Question

1. Choose the correct answer:
1. SI unit of pressure is
a Newton
b. Joule
C. Pascal d. watt
2. Speed of sound in air at 22° c is
a. 344 m/s b. 434 m/s
c. 3x10 m/s d. 331 m/s
3. The rate of change of velocity is called
a. Acceleration b. Potential energy
c. Gravity
4. The value of universal gravitational constant(G) is
a. 9.8 m/s? b. 6.673x10 " Nm'kg c. 6.037x10 m/s
d. displacement
-10
d. 6.736x10 Nm'ke​

Answer 1

Answer:

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Answer 2

Answer:

Explanation:

Choose the correct answer:

1. SI unit of pressure is

a Newton

b. Joule

C. Pascal d. watt

2. Speed of sound in air at 22° c is

a. 344 m/s b. 434 m/s

c. 3x10 m/s d. 331 m/s

3. The rate of change of velocity is called

a. Acceleration b. Potential energy

c. Gravity

4. The value of universal gravitational constant(G) is

a. 9.8 m/s? b. 6.673x10 " Nm'kg c. 6.037x10 m/s

d. displacement

-10

d. 6.736x10 Nm'k