Physical science home work!!!?

Question

HELP ME!!!!!!

ok...here's the problems..if you answer them (correctly) omg you will like sooo be my hero!!

Answer each of the following problems by using the factor-label method to show all your work. be sure to round all answers to the correct numsignificantnicant digits.

1.) 35m=___km

2.) 100 m=___m

3.) 4.5kg=___g

4.) 1x10 to the seventh power nm=____m

5.) 4.90Mg=___m

6.) 0.65mL=___L

7.) 8900L=____L

8.Hz3.09GHz=___Hz

9.) 190.50mm=___m

10.) 0.75dL=___L

btw..this is my real home work which is due 2marrow...help me...I at leasst want most of them done..

Answer 1

No need for insults! Jesus, you have no idea how old this kid is OR his situation.  The worlds needs less a******s.  

Answer 2

1) 35m = 35m * 1km/1000m = 35 * 10^-3 km

2) 100 m = 100 m (Are you sure this is the question? Both sides, you have m)

3) 4.5 kg = 4.5kg * 1000g/1kg = 4500 g

4) 1x10^7 nm = 1x10^7 nm * 1m/1x10^9nm = 1x10^-2 m

5) On left side, you have miligram (Mg) and on right side you have m(meter). It makes no sense. So check the question.

6) 0.65mL = 0.65mL * 1L/1000mL = 0.65*10^-3 L = 6.50 * 10^-4 L

7) 8900 L = 8900 L (both sides you have L, are you sure this is the question?)

8) 3.09GHz = 3.09GHz * 1*10^9 Hz/1 Ghz = 3.09 * 10^9 Hz

9) 190.50 mm = 190.50 mm * 1m/1000 mm = 0.19050 m = 0.19m (after rounding off)

10) 0.75dL = 0.75dL * 1L/10dL = 0.075 L

Answer 3

I would help but frankly this is pathetic.  

All you have to do is move the decimal place over that many units of change.

1) move three to the left

2)...they are same unit

3) three to the right

4) 6 to the left

5) mass and distance/length do not compare

6)three to the left

7) same unit

8... 9... 10... .i mean just follow the patterns