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How does the speed of a falling object differ from being dropped in air vs being dropped in a vacuum?
A line of charge lies along the x-axis extending from x=0m to x=3m. The line charge densit is a function of the distance from the coordinate beginning x and is given by λ=2x [nC/m]. Find the total charge of the line charge Q.
A capacitor consists of two concentric conducting spherical shells with radii R1 and R2 = 4.0R1. It has capacitance C = 4.0 pF, and is charged to a potential difference of 60.0 V. by what factor does the stored energy change
A thin, uniformly charged spherical shell has a potential of 646 Volt on its surface. Outside the sphere, at a radial distance of 15 centimeter from this surface, the potential is 438 Volt. Compute what the total charge on the sphere
A cannon fires a 7.120kg projectile at 36.75 degrees. Theprojectile lands in a cart that is on the same level surface as thecannon. how fast was the projectile fired
A ray of light strikes a flat, 2.00-cm-thick block of glass (n = 2) at an angle of ? = 8.7° with respect to the normal, Find the angle of refraction at the top surface
Steam at 18 MPa and 600 C is contained in a cylinder of volume 0.5 m^3. Calculate the heat rejcted by the steam
A 120 g insulated aluminum cup at 17 C is filled with 140 g of water at 40 C. After a few minutes, equilibrium is reached. A)Determine the final temperature. B)Estimate the total change in entropy.
A box is pulled along the floor with a rope. The tension in the rope is 120 N and the rope makes an angle of 50 degree with respect to the ground. Determine the velocity of the box
A 1 m long wire, fixed at both ends, is supporting a standing wave with 3 anti-nodes, and a frequency of 500 Hz. what is the tension on the wire
A heat engine has a source of 1400.0 cal and lose 300 cal converting it into work. How much mechanical work was done?
I was very nearly hit by a car. Fortunately, the car honked its horn and I jumped out of the way. But I noticed that the frequency of the horn as the car approached me was a factor 1.171 higher than its frequency after the car passed me and was m..
A bullet is fired horizontally at 800 m/s and strikes a target that is 160 m from the gun. If the marksman hears the sound of the impact on the target 0.67 s after he fires the gun, what is the speed of sound?
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