An airplane flies with a velocity of 55.0 m/s [35o N of W] with respect to the air (this is known as air speed). If the velocity of the airplane according to an observer on the ground is 40.0 m/s [53o N of W], what was the wind velocity?

Mr. Franklin uses a machine that has an efficiency of 80%. The machine applies a force of 800 N through a distance of 20 m. Mr. Franklin applies a force of 50 N on the machine. Through what distance does Mr. Franklin apply the force? a. 4 m b.

Should your directions to a friend for traveling from one city to another include displacements or distances? Explain

Listed following is a set of statements describing individual stars or characteristics of stars. Match these to the appropriate object category. A) red giant or supergiantB) main sequence starsC) white dwarfs1. The majority of stars in our galaxy2.

A 77.0 kg firefighter climbs a flight of stairs 8.0 m high. how much work is required? 0 incorrect: your answer is incorrect. j

What is the term for the pattern of spiral impressions inside a handgun? A) rifling B) ejector markings C) lands and grooves D) extractor markings

Religion, astrology, and handwriting analysis are all believed in and used by many people. How are they different from psychology?

A ball is thrown straight down a at 10.0 m/s from a 32.4 m-high building. How long does it take to reach the ground? What is the speed the moment before it hits the ground?

Based on the video, which venus phase would be impossible to see (from earth) of venus orbited earth as described in ptolemy's earth-centered model

Darrel noticed that his finger felt warmer in the ice water then did his left finger which of the following does the experiment show

Why is coal costly to produce? 1. coal is found deep underground. 2. Coal is expensive to make 3. Coal is only found in certain places on earth. 4. Coal is difficult to make in the lab.