What is the y-coordinate
An artillery shell is fired with a minimal velocity of 390 m/s at 52o above the horizontal. To clear an avalanche, it explodes on a mountain side 43 s after firing. What is the y-coordinate?
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A monochromatic light is incident on the surface of a metal with work function W = 2.2 eV. If a stopping potential V = - 2 V is required to make the photocurrent zero, what is the wavelength of light in nm?
A hare and a tortoise compete in a race over a straight course 2.25 km long. How far is the tortoise from the finish line when the hare resumes the race?
How long (in years) will it take for 99.9778% of the 38Sr90 released in a nuclear reactor accident to disappear?
A dockworker applies a constant horizontal force of 80.0({rm N}) to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves a distance 12.0({rm m}) in a time of 4.70({rm s}
Gravitational potential energy of a mass m a height h above but close to the surface of the earth is said to be given by the expression ΔPE=mgh. Show that for heights much smaller than the radius of the earth (h« Rearth), that ΔP
A diverging lens (f = -13 cm) is located 23.0 cm to the left of a converging lens (f = 33.8 cm). Determine the distance of the final image relative to the converging lens.
At t = 0, a particle leaves the origin with a velocity of 6m/s in the positive x direction and moves in the xy plane with a constant acceleration of (-2 i - 4 j) m/s 2. H ow far is the particle from the origin at t = 1 s?
The new equilibrium such that the new equilibrium position is 60 relative to the vertical. If the new small-oscillation frequency is 6 radians per second, find the rod length L.
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