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It is initially held fully submerged in fresh water, with its top face at the water surface. Then it is allowed to ascend gradually until it begins to float. How much work does the buoyant force do
A projectile is fired at v0=342.0m/s at an angle of theta=72.3degrees with respect to the horizontal. Assume that air friction will shorten the range bye 35.1%. How far will the projectile travel in
A dog in an open field runs 10.0m east and then 26.0m in a direction 52.0 degree west of north. In what direction must the dog then run to end up 12.0m south of her original starting point? How far
John, Paul, and George are standing in a strawberry field. Paul is 10.0m due west of John. George is 35.0m from Paul, in a direction 40.0 degree south of east from Paul's location How far is George
After a fourth unmeasured displacement, she finds herself back where she started Use a scale drawing to determine the magnitude of the fourth displacement. Determine the direction of the fourth disp
If the hoop is 3.05 m above the ground with what speed must he launch the ball for it to go through the center of the hoop?
Consider a spherical Gaussian surface and three charges:q1 = 1.59uC ,q2 = -2.46uC , and q3 = 3.58uC . Find the electric flux through the Gaussian surface if it completely encloses (a) only charges q
From the time the crate leaves the helicopter to the time it hits the ground, 3.5 seconds pass. Calculate A. Which Physics principle laws or definitions did you use?
A U-shaped tube open to the air at both ends contains some mercury. A quantity of water is carefully poured into the left arm of the U-shaped tube until the vertical height of the water column is 1
A solid aluminum ingot weighs 71.0 N in air. A. What is its volume? B. The ingot is suspended from a rope and totally immersed in water. What is the tension in the rope (the apparent weight of the
Consider a point P on the viewing screen of a double-slit interference experiment. This point is 45% of the way from the center of the 2nd bright fringe to the center of the 3rd bright fringe. If th
Calculate the maximum allowable voltage without shock across the thumb and the index finger with a dry-skin resistance of 5.99×105
The drawing shows two situations in which charges are placed on the x and y axes. They are all located at the same distance of 5.6 cm from the origin O. For each of the situations in the drawing, de
Two electrically charged objects are placed at 6 cm away from each other. Each object has an electrical charge of +1 uC and a mass of 1 milligram. If one object is fixed in place, how far does the
Calculate the magnitude of charge stored on each plate in this case. (Use 80.0 for the dielectric constant of water.)
A 10.5 uF capacitor is fully charged across a 18.0 V battery. The capacitor is then disconnected from the battery and connected across an initially uncharged capacitor, C. The resulting voltage acr
The charges on the objects have equal magnitudes. Because of these charges, the spring stretches by 0.033 m relative to its unstrained length. Determine (a) the possible algebraic signs and (b) the
In the rectangle in the drawing, a charge is to be placed at the empty corner to make the net force on the charge at corner A point along the vertical direction. What charge (magnitude and algebrai
A water jet is ejected from the nozzle of a fountain with speed Vo = 12 m/s. Letting Beta = 33 (degrees), determine the rate of change of the speed of the water particles as soon as these are eject
In the electron gun pictured, a potential difference of 12.0 kV is found to bring electrons from rest at the cathode to 6.5 107 m/s at the anode. If the potential difference between the cathode and
An air-track glider is attached to a spring. The glider is pulled to the right and released from rest at t=0 {\rm s}. It then oscillates with a period of 1.50s and a maximum speed of 42.0cm/s . Wha
Photons of wavelength 65.0 pm are Compton-Scattered from a free electron which picks up a kinetic energy of 0.73 keV from collision. What is wavelength of the scattered photon? I cannot find a form
A 4.50kg block hangs from a spring with spring constant 2080N/m. The block is pulled down 5.70cm from the equilibrium position and given an initial velocity of 1.50m/s back toward equilibrium. frequ
If the snowball just passes over he head of child B and hits child C, determine the radius of trajectory described by the snowball at (a) point B, (b) point C.