What happens when a vector is multiplied by a scalar?

a) It gets rotated in the plane

b) It gets longer

c) It turns into a scalar

d) It gets either longer or shorter, but does not change direction

Why do objects appear to be bent when partially submerged under water?

Sandra moves 14 m in 2 minutes. What is Sandra's average velocity (in m/s) ? A. 1.98 m/s B. 0.23 m/s C. 0.78 m/s D. 2.56 m/s

Ow is an electromagnet different from a bar magnet? Question 3 options: a. Only a bar magnet has a magnetic field. b. Only an electromagnet attracts materials made of iron. c.

A sound pulse emitted underwater reflects off a school of fish and is detected at the same place 0.01 s later. how far away are the fish?

A wheelbarrow is a good example of a second-class lever. True or False

What two equations can be used to determine the speed of a wave

Which force has an infinite range and is always attractive?

A ramp with a mechanical advantage of 8 lifts objects to a height of 1.5 meters how long is the ramp

Sodium, atomic number 11, forms an ionic bond with an atom of an unknown element. What is one possible choice for the ther element in the compound?

A ship leaves the island of Guam and sails a distance 255 km at an angle 49.0 o north of west. Part A: In which direction must it now head so that its resultant displacement will be 125 km directly east of Guam?