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A man whose weight = 584N is doing pushups. His center of gravity is located 0.410m from where his hands tough the ground and 0.840m from where his feet touch the ground. Find the normal fource exerted by the floor on EACH hand and EACH foot, assuming that the person holds this position steady.
A chartered airplane flies 100 km east, then 350 km northwest, and then 150 km at 30° west of south. Find the magnitude of the last leg of the journey
question1two acrobats each of 60.0 kg launch themselves together from a swing holdings hands. their velocity at launch
A light bulb is wired in series with a 134-Ω resistor, and they are connected across a120-V source. The power delivered to the light bulb is 22.3 W. What are the two possible resistances of the light bulb
The upward velocity of the 5 kg block is v1 = 3 m/s when it is at a height ht = 10 m from the sandy surface. Determine time to stop the motion of the block if the average impulsive force acting on the block
A solid spherical ball of mass 1.44 kg and radius 0.11 m rolls along a smooth, level surface with a speed of 2 m/s. How far up the plane does the ball go
Water has a mass per mole of 18.0 g/mol, and each water molecule(H2O) has 10 electrons. How many electrons arethere in 3 liters of water?(A liter is 1.00 multiplied by 10-3 m3) What is the net charge of all these electrons?
An electron starts from rest 36.5cm from a fixed point charge with Q = -0.105?C. How fast will the electron be moving when it is very far away
A 885 g block oscillates on the end of a spring whose force constant is k = 56 N/m. The mass moves in a fluid which offers a resistive force F = -bv, where b = 0.162 N·s/m. (a) What is the period of the motion? s (b) What is the fractional decrease i..
Technetium-99 has an excited state that decays by emission of a gamma ray. The half-life o fthe excited state is 360 min. What is the activity, in curies, of 1.00mg of the excited isotope
It is proposed that future space stations create an artificial gravity by rotating. Suppose a space station is constructed as a 800-m -diameter cylinder that rotates about its axis. The inside surface is the deck of the space station.
A rifle with a weight of 40 N fires a 3.5 g bullet with a speed of 240 m/s. find the recoil speed of the man and rifle
q1. a customer sits in an amusement park ride in which the compartment is to be pulled downward in the negative
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