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Three resistors, 20 %u03A9, 50 %u03A9, and 82 %u03A9, are connected in series, and a 0.63-A current passes through them. What are
(a) the equivalent resistance and
(b) the potential difference across this equivalent resistance?
A heat that goes into a particular carnot engine is 4.72 times greater than the work it performs. What is the engines efficiency
A white billiard ball with mass mw = 1.3 kg is moving directly to the right with a speed of v = 3.42 m/s and collides elastically with a black billiard ball with the same mass mb = 1.3 kg, What is the final speed of the white ball
What is an average speed for the new trip
A particle is described by the wave function Ψ(x) ={ Axe^-ax, x>0 and Ψ(x) ={ 0, x≤0, Find the most probable position of the particle
The venturi flowmeter shown in the figure is used to measure the flow rate of water in a solar collector system. The flowmeter is inserted in a pipe with diameter 1.9 {rm cm}; at the venturi of flowmeter the diameter is reduced to 0.64 {rm cm}. Th..
A person of mass 72-kg stands at the center of a rotating merry-go-round platform of radius 2.80 m and moment of inertia 930 kgcdot m^2. The platform rotates without friction with angular velocity 2rad/s. The person walks radially to the edge of t..
A ball is thrown upward from the ground with an initial speed of 15.2 m/s; at the same instant, After how long will the balls be at the same height
Block 1, of mass m1 = 0.700kg , is connected over an ideal (massless and frictionless) pulley to block 2, of mass m2, Find the mass of block 2
One end of a metal rod, which is insulated from the environment, has a length of 0.30 m and cross-sectional area 2.00 x 10-5 m2, Calculate the thermal conductivity K of the material in the rod
An object is dropped from the top of a tower at a height of 44.1 m. How much time does the object take to reach the ground
You've made the finals of the Science Olympics! As one of your tasks, you're given 1.9g of copper, What diameter will you choose for your wire
Place a sheet of paper under a medium-sized book lying on a smooth tabletop or desktop. Which objects move the least when the paper is pulled rapidly
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