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In Meters What is the distance of closest approach of the two particles? (Assume that the gold nucleus remains stationary and that it may be treated as a point charge. The atomic number of gold is 79, and an alpha particle is a helium nucleus consisting of two protons and two neutrons.)
A 35 mm camera with interchangeable lenses is used to take a picture of a hawk that has a wing span of 1.5 m. The hawk is 39 m away. What would be the ideal focal length of the lens used
a uniform electric field of magnitude 200 vm is directed in the negative x direction. a 10.7 muc charge moves from the
An inductor of L=0.7H and a charged capacitor C=5F with Q =20C are connected to each other. How much energy is stored in the capacitor initially? When the current in the circuit is ½ its maximum value, how much energy remains in the capacitor?
a solenoid 60 cm long and of radius 4.0 cm has 3 layers of windings of 300 turns each. a 2.0 cm long wire of mass 2.5 g
Two resistors A and B are connected in series to a 9.0 V battery; the voltage across resistor A is 6.0 V. What are the resistances of A and B
A Carnot engine whose high-temperature reservoir is at 580 K takes in 520 J of heat at this temperature in each cycle and gives up 309 J to the low-temperature reservoir.
A glass window 0.35cm thick measures 84cm by 84cm. how much heat flows through this window per minute if the inside and outside temperture difference differ by 15 degree Celceus
A gardener feels it is taking him excessively long to water a garden with a 0.952cm diameter hose. By what factor will his time be shortened, if he uses a 1.58 cm diameter hose.
You are trying to overhear a juicy conversation, but from your distance of 15.0 m , How close should you come
what is the distance of closest approach of the two particles. explain two ways in which you could you this equipment to raise the crate.
Two hanging masses are connected by ropes to a 20 kg mass which sits on a frictionless table. find The amount of unbalanced force acting on the masses,
A 2.5-m long board with a mass of 12 kg is placed on a bar so that it is perfectly balanced, i.e., A 22-kg child sits on the left end of the board. What is the torque they exert on the system
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