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A 3 kg flowerpot drops from a tall building. The initial speed of the pot is zero, and you may neglect air resistance.
a) What is the magnitude of the force acting on the pot while it is in the air 1.5 s after it begins to fall?
b) After the pot has fallen 26 m, what is its speed?
c) After the pot has fallen 26 m, it enters a viscous liquid, which brings it to rest over a distance of 1.5 m. Assuming constant deceleration over this distance, what is the magnitude of this deceleration?
d) What is the force exerted on the liquid by the pot?
A woman holds a tube of lipstick 5.7 cm from a spherical mirror and notices that the image of the tube is upright and one eighth its normal size. Determine the position of the image. Is it in front of or behind the mirror
when it falls back it hits the ground with speed v1=50m/s. The mass of the ball is m=20g. Illustrate what is the total work done by the drag force while the ball is in the air?
You have a ball on a wire that is twirled in a circular orbit with a radius of 3.8 m, and the centripetal force acting on the ball, What is the speed of the ball in orbit
In a Young's double slit experiment the 10th order dark fringe is located 0.025 m to the side of the central bright fringe on a flat screen. How far away is the screen from the double slit
The drawing shows a rectangular block of glass (n = 1.52) surrounded by liquid carbon disulfide (n = 1.63). At what angle of refraction does the ray leave the glass at point B
A 1.00 cm object is 60.0 cm in front of a diverging lens that has a -30.0 cm focal length. Find the image position and height. Is the image real or virtual? Is the image upright or inverted
You are at a rock concert and find that when you stand 15 m from a speaker, the intensity is so high that it hurts your ears. how far from the speaker should you stand
A camera requires 5.2J of energy for a flash lasting 1.0 ms. What power does the flashtube use while it%u2019s flashing
A 500 nm wavelength light illuminates a soap film with an index of refraction 1.22 to make it look bright. what is the minimum thickness of the film
A nuclear power plant generates waste thermal energy at a rate of 1000 MW = 1000 × 106 W. Assume the heat of vaporization of a water is 2.256× 106 J/kg. How much water must evaporate to cool the plant per day
To protect their young in the nest, peregrine falcons will fly into birds of prey (such as ravens) at high speed. What was the raven's speed right after the collision
To increase the resolving power of a microscope, the object and the objective are immersed in oil (n = 1.54), what is the limiting angle of resolution with the oil
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