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Constructive interference of sound waves occurs when:
The soundwaves are 0 degrees out of phaseThe sound wavesare 90 degrees out of phaseThe sound wavesare 180 degrees out of phaseThe sound wavesare 360 degrees out of phase
A boy gets ready to slide down an icy hill with his sled.Assume that the friction from the ground is negligible. How far will the boy have slid after 3 seconds with that acceleration
A horizontal beam of electrons initially moving at 4.0x10^7 m/s is deflected vertically by the vertical electric feild between oppositely charged parallel plates. the magnitude of the field is 2x10^4N/C. What is the verticle deflection d of the el..
When a metal is irradiated with 410-nm photons, the stopping potential is 1.2 eV. Find the cutoff wavelength (in nm) for this metal
a car weighs 2415 pounds and the rocket mounted on the car provides 1500 lbs of constant thrust. calculate the distance in feet traveled in this time
One radiator has a volume of 0.09mt³. It contains saturated vapor at a temperature of 100°C. find The total mass of vapor in the radiator
Two parallel plates, each of area 6.52 cm2, are separated by 3.00 mm. The space between the plates is filled with air. Calculate the magnitude of charge stored on each plate
how long does the block remain in contact.
A 53.6 kg crate is dragged across a floor by pulling on a rope attached to the crate and inclined 16.0° above the horizont, If the coefficient of static friction is 0.510, what minimum force magnitude is required from the rope to start the crate mo..
With the switch open the ammeter reads 1.00 A. What is the resistance of resistor R2 to an appropriate precision and what is the potential difference across R2 when the switch is open?
A cable is 5.00 m long and has a diameter of 1.50 mm. The tensile modulus of the cable is 2.50 × 1010 N/m2. A force is applied to the end of the cable and the cable stretches by 3.00 mm. What is the applied force?
An instructor wants to use a lens to project the real image of a light bulb onto a screen 1.23 m from the bulb. In order to get the image to be two times as large as bulb, what focal length lens will be required.
q1. a small wooden block with mass 0.900 is suspended from a lower end of a light cord that is 1.50 long. the block is
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