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A rocket skateboard of mass 3 kilogram has an initial velocity of (5.00, 2.50) m/s. A net force of (3.40, 2.67) Newton is applied to it for 10 second. At the end of this time, evaluate what is its velocity?
A good baseball pitcher can throw a baseball toward home plate at 91 miles per hour with a spin of 1789 revolutions per minute. How many revolutions does baseball make on its way to home plate? For simplicity, assume that the 60.0 ft path is a straig..
A train moving at a constant speed of 63.0 km/h moves east for 33.0 min, then in a direction 41.0° east of due north for 24.0 min, and then west for 44.0 min. What is the average velocity of the train during this run? Magnitude 1 km/h Direction 2° (c..
Calculate the rotational inertia of a meter stick, with mass 0.83 kg, about an axis perpendicular to the stick and located at the 44 cm mark
A camera lens used for taking close-up photographs has a focal length of 23.5 mm. The farthest it can be placed from the film is 33.5 mm. What is the closest object that can be photographed
A ball on the end of a string is revolved at a uniform rate in a vertical circle of radius 72.0 centimeter. find the tension in the string when the ball is at the top of its path
A 3.0 kg mass is attached to a vertical spring hanging from the ceiling. The spring and mass are stationary. The spring constant for the spring is 250 N/m. What is the gravitational potential energy of the system
Determine the period of a satellite orbiting the Moon, 190 kilometer above the Moon's surface. Ignore effects of the Earth. The radius of the Moon is 1740 kilometer
A puck slides across a smooth, level tabletop at height H at a constant speed vo. It slides off the edge of the table and hits the floor a distance x away as shown in the figure. What is the algebraic relationship between the distances x and H?
a popular entertainment at some carnivals is the blanket toss.a if a person is thrown to a maximum height of 28.0ft
How much power does an automotive battery contain that can furnish 750 Amperes at 12.7 volts for a short period of time
The projectile remains in flight for 6 seconds and travels a horizontal distance D of 155m. Calculate the speed at which the rock was launched
a positive point charge q 3.7times10-5 c is fixed at the origin of coordinates and a negative charge q -4.1times10-6
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