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What is the relationship between impulse and motion?What is the relationship between pairs of forces in certain situations?Put these results together to draw a general conclusion comparing the motion of two objects before a collision with their motion after a collision. You should be able to find a quantity which will remain unchanged in a collision. Be sure to justify your reasoning.
the membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space.
A 10-kg box is at rest on a horizontal frictionless surface, at the end of an unstretched horizontal spring with constant k=4000 N/m, What is the speed of the box when it passes back through the equilibrium point
In an explosion, an object breaks down into two pieces, M1 and M2. M2 flies away at 3 times the speed of M1. Which mass has more momentum immediately after the explosion
A certain particle has the life time of 10^-7 s, while measured at rest. How far does it go before decaying if its speed is 0.99 c when it is created.
A race car starting from rest accelerates at a constant rate of 6.50 m/s2. What is the velocity of the car
A loudspeaker of mass 19.0 kg is suspended a distance of h = 2.00m below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l= 3.50m. Illustrate what is the tension T in each of the cables?
A particle leaves the origin with an initial velocity of 4.20 m/s in the x direction, and moves with constant acceleration ax = -1.80 m/s2 and ay = 2.30 m/s2. a-How far does the particle move in the x direction before turning around? b-What is the..
A simple capacitor is made by placing two spheres of radii p at a distance d>>p apart. Find the capacitance of the system of two spheres
a camera lens with a focal length of 50mm and aperture of f1.4 is used to image a scene. the photographer focuses the
A severe thunderstorm dumped 2.5 in of rain in 30 min on a town of area 33km2. What mass of water (in kg) fell on town? One cubic meter of water has a mass of 103kg.
an explorer is caught in a whiteout in which the snowfall is so thick that the ground cannot be distinguished from the
q1. a 4 kg fish swimming 3 ms swallows an absent minded 2 kg fish at rest. what is the speed of the large fish
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