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A 5 kg ball is thrown upward with an initial speed of 30 meters per second. Suppose there is a constant air resistance of 25N opposing the motion during its entire up and down path.
How long will it take to get to the highest point in its path? How high is the highest point?
White light is shone on a very thin layer of ice (n = 1.31), and above the ice layer, What is the thickness of the ice layer
A certain atom of has 89 protons. Assume that the nucleus is a sphere with radius 7.25 fm and with the charge of the protons uniformly spread through the sphere. At the nucleus surface what is the magnitude of the electric field produced by the pr..
Argon is a monatomic gas whose atomic mass is 39.9 u. The temperature of eight grams of argon is raised by 71 K under conditions of constant pressure. how much heat is required
A converging lens with a focal length of 13.7 cm and a diverging lens are placed 24.0 cm apart, with the converging lens on the left. What is the height of the final image
A spotlight is coated so that it won't transmit magenta light from its white-hot filament. What colour emerges from coated spotlight.
q1. the rotational inertia of a collapsing spinning star changes to 45 its initial value. what is the ratio of new
A 3.00-kg block starts from rest at the top of a 29.0° incline and slides 2.00 m down the incline in 1.65 s. Find the frictional force acting on the block
A man pushes a heavy box up a plank inclined at an angle of 30. Calculate the ideal mechanical advantage of this incline plane
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
Tarzan swings on a 35.0-m-long vine initially inclined at an angle of 32.0° with the vertical. What is his speed at the bottom of the swing if he starts from rest
Two thin convex lenses, A and B, lens A has a long focal length and lens B has a short focal length. which lens will produce an image at a smaller s'
Walk 10 miles in the direction 54 degrees east of due north. Then walk 4 miles in the direction 23 degrees south of due east. How far will you be from your starting point?
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