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A body is displaced (1.5i - 2.0j) m while being acted on by the force (2.0i - 3.0j) N. How much work is done on the body by the force?
As part of a safety investigation, two 1700 cars traveling at 18 are crashed into different barriers. Find the average forces exerted on (a) car that hits a line of water barrels and takes 1.80 to stop, and (b) car that hits a concrete barrier and t..
A 9.0-kg box of oranges slides from rest down a frictionless incline from a height of 5.0 m, What is the coefficient of kinetic friction, µk, of the surface from A to B
A massless plank of length L = 2 m has two supports. One support is at the left end and one is in the middle. What is the normal force on the middle support
Consider neon, a noble gas whose molecules consist of single atoms of atomic mass 0.02 kg/mol. Avogadro's number is 6.02 × 1023 mol-1, what is the average kinetic energy of a neon atom
A step-up transformer has 26 turns on the primary coil and 770 turns on the secondary coil. what input current and voltage are needed
A physics professor demonstrates the Doppler effect by tying a 610 Hz sound generator to a 0.9 m long rope, What are the highest and lowest frequencies heard by a student
A box with a mass of 5 kg initially moving at 3 m/s comes to rest in a distance of 9 m. what is the magnitude of the net force acting on the box
What is magnitude of the breaking force
The isotope ^(99)Tc* is commonly used in several different types of medical imaging procedures. find the change in the nuclear mass after emission of the gamma ray
A diver of mass 60kg, on entering the water with an initial velocity of 14.87ms-1, experienced a force of resistance due to the opposing motion of magnitude of 180v Newtons, Calculate the maximum depth, in metres the diver will submerge
the components of an airplane's motion are described as: 193 m/s west and 151 m/s south. determine the speed of the airplane
q1. on an open field a cannonball launches at the angle of 50deg with respect to the ground. some moment later you
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