In the SI prefix, the value of 2000 W is also written as 2 kW. This is because 1 kW = 1000 W.
What is meant by the SI prefix?SI prefixes may be defined as a collection or sequence of prefixes to units in the International System of Units, or SI. These can denote very small or very large amounts.
These types of prefixes are most commonly utilized in computing to refer to storage space, such as bytes, even though storage is not an official SI unit.
The designations of multiples and subdivision of any unit may be arrived at by combining with the name of the unit the prefixes deka, hecto, and kilo meaning, respectively, 10, 100, and 1000, and deci, centi, and milli, meaning, respectively, one-tenth, one-hundredth, and one-thousandth.
Therefore, in the SI prefix, the value of 2000 W is also written as 2 kW. This is because 1 kW = 1000 W.
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Sam has a toy truck that he wants to roll on three different surface areas; carpet, wood, and brick. In two sentences, predict which surface area the toy truck will move the fastest on and why.
wood - assuming a flat surface.
The carpet will "grab" the car due friction. A piece of wood will be a smoother surface than a brick, so less friction..
Can you help me answer these questions about Colonel Bluford?
He was an engineer a _______
and a USAF ______ and a _____
astronaut.
What college did he graduate from and with what degree?
He was inducted into the _____ ___ ____ __ ____ in 1997, and inducted into the ______ _______ ______
Hall of Fame in 2010.
The answer relating to Colonel Bluford are as follows:
1) He was an engineer a mechanical engineer and a USAF lieutenant colonel and a NASA astronaut.
2) He graduated from Pennsylvania State University with a Bachelor of Science degree in Aerospace Engineering.
3) He was inducted into the International Space Hall of Fame in 1997, and inducted into the U.S. Astronaut Hall of Fame in 2010.
What was Colonel Bluford famous for?
Colonel Guion S. Bluford Jr. was a famous astronaut who made history as the first African American to travel to space.
He was a mechanical engineer, a U.S. Air Force lieutenant colonel, and a NASA astronaut who flew on four Space Shuttle missions. Bluford's contributions to the field of space exploration have been recognized with numerous awards and inductions into hall of fames.
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Read and analyze the following statements given. Tell if the statement is true. If not, change the underlined word(s) to make it true.
_____________ 1. A wedge is a modified inclined plane.
_____________ 2. A single wedge comprises only one inclined plane.
_____________ 3. An axe is a wedge composed of a single inclined plane.
_____________ 4. The narrower the wedge is, the sharper it gets.
_____________ 5. More effort is applied to a sharp wedge to split an object.
_____________ 6. A wedge changes the direction of the force that is applied to it.
_____________ 7. A door stopper is a wedge used to cut an object.
_____________ 8. A wedge can also hold an object in its place.
_____________ 9. A wedge with a shorter and wider tip requires less effort to do its work.
_____________ 10. A double wedge is composed of two inclined planes put side-to-side to form a sharp edge.
Answer:
1. True
2. False. A single wedge consists of two inclined planes joined together.
3. False. An axe is a double wedge, consisting of two inclined planes joined together to form a sharp edge.
4. False. The wider the wedge is, the sharper it gets.
5. False. Less effort is required to split an object with a sharp wedge.
6. True
7. False. A door stopper is a wedge used to hold a door in place, not to cut an object.
8. True
9. False. A wedge with a longer and narrower tip requires less effort to do its work.
10. True
Explanation: