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A 256Hz sound wave in 20°C air propagates into the water of a swimming pool. What are the water-to-air ratios of the wave’s frequency, wave speed and wavelength?
what is the maximum mass it can support in freshwater. find the maximum height of the projectile is equal to its horizontal range.
A metal ball with a mass of 2 g, a charge of 1 uC, and a speed of 42 m/s enters a magnetic field of 16 T. What is the maximum acceleration of the ball
Space vehicles traveling through Earth's radiation belts can intercept a significant number of electrons, Find the resulting surface charge density
during a racing event a 110 kg car accelerates from 0 to 29 m/s in 4.3 seconds. what is the net force exerted on the car
An x-ray photon of wavelength 0.179 nm collides with an electron initially at rest. Calculate the Compton shift in wavelength
Helium-neon laser light of wavelength 1004.5 nm is sent through a 0.473 mm wide single slit. What is the width of the central maximum on a screen 1.58 m from the slit? Answer in units of mm
a 30 kg crate is pulled across a flat floor with 80 n of force. the coefficient of kinetic friction between the crate
Your task in physics lab is to make a microscope from two lenses. One lens has a focal length of 2 cm, the other a focal length of 1 cm. What will be the magnification of your microscope
Place the light source with the object at 0 cm on the optical rail. Where is the position of the image?
In the semiconductor industry, an insulating layer can be built onto silicon devices by oxidizing the silicon to form silica, SiO2, Write down a balanced equation for the reaction between silica and HF.
A particle with a charge of 33.2 µC moves with a speed of 61.8 m/s in the positive x direction. What is the direction of the magnetic force on the particle relative to the positive z-axis
A glass is slid across a table top, goes off the edge and falls to the floor below. With what velocity did the glass leave the table top
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