All categories

2 years ago

Which of the following is not an example of work, according to the scientific definition

Physics

2 answers:

bogdanovich [222]2 years ago

6 0

Leaning against a brick wall.

All the others use scientific forces of work.

-Steel jelly.

Vera_Pavlovna [14]2 years ago

5 0

The scientific definition of Work is a force acting through a distance.

When you lean against a brick wall on the side of a building, nothing is moving, so no force is acting through any distance. So this choice is not an example of work.

You might be interested in

There are two types of magnets some of them are _______ and some are _________

kogti [31]

Answer:

There are many types of magnets, which are generally divided into two categories: permanent magnet and a soft magnet.

Explanation:

8 0

2 years ago

Read 2 more answers

A 5Kg ball rolling to the right at a velocity of 5m/s hits a stationary 10Kg ball. It is an elastic collision and the final velo

exis [7]

Answer:

magnitude of v = 2.5 m/s, and in the same direction as the initial velocity of the 5 kg ball.

Explanation:

We use conservation of linear momentum in an elastic collision to solve for the unknown velocity v:

Pi = Pf

5 kg * 5 m/s + 10 kg * 0 m/s = 5 kg * 0 m/s + 10 kg * v

25 kg m/s = 10 kg * v

v = 25/10 m/s

v = 2.5 m/s

and in the same direction as the initial velocity of the 5 kg ball.

7 0

2 years ago

At what temperature will wood and iron apper equally hot or equally cold to our body?

Nonamiya [84]

They will feel equally hot or cold at the same temperature.

What do you mean by temperature?

Temperature is a physical parameter that describes how hot stuff or radiation is. There are 3 different types of temperature scales: those described in regards to the average translational kinetic energy per freely moving microscopic substance in a body, such as a atom, compound, or anion, such as the SI scale; those that rely solely on purely macroscopic properties and thermodynamic principles, such as Kelvin's original definition; and those that are not defined by theoretical principles, but are defined by convenient empirical properties of particulate matter.

If they are the same temperature as the area of your body that is touching them, they will feel equally hot or cold. There will be no heat movement if the wood and iron at the same temperature as the skin, and the iron's higher thermal conductivity will be irrelevant. The specific temperature cannot be specified because if you touch the materials with your fingertips, the wood and iron must match that temperature, and if you test them with your tongue, which is often considerably warmer than your hands, the wood and iron must be warmer.

To know more about temperature, click on the link

brainly.com/question/13165448

#SPJ10

6 0

2 months ago

Is an engine-activated booster unit that reduces the effort required to apply the hydraulic brakes

Elodia [21]

Answer:

Power brake is a device in vehicles which assists in braking by reducing the effort/force needed to apply the brakes on the pedal.

7 0

2 years ago

Lena would like to be able to know her exact location on a map as she travels across the country. Which technology would best he

lozanna [386]

D) GPS, because it uses satellites that provide position and velocity data

3 0

2 years ago