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You are given the task to determine the volume of an irregular shaped object. You hang it on a scale and measure its weight to be 27 N. When you submerge it in a bath of water, the scale reading changes to 12 N. What is the object's volume? (provide your answer in cm^3)
A spotlight is coated so that it won't transmit magenta light from its white-hot filament. What colour emerges from coated spotlight.
Find the surface tension force on water inside a tube and height to which the water rises in the tube.
You then kick the ball with the same initial velocity and at the same angle to the horizontal. This time, however, you kick it up a 15 degree slope. What is the horizontal range of the ball's travel
A man with a mass of 59 kg stands up in a 73-kg canoe of length 4.0 m floating on water. How far does the canoe move
The allowed energies of a simple atom are 0.0 eV, 4.0 eV, and 6.0 eV. What wavelengths appear in the atom's absorption spectrum
Two charged particles with different speeds move one at a time through a region of uniform magnetic field. Find the ratio of the speeds
The cord is then pulled from below, shortening the radius of the circle in which the block revolves to 0.10 . At this new distance, the speed of the block is observed to be 3.50. Explain by how much work was done by the person who pulled on the cor..
A solid sphere of mass 4.0kg and radius of 0.12m is at rest at the top of a ramp inclined 15degrees. It rolls to the bottom without slipping. What is the liner speed of the sphere
A shot fired with a velocity 100 m/s on a direction making an angle 60 degree with vertical. Calculate the time of flight
A bird stands on a dc electric transmission line carrying 3300A (Figure 1) . The line has 2.7×10?5? resistance per meter, and the bird's feet are 3.5cm apart
q1. a spaceship travels with a constant speed of 0.3c as it passes by the earth on its way to a distant star.a. the
An He+ ion has one electron , just as a hydrogen atom does , but has two protons in its nucleus instead of just one .Find a formula for the wavelength lambda of an emission line for this ion in terms of the magnitude of the hydrogen ground-state ene..
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