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A: What would be the length of one day if the Earth spun so fast that bodies floated at the equator? Radius of the Earth being about 6380 km?
B: If the radius of Earth were to shrink by 1.0%, its mass remaining the same, would the acceleration due to gravity g on the Earth's surface increase or decrease (why), and by what percentage?
C: There are two solid steel spheres. Sphere 1 has one third of the radius of sphere 2. By what factor does the moment of inertia I_2 of sphere 2 exceed the moment of inertia I_1 of sphere 1?
A 9.0 ohm resistor and a 6.0 ohm resistor are connected in series with a power supply. Find the voltage setting of the power supply
A diver has a vertical velocity of -12 m/s when she is 1.8 m above the water. What was her peak height
Consider a particle of mass that is revolving with angular speed around an axis. The perpendicular distance from the particle to the axis is . Part A Find the kinetic energy K of the rotating particle. Express your answer in terms of m, r, and omega.
The emperical formula of an organic compound was found to be C3H7. find the molecular weight and molecular formula of the compound
question1a 48-kg pole vaulter running at 14 ms vaults over the bar. her speed as she is above the bar is 1.3 ms. ignore
What is the net force acting on a 5-kg objest falling on earth, what is the mass of object on moon
Some bacteria are propelled by biological motors that spin hair-like flagella. What is the angular speed (the magnitude of the angular velocity) of this bacterial motor
A wheel with radius 43.9 cm rotates 4.27 times every second. Find the period of this motion.
A star lying 35pc from the Sun has proper motion of 0.2"/yr. calculate the magnitude of its three-dimensional velocity relative to the Sun
Testing Tennis Balls Tennis balls are tested by being dropped from a height of 2.5m onto a concrete floor. The 57g ball hits the ground, compresses, How fast is the ball moving just before it hits the floor
a 5-microf capacitor is charged to 30 v and is then connected across a 10-microh inductor. the maximum value of the
Two negative, equally charged drops of water, 0.80 mm apart, exert an electrostatic force of 78.5 x 10-9 N on each other. Determine the net charge on each drop. Give your answer in the form "a.bc" pico-Coulombs.
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