because the snow suddenly gets too slushy, you decide to carry your 100-newton sled the rest of the way home. How much workdo you you do when you pick up your sled, lifting it 0.5meter upward? How much work do you do to carry the sled if your house is 800 meters away?

Answers

Answer 1

Answer:

You do 50 Joule work when you pick up your sled, lifting it 0.5meter upward.

You do no work to carry the sled to your home.

What is work?

Work in physics is the energy that is transferred to or from an item when a force is applied along a displacement. For a constant force acting in the same direction as the motion, the work is simply equal to the product of the force's magnitude and the distance travelled.

When a force is applied, it is said to have a component that moves the point of application, or it is said to have positive work.

Hence, lifting it 0.5meter upward, you have to work = weight of the sled × distance × cos 0°

= 100 N × 0.5 meter × 1

= 50 Joule.

To carry the sled to your home, you have to work = weight of the sled × distance × cos 90°

= 100 N × 800 m × 0

= 0.

Learn more about work here:

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Answer 2

Answer: When you lift it the work is 50 joules. When heading home the work is 80000joules

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Answers

The object is at rest. This is because time is going by and there’s no distance being added

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Protons are made up of ___ up quark(s) and ___ down quark(s).a. 1, 1
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Answers

The correct answer is C. 2, 1

Explanation:

In physics, protons along with neutrons and electrons are the particles that compose atoms which are the basic unit of matter. Protons different neutron have a positive charge and along with neutrons create the nucleus of the atoms. In terms of composition, protons are made up of three quarks (elementary particles) that are divided into two up quarks and one down quark that are two types of quarks with low mass. According to this, it can be concluded protons are made up fo 2 up quarks and 1 down quark.

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Answers

Answer:

Measures a slower course of time

Explanation:

According to the theory of relativity, there is a difference in the time measured by two observers, due to a relative speed difference between them. In other words, you observe that a clock that moves with respect to you will measure a slower course of time than a clock that is at rest in your frame of reference.

The speed of sound waves through two different media, steel and air, was recorded. According to the graph, sound waves travel. A) through steel, but not through air
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Answers

Answer: The correct answer is Option B.

Explanation:

Sound waves are a type of longitudinal waves. These waves are the waves in which particles of the medium travel in the direction of the wave. These waves require a medium to travel.

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