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Question: Imagine that Fig. is a snapshot of the wave traveling to the right along the string. At the exact moment that the photo is taken, what is the direction of motion of the string at point A? At point B? At point C?
Fig. - (a) Transverse wave on a string, (b) Longitudinal sound wave in a gas
When it rains water vapour in the air condenses into liquid water and energy is released. How much energy is released when 0.0244m of rain falls over an area of 2.59 x 10^6 m^2? If the average energy needed to heat one home for a year is 1.40 x 10^11..
Calculate the efficiency of a fossil-fuel power plant that consumes 450 metric tons of coal each hour to produce useful work at the rate of 900 MW
if a force of 500n is needed to stretch a spring 2 cm, what force is needed to stretch 5cm
you are to determine the power rating of the motor in an elevator system. the elevator with a full load weights 2000 kg
upon what properties of the sound wave do the a loudness b pitch and c quality of a musical note depend? why do the
a piece of rock reads 2.776 N on a scale when in air, but 1.893 N in a fluid of unknown specific gravity. what is the density of the fluid
A marble is dropped on the moon at a height of 1.4 meters. The acceleration of gravity on the moon is 1.671 m/s2. Hence determine the time for the marble to fall to the surface of the moon.
A temperature of absolute zero occurs at -273.15°C. Calculate this temperature on the Fahrenheit scale
A spherical capacitor contains a charge of 3.40nC when connected to a potential difference of 250V. Calculate the electric field just outside the surface of the inner sphere
If we assume that the wave spreads out evenly with no obstructions, what is the electric field strength at the base unit 100 feet from the phone
Two air-track gliders of eual mass are initially moving in the same direction along a straight line, what are the speeds and directions of the gliders after the collision
Velma passes Mort at a speed of 0.75c. At this speed, the "time dilation factor" is 1.5. In other words, Mort observes a 1-second tick of Velma's clock to take 1.5seconds. assume that they are born at the same time, and that Mort observes himself ..
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