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In the Challenger Deep of the Marianas Trench, the depth of seawater is 10.9 km and the pressure is 1.16 x 10^8Pa (about 1.15 x 10^3 atm).
A) If a cubic meter of water is taken from the surface to this depth, what is the change in its volume? (Normal atmospheric pressure is about 1.0 x 10^5 Pa . Assume that k for seawater is 45.8 x 10^-11Pa^-1
B) What is the density of seawater at this depth? (At the surface, seawater has a density of 1.03 x 10^3 kg/m^{3}.)
Two physical pendulums ( not simple pendulum) are made from sticks that are suspended from the ceiling at one end. The sticks are uniform and are identical in all respects, except one is made of wood (mass = 0.17 kg )and the other of metal (mass =..
In an integrated circuit, the current density in a 3.0??m?thick× 80 ??m?wide gold film is 7.9×105A/m2. How much charge flows through the film in 15 min
On a cool morning, when the temperature is 16 deg Celsius, you measure the pressure in your car tires to be 20.0 psi. After driving 40 mi on the freeway, temperature of your tires is 56.0 deg Celsius. What pressure will your tire gauge now show.
show that the horizontal distance that the aircraft engine falls is 8400 m. If the airplane somehow continues to fly as if nothing had happened. where is the engine relative to the airplane at the moment the engine hits the ground?
A block of mass 5 kg hangs on a spring. When a second block with an identical mass of 5 kg is tied to the first, the spring stretches an additional ho = 1.5 m. What is the maximum speed attained by the remaining block
Anemometers (pictured) are used to measure wind speeds. Wind striking the cups causes the assembly to rotate; a gauge measures the frequency of this rotation and translates the data into wind speed. calculate the number of turns in the coil wire
A parallel-plate capacitor in air has a plate separation of 1.42 cm and a plate area of 25.0 cm2. What is the change in energy of the capacitor
A rocket blasts off from a platform on a space station. An identical rocket blast off from free space. Considering that everything else is equal, will the two rockets have the same acceleration? define.
Suppose that the sound level of a conversation is initially at an angry 72 dB and then drops to a soothing 50 dB. determine the initial and final sound intensities
A shell of mass m and speed v explodes into two identical fragments. If the shell was moving horizontally (the positive x direction) with respect to Earth, and one of the fragments is subsequently moving vertically with speed v, find out the velocity..
A 7.55-g bullet from a 9-mm pistol has a velocity of 389.0 m/s. It strikes the 0.745-kg block of a ballistic pendulum, what was the velocity of the bullet as it emerged from the block
An ostrich lays the largest bird egg. A typical diameter for an ostrich egg at its widest part is 12 cm. What is the tangential speed of that part of the shell
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