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Two resistors of 5 and 9 ohm are connected in parallel. A 4 Ω resistor is then connected in series with the parallel combination. A 6 Volt battery is then connected to the series-parallel combination. Estimate the current through the 4 ohm resistor?
A tennis ball of mass 57.0 g is held just above a basketball of mass 590 g. With their centers vertically aligned, both balls are released from rest at the same time, to fall through adistance of 2.00 m.
A rod of proper length L moves past you a speed v. You reach out and grab the back end of the rod, bringing that point instantly to rest in your frame of reference.
A 12 turn loop of wire in the plane of the whiteboard has adiameter of 46cm and has a clockwise current of 7.32A. A magneticfield of .0453 T is directed from the floor to the ceiling.
During a snowmobile race our hero goes 16.7 km at 45 deg to the North of West (45 degrees above the -X). Then turns and goes 7.5 km due east. Then turns and goes 23 km at 40 degrees to the West of South (40 degrees to the left of -y).
The temperature of the glass surface of a 30 W light bulb is 75°C when the room temperature is 10°C. Estimate the temperature of a 150 W light bulb with a glass bulb the same size. Consider only radiation, and assume that 90% of energy is emitted as ..
An 8.70kg block slides with an initial speed of 1.84 m/s down a ramp inclined at an angle of 28.2 with the horizontal. find the distance the block slides before coming to rest
Two masses, M=3.8kg and m=2kg, are hung over a massless, frictionless pulley. What is the downward acceleration of mass M
A 1.6kg , 20-cm-diameter turntable rotates at 50rpm on frictionless bearings. What is the turntable's angular velocity, in rpm, just after this event
A rocket is launched at an angle of 54.0° above thehorizontal with an initial speed of 97m/s. The rocket moves for 3.00 s along its initial line of motionwith an acceleration of 30.0m/s2. At this time, its engines fail and the rocket proceeds to m..
If the spring is stretched by 1.4 times the value in part A, and then released from rest, and the coefficient of kinetic friction between the box and the plank is 0.34, what is the magnitude of the initial acceleration of block as it starts moving..
Two harmonic oscillators A and B, of mass m and spring constant ka and kbm respectively, are coupled together by a spring of spring constant kc. Find the normal frequencies w' and w'' and describe the normal modes of oscillation if kc^2 = kakb.
For women's volleyballthe top of the net is 2.24m above the floor and the court measures9.0m on each side of the net. what minimum maginitude must it have if the ball is to clear the net
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