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A large tank opens to the air full of water has a small hole in it 2.0 m from the top. How fast is the water shooting horizontally of the hole
3 charges (q1=2q, q2 = 3q, q3=-q ) where q = 1c , are arranged to form an equilateral triangle that is 10 cm on a side. What is the electric feild in the middle
A block of mass m is attached to a spring (spring constant k)which is attached to a wall, find the amplitude of the resulting simple harmonic motion?
A horizontal circular platform rotates counterclockwise about its axis at the rate of 0.877 rad/s. You, with a mass of 70.5 kg, compute the total angular momentum of the system
a car initially running at 10 m/s applies brake and stops in 10 secs. What is the deceleration produced by the brakes
The electric field of a sinusoidal electromagnetic wave obeys the equation , find the amplitude of the electric field of this wave
The primary coil of a transformer has N1= 300 turns, and the secondary coil has N2= 1810 turns. find rms voltage is developed across the secondary coil?
A light rope 5m long supports a 30kg mass against gravity. What is the mass per unit length of the rope
The LC circuit of a radar transmitter oscillates at 30.2 GHz. What is the inductive reactance of the circuit at this frequency
A series RLC circuit has a resistance of 24 ? and an impedance of 105 ?. what average power is delivered to the circuit
A generator consists of one thousand loops of wire, each enclosing an area 90.cm^2, rotating 50. times per second in a uniform field of 0.15T. Determine the value of effectvie output voltage
A source delivers an AC voltage of the form ?v = 92.2 sin (60?t), Find the rms voltage of the source
A Styrofoam box has a surface area of 0.83 m2 and a wall thickness of 2.0 cm. The temperature of the inner surface is 5.0°C, determine the thermal conductivity of the Styrofoam.
A high intensity desk lamp is rated at 45 W and 12 Volts. It contains a transformer in its base that converts 120 V household voltage to the needed level. What is the current in the primary when the
Two lenses, one converging with focal length 20.5 cm and one diverging with focal length - 12.0cm , are placed 25.0 cm apart. Determine the magnification of the final image formed
The potential difference across a resting neuron in the human body is about 105.0 mV, How much power does the neuron release
A wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 40 at 20°C. what is the temperature coefficient of resistivity
5 kg of water at 60 degrees are put in contact with 1 kg of ice at 0 degrees and are thermally isolated from everything else. What is the change in entropy of the universe while the ice melts
Project Seafarer was an ambitious program to construct an enormous antenna, buried underground on a site about 10000 km2 in area. What would be the frequency of the radiations emitted
5 moles of an ideal gas, initially at P=105 Pa and V=3m3, expand adiabatically until the volume is doubled, How much work was done in the adiabatic step
A recording engineer works in a soundproofed room that is 50.0 dB quieter than the outside. what is the intensity outside
A mass of 1 kg is hung vertically from a spring stretching the spring .20 m. It is then pulled .10 m below its equilibrium position, find the time to make one complete cycle
A 1.30 m long ramp is inclined at 14 degrees to the horizontal. A solid ball is released from rest at the top of the ramp. Find the ball's speed at the bottom of the ramp
Your little sister (mass 25.0 kg) is sitting in her little red wagon (mass 8.65kg ) at rest. You begin pulling her forward, Calculate the impulse you imparted to the wagon and its passenger
A blue puck with a mass of 4.30×10?2kg , sliding with a speed of 0.190m/s on a frictionless, horizontal air table, Find the direction of the velocity of the red puck after the collision