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An object with a mass of 10 kg lies on a horizontal surface with friction with a coefficient of kinetic friction of 0.65. Two additional forces are applied to it. One force of 37 N directed at an angle of 36 degrees below the horizontal and another force in the +x direction. Static friction has been overcome and the mass slides 5 meters in the +x direction with these forces applied to it. After it has slide 5 meters, the net work done by all the forces acting on it is 20 Joules. What is the amount of the second force in Newtons?
The drawing shows three situations in which a block is attached toa spring. The position labeled “0 m” represents theunstrained position of the spring. The block is moved from aninitial position x0 to a final positionxf, the magnitude of the displ..
A 0.00275-kilogram air inflated balloon is given an excess negative charge, q1 = -3.50 × 10-8 C, by rubbing it with a blanket. what polarity of charge must the rod possess
A weather balloon is designed to expand to a maximum radius of 24 m at its working altitude, where the air pressure is 0.030 atm and the temperature is 200 K. what is its radius at liftoff
a container is filled to a depth of 22.0 cm with water. on top of the water floats a 28.0-cm-thick layer of oil with
two loudspeakers are separated by 1.00 meters and are excited in phase by a 1200 hz sine wave. at what points on a line
A sinusoidal wave on a string is described by the wave function y = 0.20 sin (0.70x ? 51t) where x and y are in meters and t is in seconds. Determine power transmitted by the wave
What is the average angular acceleration? through how many revolutions has the centrifuge rotor turned during its acceleration period, assuming constant angular acceleration?
From the Bohr model of the Hydrogen atom, calculate the minimum amount of energy (in eV) an electron in the lowest orbital would need to free it from its proton (i.e., to ionize the atom).
Two charged particles are located on the x axis. The first is a charge +Q at x = -a. The second is an unknown charge located at x = +3a, What are the two possible values of the unknown charge
A man riding a bicycle 140kg together is traveling at 8.6 m/s due north when he is brought to a stop in .50 seconds by a gazelle running to the south. Calculate the impulse exerted on the cyclist.
A cylinder is rolling along the ground without the slipping at 7m/s. It comes to a hill and begins going up. Assuming no losses to friction, how high vertically would it go before it stops.
Sir Lost-a-Lot dons his armor and sets out from the castle on his trusty steed in his quest to improve communication between damsels and dragons. Unfortunately his squire lowered the draw bridge too far and finally stopped it 20.0° below the horiz..
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