Final answer:
The position vs time graph of an object that is speeding up will be a curve, not a straight line, indicating acceleration. Constructive and destructive interferences are the two types of wave interference. The Pythagorean theorem can be used to find the length of the resultant vector of two orthogonal vectors.
Step-by-step explanation:
True or False: The position vs time graph of an object that is speeding up is a straight line.
b. False
The position vs time graph of an object that is speeding up is not a straight line. Instead, it will be a curve where the slope increases with time, indicating an increase in speed or acceleration. For constant speed, the graph will be a straight line with a constant slope.
Interference Types
Is the following statement true or false? The two types of interference are constructive and destructive interferences.
a. True
When two waves meet, they can interfere with each other. If they align such that their crests and troughs reinforce each other, it's called constructive interference. Conversely, if they align so that crests meet troughs, effectively reducing the resultant amplitude, it's known as destructive interference.
Pythagorean Theorem
True or False-We can use Pythagorean theorem to calculate the length of the resultant vector obtained from the addition of two vectors which are at right angles to each other.
a. True
The Pythagorean theorem can indeed be applied to calculate the length of a resultant vector when two vectors at right angles (orthogonal) to each other are added. By considering these vectors as sides of a right-angled triangle, the hypotenuse represents the resultant vector, and its length can be determined using the theorem.