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6-lb collar C is attached to a spring and can slide on rod AB, which in turn can rotate in a horizontal plane. The mass moment of inertia of rod AB with respect to end A is 0.35 lb . ft . s 2 . The spring has a constant k = 15 lb/in. and an undeformed length of 10 in. At the instant shown the velocity of the collar relative to the rod is zero and the assembly is rotating with an angular velocity of 12 rad/s. Neglecting the effect of friction, determine
(a) the angular velocity of the assembly as the collar passes through a point located 7.5 in. from end A of the rod,
(b) the corresponding velocity of the collar relative to the rod.
A proton orbits a long, uniformly charged wire, making 1.6×10^6 revolutions per second. The radius of the orbit is 1.8 cm. What is the wire's linear charge density
A soccer player kicks a rock horizontally off a 34.0-m-high cliff into a pool of water. what was the initial speed given to the rock
An ideal gas in a container is at a temperature of 92.2°C. What is the average translational kinetic energy of a gas molecule
a 1.87-m-long 552 g rope pulls a 4.4 kg block of ice across a horizontal frictionless surface. the block accelerates at
An electric heater consumes electrical energy at a rate of P = 350 W, What is the maximum power that could be drawn if the circuit contained a circuit breaker that limited the current to no more than 5 A
A total charge of 100 coloumbs flows past point A in a circuit in 4 seconds. calculate the current at point A
In a certain RLC circuit, the RMS current is 5.27 A, the RMS voltage is 228 V, and the current leads the voltage by 52.1degrees. What is the total resistance of the circuit
A 10 g bullet traveling at 430m/s strikes a 11kg , 1.1-m-wide door at the edge opposite the hinge. What is the angular velocity of the door just after impact
A ladder of weight 200 N and length 10 meters leans against a smooth wall (no friction on wall). The ladder makes an angle 50.0° with the ground. A fire fighter of weight 600 N climbs a distance x up the ladder. The coefficient of friction among the ..
A 5.5 ohm resistor, a 11.3 ohm resistor and a 11 ohm resistor are connected in series with a 36 V battery. If the resistors are instead connected in parallel across the battery, what is the equivalent resistance
an electron is accelerated through 1.60 x 103 v from rest and then enters a uniform 2.80-t magnetic field.a what is
The current in the coil above is adjusted to produce a fieldstrength of 2.0 mTesla. The axis of the coil is horizontal andalong the east-west direction. Find the direction of the net field from both sources
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