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Atlas and hercules, two carnival sideshow strong men, each lift200kg barbells 2.00m off the ground. Atlas lifts his barbells in1.00s and Hercules lifts his in 3.00s.
a.) Which strong man doesmore work?
b.) Calculate which man is more powerful.
At what height above the earth is the free-fall acceleration 20% of its value at the surface. What is the speed of a satellite orbiting at that height
question1a molecule of dna deoxyribonucleic acid is 2.35 microm long. the ends of the molecule become singly ionized --
The left ventricle of the heart accelerates blood from rest to avelocity of +24cm/s. If the displacement of the blood during theacceleration is +1.6 cm, determine its acceleration (incm/s2). How much time does blood take to reach its final velocity?
A 5.0-kg mass starts from rest and accelerates to a velocity of 8.0 m/s in a time of 10.0 seconds. Calculate the force that is acting on the mass
Students in a fraternity house want to be able to spray water 25 m across their neighbor's yard onto a patio. What size nozzle do they need
Three forces acting on an object are given by 1 = (?2.45 + 5.60) N, 2 = (5.30 ? 1.3) N, and 3 = (?42.5) N. What is the direction of the acceleration
A 11-V battery is connected to three capacitors in series. The capacitors have the following capacitances: 3.6 µF, 11.1 µF, and 32.5 µF. Find the voltage across the 32.5-µF capacitor
A 0.420 kg ice puck, moving east with a speed of 3.12 m/s, has a head-on collision with a 0.890 kg puck initially at rest. Assuming a perfectly elastic collision, What is the speed of the heavier puck
An 0.82 kg bucket full of water is being swung by a rope in a vertical circle of diameter 2.31 m. Compute the least speed a bucket must be moving so that the water doesn't fall out.
On days of fair weather, the atmospheric electric field of the Earth is about 116 N/C; What is the surface charge density on the ground
A daring ranch hand sitting on a tree limb wishes to drop vertically onto a horse galloping under the tree. How long is he in the air
In a certain RLC circuit, the RMS current is 6.42 A, the RMS voltage is 235 V, and the current leads the voltage by 55.6°. Calculate the average power dissipated in the circuit
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