Conversion Practice Carry out the requested conversions to c

Conversion Practice: Carry out the requested conversions to change the unit of the quantity. 37 km = ? m 0.00354 mg = ? g 2.44 times 10^-4 kg = ? g = ? mg 34.8 ML = ? L = ? mL 3.777 times 10^12 ns = ? s = ? ks If there are 2.54 cm in 1 inch, how many cm are there in a length of 304 in.?

Solution

when we convert bigger unit into smaller unit then we multiply.

when we convert smaller unit into bigger unit then we divide.

Ans(a):

we know 1km=1000m

then 37km=37*1000m=37000m

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Ans(b):

we know 1 mg= 1/1000 g

then 0.00354 mg =0.00354 * 1/1000 g= 0.00000354 g

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Ans(c):

we know 1 kg= 1000 g

then 2.44 x 10^(-4) kg = 2.44 x 10^(-4) * 1000 g = 2.44 x 1/10000 * 1000 g = 2.44 x 1/10 g= 0.244 g

we know 1 g = 1000 mg

then 0.244 g= 0.244 *1000 mg= 244 mg

Hence 2.44 x 10^(-4) kg = 0.244 g = 244 mg

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Ans(d):

we know 1 ML= 10^6 L

then 34.8 ML= 34.8 * 10^6 L= 3400000 L

we know 1 L= 1000 mL

then 3400000 L =3400000 *1000 mL =3400000000 mL

Hence 34.8 ML= 3400000 L=3400000000 mL