A car is driven 1 200 m north at 20.0 m/s and then driven 1 600 m east at 25.0 m/s. What is the magnitude of the average velocity for this trip?
a. 16.1 m/s
b. 22.6 m/s
c. 31.3 m/s
d. 11.3 m/s
e. 62.2 m/s
A
You might also like to view...
The surface of Venus is hotter than the surface of Mercury
a. True b. False Indicate whether the statement is true or false
How were the heavier elements that we have on earth produced?
a) They have always been here so they were never produced b) all elements were produced in the Big Bang c) all the heavy elements on earth were produced by our Sun at the center of our solar system and some elements are also produced by plants d)By nuclear fusion and nuclear synthesis processes in stars that predated our Sun and nuclear processes that occur when the stars undergo a supernova
Which of the following Pluto observations did not help convince scientists to change Pluto's status from that of a planet?
A) discovery of the Kuiper Belt B) discovery of seasonal atmosphere, similar to comets C) discovery of large Kuiper Belt Objects D) discovery of Pluto's 5 moons
Alpha decay occurs in some radioactive nuclides with A > 150. The probability of an alpha particle being emitted depends on the energy of the alpha particle. Why is this so?