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The magnetic flux through each loop of a 75-loop coil is given by (8.8t-0.5It^3) Tm2 where the time is in seconds. Determine the induced emf as a function of time
A 58 g tennis ball is served at 40 m/s. Find the de Broglie wavelength of the tennis ball
A reflecting telescope has a main mirror with fM = 620 mm. If an eyepiece with a magnification of 15 is used, what is the total magnification of the telescope
An antifreeze solution is made by mixing ethylene glycol (?= 1116 kg/m3) with water. determine the volume percentage of ethylene glycol in the solution
A resistor, capacitor and inductor are connected in series to an ac source with a frequency of 30 Hz and an rms potential of 40 V. What is the resonance frequency for this circuit
The aorta carries blood away from the heart at a speed of about 40 cm/s and has a radius of approximately 1.1 cm. determine the approximate number of capillaries in the human body
A solar collector is placed in direct sunlight where it absorbs energy at the rate of 880 J/s for each square meter of its surface. What equilibrium temperature does the collector reach
The potential difference across a resting neuron in the human body is about 70 mV, How much power does the neuron release
A pot containing 1.03 liters of water, initially at 19*C, How much heat must be supplied to bring it to a boil
A loud speaker diaphragm is producing a sound for 2.5s by moving back and forth in simple harmonic motion. How many times does the diaphragm move back and forth
The pendulum is now swinging on Pluto. Calculate the new period of oscillation in terms of T, knowing that on Pluto the gravity is 1/16 of gravity on the Earth
A camera flash delivers 2.9 kW of light power for 1.3 ms. Find the total momentum carried by the flash
The rotor in a certain electric motor is a flat, rectangular coil with 84 turns of wire and dimensions 2.45 cm by 4.04 cm. The rotor rotates in a uniform magnetic field of 0.800 T. Find the peak pow
If the atom could be enlarged to the size of a football field, and the electrons were represented by gnats, how large would the nucleus be
Electrons in a photoelectric experiment emerge from an aluminum surface with a maximum kinetic energy of 1.3eV
A broken-down spaceship (Star Wreck?) flies across an international soccer field, How long does the spaceship pilot measure the field to be
A person weighing 119 pounds can run up 500 steps, How much power did the person expend running up the steps
An elevator can lift a 125 N aircraft a distance of 22 meters in 12 s. What is the power output of the elevator
An electron moves to the right with a speed of 0.84c relative to the laboratory frame. Find the speed of the proton relative to the laboratory frame
A soldier has a huge contraption that notches a large 4 kg arrow (it looks more like a lance) in a massive bow and uses a winch system to draw the arrow back to set the bow. What is the speed of the
A rail car that weighs 35 N is accelerated at 7.7 m/s/s for 5.6 seconds. How much work is done on the rail car
A uniform ladder of length L and mass m leans against a frictionless vertical wall, making an angle of 48° with the horizontal. how high can you climb before the ladder begins to slip
A 6.00 kg ball is dropped from a height of 11.0m above one end of a uniform bar that pivots at its center. The bar has mass 7.50kg, How high will the other ball go after the collision
A 237 kg cart runs into the rear end of a 120 kg cart that is stationary. What is the speed of the moving cart before the collision
As you zip through space in your PPS (personal propulsion suit), your pulse rate, as you count it, is 115 bpm, How fast are you moving with respect to the Moon