The ratio of output power to input power, in percent, is called

What are the chemical properties of aspirin?

Canoeing a person in a canoe wants to cross a 65-foot-wide river. he begins to paddle straight across the river at 1.2 m/s while a current is flowing perpendicular to the canoe. if the resulting velocity of the canoe is 3.

Pablo wants to enter the science fair. Which question could be answered through scientific investigation? A. Which sport is the most fun to watch? B. Who is the greatest pitcher of the last one hundred years? C.

The table below shows the difference between the average temperatures in April and October in four locations. Location/Difference between the average temperatures in April and October (in degrees Celsius) A / 4.5 B / 1.7 C / 6.8 D / 4.

Water flows over a section of Niagara Falls at a rate of 1.2 * 106 kg/s and falls 29 m. The acceleration of gravity is 9.8 m/s 2. How many 80 W bulbs can be lit with this power?

What is the dimension of n if force is given by the equation F=6pie rvn

A slanted vector has a magnitude of 41 N and is at an angle of 23 degrees north of east. What are the magnitude and direction of the horizontal and vertical components of this vector?

A wheel with rotational inertia 0.04 kg•m2 and radius 0.02 m is turning at the rate of 10 revolutions per second when a frictional torque is applied to stop it. How much work is done by the torque in stopping the wheel?

The process in which light travels through an object is called

What is the magnitude of the vector described below? "15 ft/s down" A. 15 ft/s B. Feet C. Feet per second D. Down