How many significant figures does each of the following numbers have?

1. 0.073

2. 0.73

3. 7.30

4. 73

How many significant figures does each of the following numbers have?

1. 0.0029

2. 2.90

3. 290

4. $2.90\times {10}^4$

Is the particle in FIGURE Q1.3 speeding up? Slowing down? Or can you tell? Explain.

FIGURE Q1.3

Does the object represented in FIGURE Q1.4 have a positive or negative value of $a_x?$ Explain.

FIGURE Q1.4

Does the object represented in FIGURE Q1.5 have a positive or negative value of $a_y?$ Explain.

FIGURE Q1.5

Determine the signs (positive, negative, or zero) of the position, velocity, and acceleration for the particle in FIGURE Q1.6.

FIGURE Q1.6

Determine the signs (positive, negative, or zero) of the position, velocity, and acceleration for the particle in FIGURE Q1.7.

FIGURE Q1.7

Determine the signs (positive, negative, or zero) of the position, velocity, and acceleration for the particle in FIGURE Q1.8.

FIGURE Q1.8