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As the driver steps on the gas pedal, a car of mass 1 180 kg accelerates from rest. During the first few seconds of motion, the car's acceleration increases with time according to the expression below, where t is in seconds and a is in m/s2. a = 1.19 t - 0.210 t^2 + 0.240 t^3
(a) What is the change in kinetic energy of the car during the interval from t = 0 to t = 2.60 s?
(b) What is the minimum average power output of the engine over this time interval?
The magnetic field component of the electromagnetic wave is 15.0 microT. What is the magnetic energy density of the wave
A 10 kg block of ice has a temperature of -10°C. The pressure is one atmosphere. The block absorbs 4.17 106 J of heat. What is the final temperature of the liquid water
Astronomers discover a binary star system that has a period of 93.0 days. The binary star system consists of two equal-mass stars, each with a mass twice that of the sun, that rotate like a dumbbell about the centre of mass at the midpoint between..
find the lenght of electromagnetive waves if end of frequency omega 10 in 5 hertz omega and absonant is 885 15 perimeter
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in a vacuum, a certain light has a wavelength ?0 = 589 nm and travels at speed c = 3.00x10^8 m/s. What is its speed if traveling in sodium chloride
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