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An undersea research chamber is spherical with an external diameter of 4.60m . The mass of the chamber, when occupied, is 51100kg . It is anchored to the sea bottom by a cable.
What is the buoyant force on the chamber?
What is the tension in the cable?
How does this number of calories compare with the number of calories required to vary the same gram of 100 degree C boiling water to 100 degree C steam.
A 69-kg construction worker stands at the far end of the beam. What is the magnitude of the torque about the point where the beam is bolted in place.
A 30-meter steel tape is correct at a temperature of 20.0(C). The distance between two points, as measured by this tape on a day when the temperature is 5 (C), is 25.970m. What is the true distance between the points?
The equations of force and motion objective questions.
A bullet is fired vertically into a 1.3kg block of wood at rest directly above it. If the bullet has a mass of 29g and a speed of 470m/s, how high will the block rise after bullet becomes embedded in it.
A uniform circular ring of charge Q= 7.30 microCoulombs and radius R= 1.10 cm is located in the x-y plane, centered on the origin. What is the magnitude of electric field E at point P, located at z= 2.80 cm.
Two identical positive charges exert a repulsive force of 6.2 multiplied by 10-9 N when separated by a distance of 3.4 multiplied by 10-10 m. Calculate the charge of each.
A broken piano emits frequencies from a low of 32.0 Hz to a high of about 4100 Hz. What is the shortest wavelength if the speed of sound in air is 342.50 m/s? Record the answer to three decimal places and include units in the answer.
The battery of a pocket calculator has a voltage of 4.0 V and devilers a current of 0.29 mA. In one hour of operation How much charge flows in the circuit
An empty sled of mass 25kg slides down a muddy hill with the constant of 2.40m/s. The slope of the hill is inclined at the angle of 15 degrees with the horizontal.
A speeder is pulling directly away and increasing his distance from a police car that is moving at 23.0 m/s with respect to the ground. Calculate the speeder's speed with respect to the ground.
Skier loses a ski at the top of a 98 m hill. The ski proceeds to glide down the hill frictionless. Illustrate what speed is the ski traveling at the bottom of the hill?
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