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A pendulum bob with a mass of 0.39 kg is attached to a 1.5 m long string as shown. As the pendulum bob swings from point A, where the angle is (theta) =37 degrees, to point B at the bottom of its arc, decide the change in its gravitational potential energy.
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you are designing a delivery ramp for crates containing exercise equipment. the crates of weight 1510 n will move with
Find the frequency in terahertz of visible light with a wavelength of 485 nm in vacuum. What is the wavelength in centimeters of electromagnetic microwave radiation whose frequency is 7.61 GHz?
the wavelength of a light wave is 700nm in air this light appears red. if this wave enters a pool of water its
Potassium iodide has an interplanar spacing of d = 0.296 nm. A monochromatic X-ray beam shows first-order diffraction maximum while the grazing angle is 7.8°. Compute the X-ray wavelength λ .
An 78.8-mH inductor and a 6.27-µF capacitor are connected in series with agenerator whose frequency is 367 Hz. Therms voltage across the capacitor is 2.22V. Determine the rms voltage across the inductor.
On a cold day, 26800 Joule of heat leaks out of a house. The inside temperature is 21 °C, and the outside temperature is -24°C. Obtain the increase in entropy of the universe
Light of wavelength 5.10 multiply.gif 102 nm passes through a slit of width 0.210 mm. Determine the width of the first-order bright fringe
A speeder is pulling directly away and increasing his distance froma police car that is moving at 25.1 m/s with respect to the ground.The radar gun in the police car emits an electro magnetic wave witha frequency of 7.16E+9 Hz.
A 1.10x10 kg car starts from rest and accelerates for 5.00s. The magnitude of the acceleration is a = 4.60 m/s . Determine the average power generated by the net force
A transformer on a pole near a factory steps the voltage down from3600 V (rms) to 120 V (rms). compute the power delivered to the primary
a 200g mass lying on a frictionless table is attached to a horizontal spring with a spring constant of 400 N/m. what is the kinetic energy of the system when the mass returns to the equilibrium position after being released
An electron of mass, m, collides with an atom of mass M. The atom is initially at rest, What is the minimum speed of the electron in order to excite the atom
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