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A drop of water on a countertop reflects light from a flower held 3.10 cm directly above it. The flower's diameter is 1.70 cm, and the diameter of the flower's image is 0.13 cm. What is the focal length of the water drop, assuming that it may be treated as a convex spherical mirror?
a) What is the ratio of the momentum of the SUV to that of the car? b) What is the ratio of the kinetic energy of the SUV to that of the car?
The electric field 0.465m from a very long uniform line of charge is 800N/C. How much charge is contained in a section of the line of length 2.90 cm
An air-track cart is attached to a spring and completes oneoscillation every 5.67 s. What is the position of the cart when t =29.6 s
A mass M = 25.0 kg is suspended by a massless string from the ceiling of a van which is moving with constant acceleration a, what is the acceleration a of the van
A garage lift has input and lift(output)pistons with diameters of 10cm and 30cm respectively. Find the force which must be exerted on the input piston to hold this weight
A candle of height 2.0 cm is placed 10.0 cm in front of a diverging (concave) lens of focal length -6.0 cm. Where is the image of the candle
A box of textbooks of mass 25.9kg rests on a loading ramp that makes an angle \alpha with the horizontal. find the minimum angle at which the box starts to slip
A 120 cm3 box contains helium at a pressure of 2.20 atm and a temperature of 80.0 °C. It is placed in thermal contact with a 180 cm3 box containing argon at a pressure of 4.50 atm and a temperature of 420 °C.Part A) What is the initial thermal energy..
a piece of cheese with a mass of 1.21 kg is placed on a vertical spring of negligible mass and a force constant k 2200
Estimate the total pathlength traveled by a deuteron in the syslotron of sample problem28-5 during the entire acceleration process. assume that the accelerating potential between the dees is 80kV
Give the basic physics reason of at least three errors in each of the two bond diagrams of shallow acceptor and donor in semiconductors shown below.
The work done by an engine equals one-half the energy it expels to a cooler at 0C. what is the temperature of the heater
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