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Chapter 1: Problem 37

How many millimeters in a kilometer?

Short Answer

Expert verified
Answer: There are 1,000,000 millimeters in a kilometer.

Step by step solution

01

Know the conversion factors

It is essential to know the conversion factors between the units involved. There are 1,000 meters in a kilometer and 1,000 millimeters in a meter.
02

Convert kilometers to meters

Since we are given a distance in kilometers, we need to convert it to meters first. To do this, we multiply the number of kilometers by the conversion factor, which is 1,000 meters in 1 kilometer: Number of meters = Number of kilometers × 1,000
03

Convert meters to millimeters

Now that we have the distance in meters, we can convert it to millimeters. We do this by multiplying the number of meters by the conversion factor, which is 1,000 millimeters in 1 meter: Number of millimeters = Number of meters × 1,000
04

Combine the steps

Now, we can combine the previous steps to convert directly from kilometers to millimeters: Number of millimeters = (Number of kilometers × 1,000 meters) × 1,000 millimeters = Number of kilometers × 1,000,000
05

Calculate the number of millimeters in 1 kilometer

Using the formula derived in Step 4, we can find the number of millimeters in 1 kilometer: Number of millimeters in 1 kilometer = 1 × 1,000,000 = 1,000,000 So, there are 1,000,000 millimeters in a kilometer.

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Most popular questions from this chapter

By how much does the volume of a cylinder change if the radius is halved and the height is doubled? a) The volume is quartered. d) The volume doubles. b) The volume is cut in half. e) The volume c) There is no change in the volume. quadruples.

Advances in the field of nanotechnology have made it possible to construct chains of single metal atoms linked one to the next. Physicists are particularly interested in the ability of such chains to conduct electricity with little resistance. Estimate how many gold atoms would be required to make such a chain long enough to wear as a necklace. How many would be required to make a chain that encircled the Earth? If 1 mole of a substance is equivalent to roughly \(6.022 \cdot 10^{23}\) atoms, how many moles of gold are required for each necklace?

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Two different forces, acting on the same object, are measured. One force is \(2.0031 \mathrm{~N}\) and the other force, in the same direction, is \(3.12 \mathrm{~N}\). These are the only forces acting on the object. Find the total force on the object to the correct number of significant figures.

What angle does \(\vec{B}=\left(B_{x}, B_{y}\right)=(30.0 \mathrm{~m}, 50.0 \mathrm{~m})\) make with the positive \(x\) -axis? What angle does it make with the positive \(y\) -axis?
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