Answer with Explanation:
When solving a problem in math, chemistry or physics, it is necessary to understand all the words and their definitions. If not, start with finding out their meanings, one by one.
Here the key word to know is pascal, (P), which is a unit of measure for pressure, defined as
pressure = Force / applied area
1 pascal = 1 newton / square metre or
1 P = 1 N/sq.m.
Here, we have been given:
Force = 150 N
Area = 0.25 m^2.
Thus the pressure
= Force / Area
= 150 N / 0.25 m^2
= 150/0.25 N/m^2
= 600 pascals.
[ note that the abbreviations are written in capitals, while the full words, units of measurement, are written without capitalization, since they are no longer proper names]
Answer:
an instrument for measuring an electromotive force by balancing it against the potential difference produced by passing a known current through a known variable resistance.
Answer:
A. Speed
Explanation:
A vector quantity is a quantity which has both magnitude and direction. Here in the given options, speed is a scalar quantity but not the vector quantity.