1. If 1 in = 2.54 cm, then convert the distance travelled by a worm in one hour from 16 cm to in. Round to 2 digits

Select one:

a.6.3 in

b.40 in

c.62 in

d.41 in

2. An atom has a radius of 0.05 nm. Express this radius in mm. 1 nm = 10^-9 m

Select one:

a.5 x 10^-9mm

b.5 x 10^-7mm

c.5 x 10^-8mm

d.5 x 10^-6mm

3. If a = (v₂ - v₁)/t then v₂ =

Select one:

a.v₁- at

b.t/a +v₁

c.a/t +v₁

d.v₁+ at

4. ConsiderZ=(R²+(X_LX_C)²). Find R if Z = 5.5 ohm, X_L= 2.1 ohm, X_C= 3.5 ohm

Select one:

a.5.3 ohm

b.5.7 ohm

c.4.1 ohm

d.6.2 ohm

5. If E = mgh + mv²/2 then h =

Select one:

a.(2E - mv²)/(2mg)

b.E - mv²/(2mg)

c.E - mv²/(mg)

d.

2E - mv²/(2mg)

e.

(E - mv²)/(2mg)

f.If E = mgh + mv²/2 then h =

6. V = lwh, if l = 16.7 m, w = 10.5 m, h = 25.2 m, then V = ... Round to one decimal digit.

Select one:

a.4418.8 m³

b.4418.8 m²

c.175.4 m²

d.175.4 m³

7. You carry a 3.3 kg backpack. Since 1 kg = 2.2 lb, find the mass of the backpack in pounds, rounded to the nearest tenth.

Select one:

a.0.7 lb

b.1.5 lb

c.7.3 lb

d.7.2 lb

8. 2 = a2 + b2, if c = 4.0 m/s and b = 3.0 m/s, then a =...

Select one:

a.2.7 m/s

b.2.6 m/s

c.5.0 m/s

d.7.0 m/s

9. A load lifted by a crane is 375 kg. Convert this mass in mg.

Select one:

a.375000 mg

b.37.5 mg

c.3.75 x 10⁸mg

d.3.75 x 10⁹mg

10. V = lwh, if l = 16.7, w = 10.5, h = 25.2, then V =

Select one:

a.4418.82

b.52.4

c.420.84

d.175.35

11. C = d, if C = 495 then d =

Select one:

a.157.56

b.0.0063

c.1555.09

d.491.86

12. c² = a² + b², if a = 4 and b = 3, then c =

Select one:

a.25

b.5

c.7

d.49