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If a person on a diet losses 1.710 Kg in a week. Ignoring thesmall contribution that leap year adds to each week, determine how many micro grams per second are lost.
Find the coefficient of friction between ax and grindstone.Two negative point charges are separated by 20 rm cm and feel a mutual repulsive force of 3.35 mu N. The charge of one is three times that of the other. How much charge does each have.
A 3 kg block is observed to accelerate at a rate twice that of the 6 kg block. Is the net force acting on the 3 kg block therefore twice as large as that performing on the 6 kg block? Explain.
A 2.03 kg book is placed on a flat desk. Suppose the coefficient of static friction between the book and the desk is 0.502, How much force is needed to keep the book moving at constant speed once it begins moving
What is the average of the velocity squared in pure oxygen (O2) at standard pressure (1 bar) and concentration 0.001 mol/L? Give answer in (m/sec)^2
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..
Estimate the change in enthalpy and entropy when liquid ammonia at 270oK is compressed from its saturation pressure of 328 kPa to1,200 kPa. For saturated liquid ammonia at 270oK, Vl=1.551x10-3 m3kg-1, and \(\beta=2.095x10-3K-1.\)
A long solenoid of radius a =10.0cm and length 15.0meters has N1 = 3500 turns and carries a clockwise, variable current; at time t=1.00sec, Find the average EMF induced in the small coil
A string under tension of 50.0 N is used to whirl a rock in a horizontal circle of radius 2.5 m at a speed of 20.4 m/s on a frictionless table. What is the breaking strength, in Newtons, of the string
A small object is placed to the left of a convex lens and on its optical axis. The object is 30 cm from the lens, which has a focal length of 48 cm. Describe the nature of this new image
a 12.0 g plastic ball is dropped from a height of 2.50 m, How much mechanical energy was lost during the balls fall
Suppose the emf of a coil rotating in a magnetic field is zero at t = 0 , and increases to its first peak at t = 0.08 ms. What is the period of the output
A ball of mass 0.30 kg is fired with velocity 160 m/s into the barrel of a spring gun of mass 2.5 kg initially at rest on a frictionless surface. What fraction of the ball's initial kinetic energy is stored in the spring
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