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An RC circuit is connected across a DC voltage source through an open switch. The switch is closed at t=0s. Which of the following is correct statement regarding this circuit?
An 80 mm segment of wire is at an angle of 53 degrees south of a westward, 2.3-T B field. What is the magnitude of the current in this wire if it experiences a force of 2 N directed out of the paper
A 3.00 kg mass is attached to this spring and released from rest after stretching the spring 2.00 m. What is the speed of the mass when the spring returns to its equilibrium length?
A 1.00-kg mass is attached to a spring hanging vertically and hangs at rest in the equilibrium position. The spring constant of the spring is 1.00 N/cm.
The magnitude of the drag force on a 20.0-kg object is proportional to its speed. The object has a terminal velocity 80 m/s. What is the magnitude of the drag force on the object when it is falling
A constant force of 20 N is applied to an object of mass 8.0 kg at an angle of 25° with the horizontal. What is the work done by this force on the object if it causes a displacement of 2.0 m al
An object is acted on by a drag force with a magnitude that is proportional to the speed. The object accelerates downward at 3.00 m/s2 when it is falling with a speed 20.0 m/s. What is the terminal
A 1000-kg car is picking up speed as it goes around a horizontal curve whose radius is 100 m. The coefficient of static friction between the tires and the road is 0.350. At what speed will the car b
A car travels around 200 m radius flat curve at 40 m/s at constant speed. What is the minimum static coefficient of friction which allows it to travel at this speed without sliding?
A 2-kg ball is moving with a constant speed of 5 m/s in a horizontal circle whose radius is 50 cm. What is the acceleration of the ball?
A box is sliding down an incline tilted at an angle 14.0° above horizontal. The box is sliding down the incline at a speed of 1.70 m/s. The coefficient of kinetic friction between the box and th
A 55.0-kg box rests on a horizontal surface. The coefficient of static friction between the box and the surface is 0.300. What horizontal force must be applied to the box for it to start sliding alo
If you pressurize the gas at a constant temperature, how much work must be done on the gas? Give you answer in Joules to four significant digits.
Assuming the voltage supplied to the outlet is 120V from the power company, can you plug in thee of these into the power strip if it has a fuse rated at 12A. If so, what devices can you plug in? ple
A 3.0 K ohms resistor is connected in series with a capacitor at time T=0. Its fully charged and at a voltage of 24V. What is the time constant of this circuit?
Also calculate the power supplied by the battery in the series circuit, what should that power be?
You are tuning an out of tune organ pipe to a tuned pipe of middle C (261.63 Hz). You hear a beat frequency of 2 beats/second. When you make the pipe a little longer, you notice that the beat freque
After a long time, what is the voltage across the capacitor and the current through the resistor?
Write down the wave function for this system for a standing wave of amplitude A and describe the boundary conditions.
It is found experimentally that the electric field in a certain region of Earth's atmosphere is directed vertically down. At a certain location, at an altitude of 508 m the electric field has magnit
Describe how you would connect a voltmeter to measure the potential difference across a resistor and an ammeter to measure the current though a resistor.
Three charged particles with q1= -50 nanocoulomb, q2= +50 nanocoulomb, q3= +30 nanocoulomb are placed in a triangle. q1 and q2 are 10 cm apart horizontally and q3 is exactly between the two charges.
The values of the charges are q1= +2 microcoulomb, q2= -1 microcoulomb, q3= +1 microcoulomb, and q4= +3 microcoulomb. What is the net electrostatic force along the x axis acting on charge q1 due to
A 0.525 kg ball starts from rest and rolls down a hill with uniform acceleration, traveling 200m during the second 10.0 \rm s of its motion. How far did it roll during the first 4.00s of motion?
A person with a mass of 50 kig is holding on to a rope of 15 kg which is attached to the ceiling. Note that the person is in midair Draw a free body diagram of the person and the rope. Clearly draw