A coconut fell from a tree. it fell a distance of 38m. how long was the coconut falling?

Which of the following characteristics of stars is affected by a stars temperature? 1. Brightness 2. Color 3. Distance from Earth 4. Size

During which strokes does the piston move downward in a four-stroke internal combustion engine? intake and exhaust compression and exhaust power and intake compression and power

Forecast error is found by subtracting the forecast from the actual demand for a given period. True or False

Which of the following is a form of kinetic energy? O A. Sound energy O B. Electrical energy O C. Nuclear energy O D. Potential energy

How are the energy of infrared, visible light and ultraviolet rays related? And why? A) Infrared contains the least energy and ultraviolet contains the most energy. The energy of a wave is proportional to its wavelength.

Which of the following is a vector quantity? A. 83 ounces of liquid B. 55 km/hr in a truck C. 15 seconds of travel D. 10 m/s down

Which of the following best describes the ultraviolet catastrophe of blackbody radiation? A. As energy is added to an object acting as a blackbody radiator, its emissions move to the ultraviolet part of the electromagnetic spectrum. B.

Is an engine-activated booster unit that reduces the effort required to apply the hydraulic brakes

A box is lowered using a rope. If the acceleration of the box, is 2.5 m/s2 (downward) and the tension in the rope is 31 N, what is the mass of the box (in kg) ?

On a very hot summer day, the rooms on the first floor of a house stay cooler than the rooms on the second. Which form of thermal energy flow causes this to occur? A) Conduction B) Convection C) Kinetic D) Radiation