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The Olympic Flame at the 1992 Barcelona Olympics was lit by a flaming arrow shot from a point 60 meter horizontally and 24 meter vertically from the flame. Find the initial speed necessary for the arrow to reach the flame at the peak of its trajectory. Ignore air resistance.
Compute the angular momentum of the earth arising from the following motions Earth's orbital motion around the sun
Two identical clocks are synchronized. One is then put in orbitdirected eastward around the Earth while the other remains on the Earth. Which clock runs slower? When the moving clock returns tothe Earth, are the two still synchronized?
What is the instantaneous power, at a time of 0.00700 seconds, dissipated by a 200 ohm resistor in a resonant AC circuit powered by a generator with a 21.0 V highest potential difference operating at 5000 rad/s .
A heat pump has a coefficient of performance of 3.90, How much energy does it deliver into a home during 12 h of continuous operation
A 4.8mH toroidal inductor has 140 identical equally spaced coils. If it carries an 11.5 A current, how much magnetic flux passes through each of its coils
An undersea research chamber for aquanauts is spherical with an external diameter of 4.7 m. calculate the buoyant force on the chamber
a spherical capacitor is formed from two concentric spherical conducting shells separated by vacuum. the inner sphere
A 0.15 kg meter stick is balanced with the pivot point at the 18 cm mark. A weight of 3.2N is hung from the shorter end. Where should the weight be positioned in order to balance the meter stick?
The focal length of the eyepiece of a certain microscope is 18.5 mm . The focal length of the objective is 7.85 mm. What is the distance from the objective to the object being viewed
When you take a bath, how many kilograms of hot water (36.4°C) must you mix with cold water (14.4 °C) so that thetemperature of the bath is 32.8 °C? The total mass of water(hot plus cold) is 183 kg.
A little boy drops a rock off a bridge which is 58.6 meters above the river below. What is the CHANGE in speed of the falling rock between the times t=1.28 seconds and t=2.73 seconds after the boy drops the rock
a 7.0-kg block is at rest on a horizontal floor. if you push horizontally on the 7.0-kg block with a force of 21.0 n it
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