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1. A large tank of water is full and has a depth of 10.0 m. What is the pressure at the bottom of the tank? What would the velocity of the water be if the tank was opened at the bottom?
2. A Two balloons of identical volume (radius 11.5 m) are filled with gas. The first with helium and the second with hydrogen (H2) gas. Each balloon and cage has a mass of 750 kg. What is the lift created by each one? Which one lifts better?
3. A irregular piece of metal has a dry mass of 5.7 kg. Once it is submerged it has an apparent mass of 2.4 kg. What is the density of the piece of metal?
4. If water leaves a tank of water at a velocity of 16.7 m/s, how tall is the tank?
An alpha particle (q = +3.20×10?19 C) moves at a velocity of 2.45×104 m/s in the positive x direction through a magnetic field of 0.0735 T that points in the negative z direction
A charged particle with an initial horizontal velocity of 2 km/s enters a region of uniform electric and magnetic fields. Obtain the magnitude and give the direction of the electric field
A rubber ball of mass m falls straight down and bounces off the floor with equal incoming and outgoing speeds v. What is the magnitude of the impulse on the ball
A man pulls a toboggan for a distance of 40.0 meter along the snow with a rope directed 20.0 degree above the snow. Find how much work is done if the same tension is directed parallel to the snow
A force of magnitude 610.0 N stretches a certain spring by 0.230 N from its equilibrium position. How much elastic potential energy is stored in the spring when it is stretched 0.300 m from its equilibrium position
A source emits sound uniformly in all directions. There are no reflections of the sound. find the total sound power P emitted by the source
The question below was asked before, but this seems to ignore that the launching machine should have static friction as well, How far would the launching machine slide on the Moon
Point charges of -8.20 micro Coulombs are placed at each corner of a square that is 0.250m on a side. Find the electric potential at the center of a square
find the minimum thickness for constructive interference of visible light with a wavelength of 595 nm.
A solid ball of mass .30kg and radius .053m is rolling without slipping along a horizontal surface with a linear speed of 2.3m/s. obtain is its total Kinetic energy
A 66 cm long, 0.8 mm diameter steel guitar string must be tightened to a tension of 2100 N by turning the tuning screws. By how much is the string stretched
Four identical metallic spheres with charges of +2.2 µC, +6.2 µC, ?6.6 µC, and ?3.6 µC are placed on a piece of paper. What is the resulting charge on each sphere
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