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Find the number of revolutions the wheel makes in coming to rest. The moment of inertia of the wheel is 0.24 kg*m and its radius is 0.32 m.
On the average how many atoms were abrated from the ring during each second of your marriage? The atomic mass of gold is 197 u.
The magnitude of the magnetic field varies with time as given by B=50sin(10(pi)t)mt where t is measured in seconds. What is the magnitude of the induced current in the coil at time t=0.10s?
A current of 1A is injected into the earth at the bottom of a borehole. Derive an expression for the Voltage at distance R from the injection point.
As a pair of workmen begin lifting it, does the support force on the crate provided by the ?oor increase, decrease, or remain unchanged? What happens to the support force on the workmen's feet?
Far in space, where gravity is negligible, a 430 kg rocket traveling at 75 m/s fires its engines. The figure below shows the thrust force as a function of time, with the horizontal axis in 8 s incr
At t = 0, y = 0.070 m, the velocity dy/dt is zero and the acceleration is 0.0982 m/s2. As t → ∞ the velocity approaches 0.460 m/s. What is the value of Y in MKS units?
(a) Find the power the toaster converts when it is at its operating temperature. Your response differs from the correct answer by more than 10%. Double check your calculations. W (b) What is the final
Estimate the average power of a water wave when it hits the chest of an adult standing in the water at the seashore. Assume that the amplitude of the wave is 0.60m
After a fourth unmeasured displacement, she finds herself back where she started. Determine the magnitude and direction of the fourth displacement.
A person stands between two speakers connected to the same source. Each speaker produces a tone with a frequency of 200 Hz on a day when the speed of sound is 330 m/s. The person is 1.65 m from one
Calculate the atomic packing fraction (APF) for the following structure, given the radius of gallium ion of 130 pm and arsenide ion of 115pm. i) GaAs (for a single unit cell)
The helical molecule acts like a spring and compresses 1.01% upon becoming charged. Determine the effective spring constant of the molecule.
A diver stands at rest at the end of a 35 kg diving board. Find the total torque due to gravity on the diving board. Assume the mass of the board is uniformly distributed. (Assume that the mass of
A basketball player releases the ball 7 ft above the floor when he is 30 ft from the basket. The ball goes through the rim of the basket (which is 10 ft above the floor) 1.5 seconds after release.
The second train and moves with a speed of 32 m/s, blows a horn whose frequency is 124 Hz. If the frequency heard on the second train is 135 Hz, what is its speed?
The magnetic flux that passes through one turn of a 12-turn coil of wire changes to 4.0 from 9.0 Wb in a time of 0.050 s. The average induced current in the coil is 230 A. What is the resistance of
A 20 g rifle bullet traveling 250 m/s buries itself in a 3.0 kg pendulum hanging on a 3.0 m long string, which makes the pendulum swing upward in an arc. Determine the vertical and horizontal compo
Using Snell's law, convince someone that for total internal reflection to happen, that the index of refraction for the incident material has to be greater than the index of refraction for the refra
How much energy is required to remove a neutron (mn = 1.008 665 u) from that has an atomic mass of 15.000 108 u to make that has an atomic mass of 14.003 074 u?
An iron rod and a zinc rod have lengths of 25.55 cm and 25.50 cm, respectively at 0 degree Celsius. At what temperature will the rods have the same length? The coefficient of expansion of iron and
A +5.00 -μC point charge is moving at a constant 8.50×106 m/s in the +y direction relative to a reference frame. At the instant when the point charge is at the origin of this reference fra
what is the linear speed of the tip of the propeller, at radium 1.5 m as seen by the pilot b an observer on the ground (the plane's velocity is parallel to the propeller's axis of rotation)
What is the bulk modulus of oxygen if 32.0 g of oxygen occupies 22.4 L and the speed of sound in the oxygen is 317 m/s?
Suppose that block m = .050kg, sometime after reaching the base of the incline, undergoes a completely inelastic collision with the stationary block M = .075kg. Use the principle of conservation of