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A test tone used on a radio has a frequency of 993 Hz. What is the wavelength of this sound in air at normal room temperature (20 oC)? Record your answer to three decimal places.
A 3.5 cm x 1.6 cm x 7.1 cm block floats in water with its long axis vertical. The length of the block above water is 1.7 centimeter. Determine what is the block mass density
The current in a coil drops from 3.9 A to 1.8 A in 0.53 s. If the average emf induced in the coil is 12 mV, what is the self-inductance of the coil
One end of a brass bar is maintained at 300°C, while the other end is kept at a constant but lower temperature. What is the temperature of the bar at a point 0.15 m from the hot end
a series of pulses each of amplitude0.150m are sent down a string that is attached to a post at one end. the pulses are
Vector B has magnitude of 8.0 at an angle of -10.0 o from the x-axis. Let C=A+B. Let D=A-B. Let V=2*A-B. What is the x-component of vector C. What is the y-component of vector C.
a racquet ball with mass m 0.252 kg is moving toward the wall at v 18.1 ms and at an angle of 25deg with respect to
1.)What is the magnitude of the acceleration of an electron at a point where the electric field has magnitude 6495 N/C and is directed due west 2.)Is the direction of the acceleration west or east
A vertical container with base area measuring 16 cm by 18 cm is being filled with identical pieces of candy, each with a volume of 50 mm3 and a mass of 0.020g. Suppose that the volume of the empty spaces between candies is negligible.
The drawing shows an edge-on view of the solar panels on acommunications satellite. The dashed line specifies the normal tothe panels. Sunlight stikes the panels at an angle with respect to the normal.
A rope exerts a constant horizontal force of 250N to pull a 60 Kg crate across the floor.
a refrigerator has a coefficient of performance of 3.00. the ice tray compartment is at -20.0oc and the room
The displacement of a wave traveling in the positive x-direction is D(x,t)=(3.5cm)sin(2.7x?122t), where xis in m and t is in s. What is the frequency of this wave
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