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the box accelerates down the surface at 2 m/s/s. what is the rotational inertia of the wheel about the axle.
Suppose that such a capacitor was made in the form of a parallel-plate capacitor with a vacuum between the plates and an electric field no greater than 7.00 106 V/m. What is the minimum area of the
Determine which of the following statements are true; the tangential speed (Vr) is a constant, the centripetal force required for the plane to stay on circular motion is (Fc = mac).
The smallest insects that a bat can detect are approximately the size of one wavelength of the sound the bat makes. What is the minimum frequency of sound waves required for the bat to detect an ins
A damped mass-spring system oscillates at 140 Hz. The time constant of the system is 2.0 s. At t = 0, the amplitude of oscillation is 8.6 cm and the energy of the oscillating system is then 86 J. (
What is the distance between the second order bright fringe of light with l = 684 nm and the third order bright fringe of light with l = 413 nm
3.60×1023 nitrogen molecules collide with a 18.0 wall each second. Assume that the molecules all travel with a speed of 410 and strike the wall head on. What is the pressure on the wall?
A single conducting loop of wire has an area of 6.8 10-4 m2 and a resistance of 110. At what rate (in T/s) must this field change if the induced current in the loop is to be 0.25 A?
A circular parallel-plate capacitor with a spacing of 3.2 mm is charged to produce a uniform electric field with a strength of 1.5 multiplied by 106 N/C. What plate radius is required if the stored
Two face each other louder speakers, f=160HZ, and one drivers twice power. A woman is a the midpoint between speakers, what is the maximum intensity and minimum intensity?
A small, 100 g cart is moving at 1.60 m/s on an air track when it collides with a larger, 5.00 kg cart at rest. After the collision, the small cart recoils at 0.890 m/s. What is the speed of the la
A constant magnetic field of magnitude 3.00 T is directed along the +y axis. Find the magnitude of the motional emf, and indicate which end (1 or 2) of the rod is positive.
A stone with a mass of 0.800 kg is attached to one end of a string 0.900 m long. The string will break if its tension exceeds 600 N . The stone is whirled in a horizontal circle on a frictionless t
A block of mass m1 = 1 kg rests on a table with which it has a coefficient of friction µ = 0.62. With what acceleration does the mass m3 fall?
A sled weighing 200 N is held in place on a frictionless 50.0 degree slope by a rope attached to a stake at the top of the slope. The rope is parallel to the slope. What is the normal force of the
A baseball is hit at ground level. The ball is observed to reach its maximum height above ground level 3 seconds after being hit. How high is the fence?
A circular saw blade completes 1200 revolutions in 40 rm s while coasting to a stop after being turned off. Assuming constant deceleration, what are (a) the angular deceleration and (b) the initial
He notes that a long pendulum extends from the ceiling almost to the floor and that its is 54 s. Determine (i)The period when the pendulum is taken to the moon where g=1.6m/s2.
A street lamp weighs 190 N. It is supported by two wires that form an angle of 120° with each other. The tensions in the wires are equal. (a) What is the tension in each wire supporting the stre
If the plates of the capacitor are pulled farther apart, do the following quantities increase, decrease, or remain the same? (a) the electric field between the plates.
A sculpture is 7.50m tall and has it CG located h=3m above the center of its base. The base is a square with a side of d=13.6 m. To what angle beta can be sculpture be tipped before it falls over?
What is the rotational inertia for rotation about an axis passing through the center of the square and perpendicular to the plane of the square?
What is the electrostatic potential at the center of the square? b) The negative charges are moved to infinity. What is the potential energy of the system now?
A 61.0 kg person jumps from rest off a 10.0 m high tower straight down into the water. Neglect air resistance during the descent. She comes to rest 3.00 m under the surface of the water. Determine
Susan's 10.0 kg baby brother Paul sits on a mat. Susan pulls the mat across the floor using a rope that is angled 30 ^circ above the floor. The tension is a constant 31.0 N and the coefficient of f