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Two cylindrical glass beads each of mass m = 20 mg are set on their flat ends on a horizontal insulating surface separated by a distance d = 8 cm. The coefficient of static friction between the beads and the surface is ?s = 0.2. The beads are then given identical charges (magnitude and sign). What is the minimum charge needed to start the beads moving?
After a 0.838 nm x-ray photon scatters from a free electron, the electron recoils with a speed equal to 1.49E+6 m/s. Through what angle was the photon scattered
a 1.5 kg ball falls onto a floor. just before it strikes the floor its velocity is 12 m/s. the ball bounces up with a velocity of 10 m/s. find the impulse on the ball
How far did you travel on this trip? What was your average speed.
a thin film of alcohol (n=1.36) lies on a flat glass plate (n=1.54). when monochromatic light, what is the thickness of the film
What are the possible value for of n and m if a) l = 1, b) l = 4, and c) l = 0 ? Compute the minimum possible energy for each case. compute the normalization constant for the wave function
A hypodermic needle is attached to a syringe with a plunger of diameter 1.6 cm. What is the minimum force must be applied to the plunger
A race car can be slowed with a steady acceleration of -11 m/s2 if the car is going 55m/s how many meters would it travel before it stops.
Displacement d2 is in the xz plane 30° from the positive direction of the x axis, has a positive z component, and has magnitude 1.10 m.
A parallel-plate capacitor has plates with an area of 395 cm2 and an air-filled gap between the plates that is 2.29 mm thick. How much energy is stored in the capacitor
A 4.7 e2 kg hot-air balloon takes off from rest at surface of the earth. The nonconservative wind and lift forces take the balloon up, doing +9.70 multiplied by 104J of work on the balloon in the process. At what height above the surface of the ea..
A resting person requires 14.5-L of per hour to maintain metabolic activities. Such a person breathes in 0.510L of air at approximately 32.0 degrees celsius with each breath. The inhaled air is 20.9 percent while the exhaled air is 16.3percent.
A solid block is attached to a spring scale. When the block is suspended in air, the scale reads 22.2N ; when it is completely immersed in water, What is the volume of the block
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