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An object of mass 2 kg increases in speed from 2m/s to 4m/s in 3 sec. Calculate the total work performed on the object during this time interval.
a skier of mass m is standing on a slope with an angle of elevation ø. After being given a tiny nudge, the skier slides down the slope, how much energy is lost while the skier slides down the incline
Suppose you are riding a stationary exercise bicycle, and the electronic meter indicates that the wheel is rotating at 9.50 rad/s. how far would you have gone if the bike could move
Calculate for a rectangular surface with the vertices (b,a/sqrt(2),0), (0,a/sqrt(2),0), (0,0,a/sqrt(2)), and (b,0,a/sqrt(2)) the vectorial surface element dS (Hint: Find first a suitable parametrization of the surface).
a spaceship flies past earth at a speed of 0.900. a crew member on board the spaceship measures its length obtaining the value 400m
A 2000 kg car traveling at a speed of 23m/s skids to the halt on wet concrete where = 0.60. How long are the skid marks.
Calculate the total cost ($/kWh) of electricity delivered to the grid including fuel cost and debt charge with O&M of 5% added to the total.
Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 2.10×106N , one at an angle 10.0? west of north, What is the total work done by the two tugboats on the supertanker
Consider a thin spherical shell with surface charge density σ = σoCosθ and radius R centered about the origin (x=y=z=0). Here σo is a constant.
The entrepreneur who founded the company is convinced that sales will increase next year by 150% and that net operating income will increase by 400%, with no increase in average operating assets. Illustrate what would be the company's ROI?
A golf ball of mass 4.50 x 10^-2 kg is struck by a club. Contact lasts 2.31 x 10^-4 s, Compute the average force the club exerts on the ball
A raft is made of 12 logs lashed together. Each is 28 cm in diameter and has a length of 6 m. How many people can the raft hold before they start getting their feet wet
q1. two 53 rm g blocks are held 30 rm cm above a table. one of them is just touching a 50-long spring. the blocks are
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