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The length of a hollow pipe closed at one end is 85.8 cm. There is a standing wave in the pipe with a wavelength of 26.4 cm. Which figure schematically represents this standing wave?
A meat baster consists of a squeeze bulb attached to a plastic tube. When the bulb is squeezed and released, with the open end of the tube under the surface of the basting sauce, the sauce rises in the tube to a distance h.
A rotating wheel requires 5.00 s to rotate 26.0 revolutions. Its angular velocity at the end of the 5.00-s interval is 99.0 rad/s. What is the constant angular acceleration (in rad/s) of the wheel
A 1250 W radiant heater is constructed to operate at 240 V. What is the resistance of the heating coil
in gaseous sodium chloride chloride ions have one more electron than they have protons and sodium ions have one more
A 4.30-kg ball is dropped from a height of 14.5m above one end of a uniform bar that pivots at its center. The bar has mass 6.50kg and is 4.60m in length. At the other end of the bar sits another 6.00-kg ball, unattached to the bar. The dropped ball ..
A 162 Ω resistor is connected to a variable power supply. What voltage will be required for a current of 0.6 A to flow in the resistor
A swimmer is distance D = 35 meter from a lightning strike in the water with I=78 kA. Find what is the current through the swimmer
A galvanometer has a full-scale current of 0.11 mA and a coil resistance of 57 Ω. This instrument is used with a shunt resistor to form an ammeter that will register full scale for a current of 74 mA. Determine the resistance of the shunt resistor.
an x-ray tube uses a 20000 volt difference to accelerate electrons across a 3cm gap between the plates of a parallel
Two crates connected by a rope of negligible mass lie on a horizontal surface. Create A has mass mA and crate has mB. calcuate the tension in the rope connecting the block
The electric field just above the surface of the charged drum of a photocopying machine has a magnitude E of 2.3 105 N/C.The drum has a length of 40 cm and a diameter of 11 cm. What is the total charge on the drum?
100 g ball of clay is thrown horizontally with a speed of 13m/s toward a 900g block resting on a frictionless surface. It hits the block and sticks. The clay exerts a constant force on the block during the 7 ms it takes the clay to come to rest re..
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