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A 5.0 ? resistor is connected in series with another resistor and a 5.0 V battery. The current in the circuit is 0.70 A. Calculate the value of the unknown resistance.
solve a 0.880 mev photon is scattered by a free electron such that the scattering angles of the electron and photons are equal. Determine the angles?
Estimate the gravitational force between the Sun and Venus. The mass of the Sun is 1.99×10^30 kg. The mass of Venus is 48.7×10^23 kg. The distance between them is 10.8×10^10 m.
A highway patrolman sends a 24.150-GHz radar beam towards a speeding car. The reflected wave is lower in frequency by 4.04-kHZ
A 5.6 cm -thick layer of oil (n =1.46) is sandwiched between a 1.5 cm -thick sheet of glass and a 2.0 cm -thick sheet of polystyrene plastic (n = 1.59.) How long (in ns) does it take light incident perpendicular to the glass to pass through this 9..
A charging RC circuit controls the intermittent windshield wipers in a car. The emf is 12.0 V. What resistance should be used in the charging circuit if the wipers are to operate once every 1.40 s
Occasionally, huge icebergs are found floating on the ocean's currents. Suppose one such iceberg is 134 km long, 39.4 km wide, and 187 m thick.
Sketch a free-body diagram of the plank. How far can a painter of mass 70.0 kg walk on the overhanging part of the plank before it tips.
The deflection plates in an oscilloscope are 10 cm by 2 cm with a gap distance of 1 mm. A 100 volt potential difference is suddenly applied to the initially uncharged plates through a 950 ohm resistor in series with the deflection plates.
A 50 kg box is being pushed a distance of 7.0 m across the floor by a force whose magnitude is 164 N. The force is parallel to the displacement of the box.
In order to fabricate a uniform wire of resistance 1.2 ?, out of m=1 g copper which has a density of 8.92×103 kg/m3, What should be the diameter of the wire
An atomic nucleus of mass 288 u moving at 405m/s emits an alpha particle of mass 4.0 u in the direction of its velocity. If the remaining nucleus slows to 360m/s, what velocity does the alpha particle have when it is emitted.
Because of your knowledge of physics, you head your boat 44° west of north and have a velocity of 8.0 m/s due north relative to the shore. Illustrate w hat is the velocity of the current? What is your speed relative to the water.
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