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(a) Calculate the absolute pressure at an ocean depth of 1 000 m. Assume the density of seawater is 1 024 kg/m3 and that the air above exerts a pressure of 101.3 kPa.
(b) At this depth, what force must the frame around a circular submarine porthole having a diameter of 30.0 cm exert to counterbalance the force exerted by the water?
Find the minimum compression of the spring needed to keep the block from falling, given that the coefficient of static friction between the block and the wall is 0.50
A charge of 100 µC is at the centerof a cube of edge 65.0 cm. No othercharges are nearby. Find the flux through the whole surface of the cube
Which of the 2 having same mass and radius will reach bottom of an incline first, a solid cylinder or sphere? What equations do we use? Please show and explain all work with reason
A scientist notices that an oil slick floating on water when viewed from above has many dissimilar rainbow colors reflecting off the surface. She aims a spectrometer at a particular spot and measures the wavelength to be 750 nm (in air). The index of..
The vibration of a system in the ground state is called zero point motion, because the molecule is at zero kelvin. The tips of air plane wings(mass of order 10^4 kg) oscillate in flight (period of 1 s, amplitude of 0.1 m), could this be zero point mo..
A pion has a rest energy of 135MeV. It decays into two gamma rays, bursts of electromagnetic radiation that travel at the speed of light. find the energies of the two gamma rays
In the javelin throw at a track-and-field event, the javelin is launched at a speed of 28 m/s at anangle of 32° above the horizontal. As the javelin travels upward, its velocity points above the horizontal at an angle that decreases as time passes
at a mail sorting facility packages slide down a ramp but are stopped part way down the ramp so that they can be
in coming to a stop a car leaves skid marks 76 m long on the highway. assuming a deceleration of 6.50 ms2 estimate the
In a college homecoming competition, 16 students lift asports car. While holding the car off the ground, each studentexerts an upward force of 400 N. What is the mass of the car in kilograms
q1. as part of a safety investigation two 1300kg cars traveling at 18ms are crashed into different barriers. find the
Suppose that a plane is traveling with a horizontal velocity of vx = +238 m/s at an altitude of y = 1053 m. determine the time required for the package to hit the ground
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