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True orFalse?
1. When electrons are moving from right to leftin a conducting wire, the electric field is directed toward the right.2. Electric current is a vector quantity.3. When a potential difference V is applied to two different wires,each carries an identical current I. From this observation we can conclude that the length of the wires is the same.4. When there is a current in a conductor, the potential at anypoint in the conductor is the same.5. Consider a conductor carrying current which splits at a junction in to two branches. The magnitudes of the currents in the branches are the same as the magnitude of the current in the original conductor.
You place 73 moles of hydrogen gas in a balloon of volume 2.6 m3, and find the pressure to be 1.4 times atmospheric pressure. What is the typical speed of a hydrogen molecule?
Two 22.3-cm-focal-length converging lenses are placed 16.5?cm apart. An object is placed 35.0?cmin front of one lens. obtain the total magnification
coast guard pararescue jumpers are trained to leap from helicopters into the sea to save boaters in distress. the
A large water tank has an inlet pipe and an outlet pipe. The inlet pipe has a diameter of 3 cm and is 1 m above the bottom of the tank. What is the velocity of the water in the outlet pipe
n object of mass "m" specific heat "Cp" & surface area "As" is initially at a temperature "To". Rate of Heat gained by Object = Rate of Heat Lost by Gas m, Cp, h, A & Tg are all constants.
A parallel-plate capacitor with circular plates of radius 0.20 m is being discharged. At what rate is the electric field between the plates changing
an implanted pacemaker supplies the heart with 72 pulses per minute each pulse providing 6.4 v for 0.67ms . the
Zartan of the jungle crosses a river by grabbing an 8 m long vine, conveniently hanging from a strong branch, and swinging over the water. find his acceleration and the tension in the vine
When a ceiling fan rotating with an angular speed of 2.75 rad/s is turned off, a friction torque of 0.120 N.m slows it to a stop in 22.5s . What is the moment of inertia of the fan?
a beam of hydrogen molecules h2 is directed toward a wall at an angle of 55deg with the normal to the wall. each
The tallest spot on Earth is Mt. Everest, which is 8857 m above sea level. If the radius of the Earth to sea level is 6369 km, how much does the magnitude of g change between sea level and the top of Mt. Everest
A golfer imparts a speed of 29.2 m/s to a ball, and it travels the maximum possible distance before landing on the green. The tee and the green are at the same elevation. How much time does the ball spend in the air?
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