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Two cylindrical glass beads each of mass m = 32 mg are set on their flat ends on a horizontal insulating surface separated by a distance d = 3 cm. The coefficient of static friction between the beads and the surface is μs = 0.3. The beads are then given identical charges (magnitude and sign). What is the minimum charge needed to start the beads moving?
A 20 g ball is fired horizontally with initial speed v_0 toward a 110 g ball that is hanging motionless from a 1.10 m-long string. The balls undergo a head-on, perfectly elastic collision, after which the 110 g ball swings out to a maximum angle t..
A38.0-kg child takes a ride on a Ferris wheel that rotates four times each minute and has a diameter of20.0m. What force does the seat exert on the child at the highest point of the ride
At 20.0°C, a mainly silicon resistor has a resistance of 665 ?, and a tungsten resistor has a resistance of 752 ?. At what temperature will their resistances be equal
The collision is not head-on. After the collision, the two pucks fly apart with the angles shown in the drawing. Find out the final speed of puck A also Find out the final speed of puck B. m/s
The rms speed of the molecules in 1.5g of hydrogen gas is 1800m/s . A:What is the total translational kinetic energy of the gas molecules, what is the rms speed of the molecules
A 3.90-kg object is attached to a spring and placed on frictionless, horizontal surface. Find the total energy of the oscillating system
A 12.0-? resistor, a 12.0-µF capacitor, and a 17.0-mH inductor are connected in series with a 150-V generator, What is the maximum value of the rms current
What should be the minimum initial speed of the dart so that combination makes a complete circular loop after the collision. find the minimum diameter of the raft that would prevent the diamond from being seen.
Define how Pascal's law addresses the pressure in a fluid at different heights (or depths) before addressing the question and would you apply it in this case
A point source of light is located at the bottom of a steel tank, and an opaque circular card of radius 5.7 cm is placed over it. What is the index of refraction of the fluid
An uncharged capacitor is connected to the terminals of a 3.0 battery, and 12 flows to the positive plate. How much additional charge flows to the positive plate
A rock is tossed straight up with a speed of 29{\rm m}/{\rm s}. What is the rock's velocity as it hits the bottom of the hole
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