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Upon being struck by 240 nm photons, a material ejects electrons with a maximum kinetic energy of 1.44 eV. Estimate the work function of this material?
A child on a boat throws a 5.40 kg package out horizontally with a speed of 12.0 m/s. determine the velocity of the boat immediately after, assuming it was initially at rest. The mass of the child is 26.5 kg and the mass of boat is 55.5 kg.
A diverging lens with f = -25.5cm is placed 16.5cm behind a converging lens with f = 22.0cm. Where will an object at infinity be focused
A thin flat plate is installed in a water tunnel as a splitter. The plate is 0.3 m long and 1 m wide. The free stream speed is 1.60 m/s. laminar boundary layers form on both sides of the plate. The boundary-layer velocity profile is approximated as p..
a 1800kg car is traveling along a straight road at 20ms . two seconds later its speed is 24ms . what is the magnitude
The graph shows how the force component F cos along the displacement varies with the magnitude s of the displacement. Find the work done by theforce. (Hint: Recall how the area of a triangle is related tothe triangle's base and height.)
establish linear speed of the dragster.
A system performs 352 J of work on its surroundings while losing 133 J of internal energy. Determine the heat transferred to the system during this process
A freezer is used to freeze 2.0 L of water completely into ice. The water andthe freezer remain at a constant temperature of T =0°C. Determine the change in the entropy of the freezer
two shortwave radio antennas broadcast identical in-phase signals at the same frequency. the transmitters are 176.0 m
A speed skater moving across frictionless ice at 8.6 hits a 5.5 -wide patch of rough ice. She slows steadily, then continues on at 6.3 . What is her acceleration on the rough ice
At three corners of a rectangle (length = 4d, height = d), the following charges are located: +q1 (upper left corner), +q2 (lower right corner), and q (lower left corner). Evaluate the magnitudes of q1 and q2 charges
A 2.85 kg object is held in place on an inclined plane that makes an angle of 40 degrees with the horizontal. Calculate the initial acceleration of the system
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