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A submarine dives to a depth of 310 feet in the ocean.
a) What is the gauge pressure (in SI units!) at this depth? How many atmospheres is this?
b) What is the force acting on a hatch that has an area of 4.5 square meters?
An aluminum block (c=0.22 kcal/kgoC) of mass 1 kg and temperature 964oC is dropped into 11 liters of water at 26 oC. What is the final temperature of the water and aluminum
Two charges q1 = ?3.20 nC and q2 = +8.90 nC are at a distance of 1.20 µm from each other, What is the kinetic energy of the charge q2 when it is 0.340 µm from q1
Astronaut Ann wishes to travel from one side of her spaceship to the other side so she pushes herself away from a wall, What is Ann's speed relative to Bob as she drifts across the spacehip
A tight uniform string with a length of 1.80 m is tied down at both ends and placed under a tension of 100 N. What is the mass of the string
A meteoroid is speeding through the atmosphere, traveling east at 21.5 km/s while descending at 19.0 km/s. What is its speed, in km/s.
A Young's double-slit experiment is performed using light that has a wavelength of 623 nm. Calculate the angle that locates the first-order bright fringes
A woman can read the large print in a newspaper only when it is at a distance of 65 cm or more from her eyes. What should be the refractive power (in diopters) of her glasses
A wire has a diameter of 1.74 mm and a length of 37 m, What is the resistivity of the wire?
The space shuttle is in a 300km -high circular orbit. It needs to reach a 610km -high circular orbit to catch the Hubble Space Telescope for repairs, How much energy is required to boost it to the new orbit
A straight wire in a magnetic field experiences a force of 0.030 N when the current in the wire is 2.7 A. What is the new current
A 3.90-kg object is attached to a spring and placed on frictionless, horizontal surface. Find the total energy of the oscillating system
In coming to a stop, a car leaves skid marks 91m long on the highway. Assume a deceleration of 7.5m/s2, compute approximately the speed of the car just before braking.
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