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Compute the angular momentum of the earth arising from the following motions.
(a) Earth's orbital motion around the sun.
(b) Earth's rotation on its axis.
At one instant a bicyclist is 49m due east of a park's flagpole, going due south with a speed of 14 m/s. Then 40s later, the cyclist is 49m due north of the flagpole, going due east with a speed of 14m/s. For the cyclist in this 40s interval, what..
A thin uniform 15 kg post, 1.75 m long is held vertically using a cable and is attached to a 5kg mass and a pivot at its bottom end. Find the angular acceleration of the post about the pivot just after the cable breaks
A water molecule can vibrate in various ways, but the easiest kind of vibration to excite is the "flexing" mode in which the hydrogen atoms move toward and away from each other by HO bonds do not stretch.
A 563 Hz sound wave travels through a substance. The wavelength of the sound wave is measured to be 2.9 meters
A ball is thrown 20.0 m/s at an angle of 40.0º with the horizontal. Assume the ball is thrown at ground level. How long does it take the ball to reach the wall
One mole of oxygen molecules occupies a cubic vessel of side length 10 cm at a temperature of 18 C. Calculate the pressure of the gas on the walls
A transformer has 330 primary turns and 1340 secondary turns. The input voltage is 120 V the output current is 15 A. What are the output voltage and input current
A rotating door is made from four rectangular sections, as indicated in the drawing. The mass of each section is 80 kg. A person pushes on the outer edge of one section with a force of F = 75 N that is directed perpendicular to the section. Find out ..
A person eats a dessert that contains 280 Calories. (This "Calorie" unit, with a capital C, is the one used by nutritionists; 1 Calorie = 4186 J.
suppose the original experiment is done on the Moon, where g, the acceleration due to gravity, how will the graph compare to the original graph
q1. an artillery shell is fired with an initial velocity of 303 ms at 46deg above the horizontal. to clear an avalanche
A thin, light wire is wrapped around the rim of a wheel, If the suspended object moves downward a distance of 3.40m in 1.86s, what is the mass of the wheel
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