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A proton is shot at 5.0x10^7 m/s toward a gold target. Thenucleus of a gold atom, with a mass 197 times that of the proton,repels the proton and deflects it straight back with 90% of itsinitial speed. What is the recoil speed of the goldnucleus?
assume that the microwave radiation has a wavelength of 11.2 cm. How many photons are required to heat 235 mL of coffee from 25.0 ^circ rm C to 62.0 ^circ rm C.
find the magnitude of the initial acceleration. At what height above the surface of the earth does the balloon have a speed of 7.30 m/s.
In a series L-R-C circuit, the components have the following values: L = 18.0 mH, C = 170 nF, and R = 380 ohms. The generator has an rms voltage of 120 V and a frequency of 1.25 kHz. Determine the average power supplied by the generator. P=_____W Det..
You were driving a car with velocity ‹ 19, 0, 11 › m/s. You quickly turned and braked, and your velocity became ‹ 13, 0, 15 › m/s. The mass of the car was 1200 kg. What was the (vector) change in momentum
Assume that radiant energy from the sun arrives at your location with an intensity of 850 W/m2. In this EM radiation, what are the maximum values of the radiated electric and magnetic fields?
A homemade capacitor is assembled by placing two 9-in. pie pans 4cm apart and connecting them to the opposite terminals of a 6-V battery, Estimate the work done by the battery to charge the plates
question1illustration on eratosthenes process if two observers are due north and south of each other and are detached
A shop sign weighing 245-N is supported by a uniform 155-N bean. Find out the tension in the guy wire, and the horizontal and vertical forces exerted by the hinge on the bean.
The speed of oxygenated blood in the artery of a healthy person is measured to be 0.12 m/s. by what percent has the artery area been blocked by plaque
consider two ZAMS stars: 09 and B0. The effective temperature of the 09 star is 34,500 k. Assuming a hydrogen density of 10^8 m^-3, and Alpha = 3.1 x 10^-19 m^3 s^-1, estimate the Stromgren radius of the stars in pc and AU
Light traveling in air enters a material at an angle of 50 degrees with respect to the normal. Calculate the index of refraction of the material
A force of 715 N is applied to a roller-coaster car to push it horizontally. If 2.72 X 10^4 J of work is done on car, how far has it been pushed.
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