What was the initial speed of the bb
A boy shoots a BB gun horizontally at a target 14 m away. The gun is aimed directly at the center of the target, but the small metal BB hits 56 cm lower. Neglecting any air resistance, what was the initial speed of the BB.
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Two narrow slits are 0.12 apart. Light of wavelength 550 illuminates the slits, causing an interference pattern on a screen 1.0 away. Light from each slit travels to the maximum on the right side of the central maximum.
A door partially open, has its normal making an angle of 53 deg to the direction of the electric field. If the area of the door is 2 m2. What is the flux passing through the door?
An unknown mass of silver is dropped into a bucket containing 3 kg of water. The silver is heated to 689 K before being immersed in the water, and the water is initially at 0 C. The system comes to rest at 303 K. Ignoring any heat lost to the buck
The solar corona is an extended atmosphere of hot 2*10^6 K gas surrounding the cooler visible surface of the Sun. The gas pressure in the solar corona is about 0.03Pa. What is the coronal density in particles per cubic meter?
Two ropes in a vertical plane exert equal magnitude forces on a hanging weight but pull with an angle of 86.0 ^circ between them.
Compute the wavelength in air of ultrasound with a frequency of 44 kHz if the speed of sound is 344 m/s.
Yellow light strikes a diamond at a 46.0° angle of incidence and is refracted when it enters the diamond. Blue light strikes a piece of flint glass and has the same angle of refraction as does the yellow light in the diamond. See Table 26.2 fo
Compare and contrast the clean-up of the Exxon Valdez tanker spill vs the B.P. oil spill. Which of the types of shoreline (marsh, sandy beach, or gravel beach/rock) will sustain the longest lasting damage?
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