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Suppose that you hear a clap of thunder 15.5 s after seeing the associated lightning stroke. The speed of sound waves in air is 343 m/s and the speed of light in air is 3.00 multiplied by 108 m/s. How far are you from the lightning stroke?
km
A plane flies 429 km east from city A to city B in 45.0 min and then 969 km south from city B to city C in 1.40 h, find its average speed (in km/h)
A set of crash tests consists of running a test car moving at a speed of 13.0 m/s (28.6 m/h) into a solid wall. Calculate the size of the average force which acts on the dummy during that time
Two equal length strips of aluminum and steel are heated. Which expands more? How much more - that is, by what factor is one expansion greater than the other?
A particular vacuum flask has a mass of 1 kilogram and contains 1 liter of liquid water, what is the speed of the empty flask, Assume its initial velocity is zero
From a height of 35.5m , a 1.50kg bird dives (from rest) into a small fish tank containing 53.5kg of water. What is the maximum rise in temperature of the water
A student makes a simple generator by using a single square loop 24 cm on each side. The loop is then rotated at a frequency of 60 Hz in a magnetic field of 0.044 T.
The work done by an external force to move a -8.90charge from point a to point b is 1.80×10?3 . If the charge was started from rest and had 4.87×10^4 of kinetic energy when it reached point b, what must be the potential difference between a and b?
An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.60 mm. An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.60 mm.
A 32.5-g glass thermometer reads 24.1?C before it is placed in 131mL of water. What was the original temperature of the water
How long does the total trip last
An 84.4-mH inductor and a 6.27-µF capacitor are connected in series with a generator whose frequency is 361 Hz. Determine the rms voltage across the inductor
The value of the magnetic field for a certain type of electromagnetic wave is 2.12 ?T. What is the value of the electric field for that wave
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