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A sinusoidal wave is explained by the wave function y = 0.25 sin (0.30x 40t) where x and y are in meters and t is in seconds. Decide for this wave (a) the amplitude, (b) the angular frequency, (c) the angular wave number, (d) the wave speed, (e) the wavelength, and (f) the direction of motion.
A 13.1 k? resistor and a capacitor are connected in series and then a 12.0 V potential difference is suddenly applied across them, Calculate the time constant of the circuit
The electric field midway between two equal but opposite point charges is 672N/C , What is the magnitude of the charge on each
A 50kg pullvolter running at 10 m/s vults over the bar. Her speed when she is above the bar is 1 m/s. estimate her altitude as she crosses the bar
A certain corner of a room is selected as the origin of a rectangular coordinate system. If a fly is crawling on an adjacent wall at a point having coordinates (2.0, 1.0), where the units are meters, what is the distance of the fly from the corner of..
A yo-yo is made of two solid cylindrical disks, each of mass 0.051 and diameter 0.080 , joined by a (concentric) thin solid cylindrical hub of mass 0.0049 and diameter 0.012. What fraction of its kinetic energy is rotational
Consider an atom with four (and only four) energy levels. Suppose that the four energy levels were somehow evenly spaced. How many spectral lines would result
q1. a lightbulb emits a spherical wave. if the intensity of the emitted light is 1.2 wm2 at a distance of 2.5 m from
A fan blade, whose diameter is 1.0 m, is turning with an angular velocity of 2.0 rad/s. What is the tangential velocity of a point on the tip of the blade
a 3.77-kg ball of clay is thrown downward from a height of 3.47 m with a speed of 4.81 ms onto a spring with k 1690
A certain type of laser emits light that has a frequency of 6.0 × 1014 Hz. The light, however, occurs as a series of short pulses, each lasting for a time of 2.8 × 10-11 s. How many wavelengths are there in one pulse
A pot containing 1.02 liter of water, initially at 18°C, is placed on a1030 W electric heating element. How much heat should be supplied to the water to bring it to a boil? How much heat is necessary to boil all the water away?
A Carnot engine takes an amount of heat QH = 111 J from a high-temperature reservoir at temperature TH = 1030 °C, Find the amount of work that is obtained from this process
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