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A beaker with a capacity of exactly 100mL contains 99.7mL of ethanol at 26degrees C. Part A If its temperature rises, at what temperature will it overflow? (Ignore expansion of the beaker itself.)
When light of wavelength 303 nm falls on a potassium surface, electrons are emitted that have a maximum kinetic energy of 1.99 eV. What is the work function of potassium? The speed of light is 3 × 10^8 m/s and Planck’s constant is 6.63 × 10^?34 J · s..
Find distances between the lens and the film
A bicyclist rides 3.19 km due east, while the resistive force from the air has a magnitude of 8.83 N and points due west. Find the work done by the resistive force during the round trip
Certain insects, such as the water bug, are sufficiently lightweight that they can run on top of water without breaking the surface tension. What is the weight of bug B
Andy (mass 77kg ) uses a 2.7m -long rope to pull Bob (mass 61kg ) across the floor (μk=0.20) at a constant speed of 1.0m/s. What is the mass of the rope
A waterpipe of radius 0.02 m delivers water at a flow rate of 0.01m^3/ s^1 at 20 degrees C. What is the average velocity of the water
A hardworking ant must supply 0.0500 N to pull a small piece of fruit at constant velocity over a distance of 8.00 cm up a small hill to the entrance of the colony. calculate the mass of the piece of fruit in grams
An automobile has a mass of 1500 kg, and its aluminum brakes have an overall mass of 6.00 kg. (a) Assume all the mechanical energy that transforms into internal energy when the car stops is deposited in the brakes and no energy is transferred out of ..
q1. an 825-n sled is pulled a distance of 161 m. the task requires 1.50 104 j of work and is done by pulling on a rope
Find out the magnitude of that push.
A 23 kg child goes down a straight slide inclined 38 above horizontal. How large is the normal force of the slide on the child
Calculate the rates of solar heating
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