4. How does light travel?

Calculate the average speed of an automobile that travels 60km east and then 80km north in two hours

2. A body is thrown vertically upward with a speed of 100 m/s. The time taken to be the earth is a. 10 sec b. 20 sec c. 15 sec d. 5 sec

Two parallel plates, each having area A = 3557 cm2 are connected to the terminals of a battery of voltage Vb = 6 V as shown. The plates are separated by a distance d = 0.59 cm.

Which of the following statement (s) is true about clipper circuits Select one: O a. It converts a. c to d. c always O b. The output is clipped of some portion of input signal O c. It converts d. c to a. c O d. None of these

Four objects are situated along the y axis as follows: a 1.93-kg object is at + 2.93 m, a 3.06-kg object is at + 2.58 m, a 2.41-kg object is at the origin, and a 3.96-kg object is at - 0.498 m. Where is the center of mass of these objects?

In a chemical reaction, one element replaces another element in a compound to form a new substance. Which of the following best describes this type of chemical reaction? Combustion Neutralization Double Replacement Single Replacement

If the Earth's crust contained twice as much iron as it does, would atmospheric oxygen buildup have been slowed down or sped up during the past 2.

Which of the following statements is true? A. Energy can change from one form to another. B. Matter and energy do not interact. C. Energy cannot be stored. D. Energy does not transfer from place to place.

Work is done when a force A. is exerted while pulling a wagon up a hill B. acts vertically on a cart that can only move horizontally C. is exerted by one team in a tug of war when there is no movement D.

From whom should a departing VFR aircraft request radar traffic information during ground operations?