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A lead sinker of mass 225 grams and density of 11.3 g/cm3 is attached to the bottom of a wooden block of mass 25 grams and density 0.5 g/cm3. Calculate the apparent weight when both are submerged in water.
A chain of movie theaters is decorated with light fixtures that when the white light passes through a transparent plate, it becomes yellow light. What color is the light reflected from the plate
An unknown material has a normal melting/freezing point of -26.3° C, and the liquid phase has a specific heat capacity of 160 J/(kg · C°). find the latent heat of fusion of the unknown material
You're an optometrist, mounting a projector at the back of your 4.2m -long exam room, 2.6 m above the floor. At what height should you center the pattern on the wall
A wave traveling in the +x direction has an amplitude of 0.186 m, a speed of 3.27 m/s, Write the equation of the wave
A weight is suspended from two ropes, one of which makes an angle #1 = 35 degrees and angle 2 = 155 degrees measured form the horizontal, Find the tension in each of the two ropes
Two small plastic spheres, one charged to -25 nC and the other to +25 nC , are connected by a 28-mm-long insulating rod. What is the maximum possible torque on the dipole
A motorcycle, which has an initial linear speed of 9.1 m/s, decelerates to a speed of 2.0 m/s in 4.5 s, calculate the angular displacement (in rad) of each wheel
Two slits of equal width are a distance 0.57 mm apart and are illuminated by coherent, mono-chromatic light. compute the widths of the slits
A man is holding an 8.00-kg vacuum cleaner at arm's length, a distance of 0.550 m from his shoulder. What is the torque on the shoulder joint if the arm is horizontal
The Burj Khalifa in Dubai is the world\'s tallest building. The structure is 828 m (2,716.5 feet) and has more than 160 stories. how high is the hotel room from the ground
An electron is a subatomic particle (m = 9.11 10-31 kg) that is subject to electric forces. Find the magnitudes of the net force acting on the electron
While standing at the edge of the roof of a building, you throw a stone upward with an initial speed of 6.97 m/s. At what speed does the stone impact the ground
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