A student is pushing a desk across the floor of the classroom. Even though there is friction, the desk still accelerates to the right. Answer the following questions concerning the desk. The student took 90 seconds to move the desk 15 feet across the room? What was the desk's velocity? What was the desks rate of acceleration? What is the net force used by the student to move the desk?

Why is rain likely when warm, moisture-laden air meets cold air? a) the lighter warm air will rise and cool down, causing condensation and rain. b) the cold air moves faster and pushes the warm air away, causing condensation and rain. c) the moisture in the warm air condenses on contact with the cold air, causing rain to fall. d) the cold air mixes with the warm air, reducing its temperature causing moisture to condense.

How many electrons does each element require in its valence shell to become stable?

2. which of the following devices is associated with the reception of radio signals? o a. demodulator o b. transmitting antenna o c. oscillator o d. microphone