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A cylindrical glass of water (H2O) has a radius of 3.96 cm and a height of 13.6 cm. The density of water is 1.00 g/cm3. How many moles of water are contained in the glass?
A 5000 kg helicopter accelerates upward at 0.50 m/s2 while lifting a 2000 kg car. What is the lift force exerted by the air on the rotors? Evaluate the tension in the cable that connects the car to the helicopter?
A concave mirror has a radius of curvature of 34.8 cm. What is the height of the image of the insect
A 38.0 kg box initially at rest is pushed 4.00 m along a rough, horizontal floor with a constant applied horizontal force of 125 N. determine the final speed of the box
The work fuction of a particular substance is 7.81*10^-19 J. What is the photoelectric cutoff wavelength for this material
An electron initially at rest moves from one plate of a capacitor to another, through a potential di?erence of 2476 V, Find the speed with which the electron strikes the positive plate
A charge of +q is located at the origin, while an identical charge is located on the x axis at x = 0.51 m. Where should the third charge be located
A small fan has blades that have a radius of 0.0600 m. When the fan is turned on, the tips of the blades have a tangential acceleration of 19.6 m/s2as the fan comes up to speed
A cork on the surface of a pond bobs up and down two times per second on ripples having a wavelength of8.20cm. If the cork is10.5m from shore, how long does it take a ripple passing the cork to reach the shore?
A ball is thrown horizontally from the top of a 85 m building and lands 140 m from the base of the building. What is the vertical component of the velocity just before the ball hits the ground in m/s
Question on a planet similar to Earth
What quantum number of the hydrogen atom comes closest to giving a 500-nm-diameter electron orbit, What is the electron's energy in this state
An unmarked police car travelling a constant 85 km/h is passed by a speeder travelling 145km/h. Precisely 1s after the speeder passes, police officer steps on the accelerator.
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