of 13cm^3/min, find the viscosity of the plastic
A 1290kg car and 4860kg truck undergo a perfectly inelastic collision. Before the collision, the car was traveling southward at 1.80m/s, Find the velocity of the wreckage immediately after the collision
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