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The outer surface the membrane of a spherical cell has a potential which is 60 millivolts higher than the inner surface. What is the capacitance of the cell
A 600.0-N bricklayer is 1.5 m from one end of a uniform scaffold that is 7.0 m long and weighs 800.0 N. calculate the force on each end
A 2.55 kg steel ball strikes a wall with a speed of 10.0 m/s at an angle of 60.0° with the surface. what is the average force exerted on the ball by the wall
Suppose that each vehicle is initially moving at 9.60 m/s and that they undergo a perfectly inelastic head-on collision. what force does the seat belt exert on each driver
A ball of mass 0.120 kg is dropped from rest from a height of 1.25 m. It rebounds from the floor to reach a height of 0.600 m. What impulse was given to the ball by the floor
A rifle with a weight of 25 N fires a 4.0 g bullet with a speed of 290 m/s. Find the recoil speed of the rifle
A particle is to move in an xy plane, clockwise around the origin as seen from the positive side of the z axis. In unit-vector notation, what torque acts on the particle
A horizontal vinyl record of radius 0.0862 m rotates freely about a vertical axis through its center with an angular speed of 4.82 rad/s. What is the angular speed of the record immediately after the
A LASIK vision correction system uses a laser that emits 10 ns-long pulses of light, each with 2.5 mJ of energy. What is the average power of each laser pulse
Assuming that the bond energy holding together a water molecule is typical, estimate how many molecular bonds could be broken with this energy
A 12.8-kg monkey hangs from a cord suspended from the ceiling of an elevator. What was the direction of the elevator's minimum acceleration
A 22 mH inductor is connected across an AC generator that produces a peak voltage of 11 V. What is the peak current through the inductor
The primary coil of a transformer is connected to a 120V/60 Hz wall outlet. What is the rms current in the primary coil
Find the linear momentum and kinetic energy of a truck of mass 1.00 104 kg moving at a speed of 18.0 m/s
A boy of mass 50.5 kg is initially on a skateboard of mass 2.00 kg, moving at a speed of 10.3 m/s. Find the final velocity of the skateboard
On a frozen pond, a 10kg sled is given a kick that imparts to it an intial speed of v0 = 2.0m/s. Use the work-energy theorem to find the distance the sled moves before coming to rest
An evacuated spherical diving bell containing a camera is in the ocean at a depth of 115 m. Find the magnitude of the total force on the port
A 1.00 M resistor and a 3 µF capacitor are connected in series with a 13.5 V power supply. What is the time constant for the circuit
A resistor with resistance 510 ? is in a series with a capacitor of capacitance 6.5 × 10-6F. What capacitance must be placed in parallel with the original capacitance
The 1400 turn coil in a dc motor has an area per turn of 1.1 multiplied by 10-2 m2. What is the current in the coil
Two long, parallel wires, each with a mass per unit length of 44 g/m, are supported in a horizontal plane by 6.0-cm-long strings, Determine the magnitude of each current
A wooden plank of length L and mass m is supported by an axle that passes through its center. Find the angular acceleration of the system
Suppose a stone is thrown upward with an initial velocity of 44 ft per second and is released 4 ft above the ground. After how many seconds does the stome reach it maximum height and what is the heigh
A 30 Ib backpack is thrown at the student, who reaches out 1.5 ft from their center line to grap the backpack. Now the system rotates at 15 rad/s. What was the initial linear speed of the backpack?
Determine the internal normal force, shear force, and moment at points C and D of the beam.