Which statement explains why spontaneous generation is a mistaken idea?

A 70 N force pulls a box straight up 5 m above the ground. How much work is done on the box?

Bingel [31]

D. 350 J

Explanation:

Given parameters:

Force of pull = 70N

Distance = 5m

Unknown:

Workdone on the box = ?

Solution:

Workdone is defined as the force applied on a body to move it through a distance.

Work done = Force x distance moved

Work done = 5 x 70 = 350J

Learn more:

Work done brainly.com/question/9100769

#learnwithBrainly

5 0

3 years ago

What do we assume about the volume of the actual molecules themselves in a sample of gas, compared to the bulk volume of the gas

Firlakuza [10]

We assume that the volume of the molecules themselves in a gas sample is negligible compared to the bulk volume of the gas sample: this helps us to explain why gases are so compressible.

4 0

3 years ago

During a reaction with solids generally the _______ the size of each piece, the larger the total surface area. This means ______

Degger [83]

Answer:

A

Explanation:

I'm assuming this question implies that the surface area is in relation to the volume of the pieces. In that case, the SMALLER the size of each piece, the larger the surface area. This is because more particles are able to fit into the container if they are smaller, leading to more surface area. Since more pieces can fit into the container, MORE collisions happen according to collision theory. I cannot add a link, but for a helpful analogy, look up "How To Speed Up Chemical Reactions (and get a date) - Aaron Sams.

7 0

3 years ago

a sample of gas initially occupies 5.50 liter at a pressure of 0.750 atm at 13.0 C. what will the temperture change to 22.5 C an

sergey [27]

Answer:

The pressure will be 2.84 atm

Explanation:

The gas laws are a set of chemical and physical laws that allow us to determine the behavior of gases in a closed system. The parameters evaluated in these laws are pressure, volume, temperature and moles.

Boyle's law indicates that the volume is inversely proportional to the pressure: if the pressure increases, the volume decreases and if the pressure decreases, the volume increases. Boyle's law is expressed mathematically as:

P * V = k

On the other hand, Charles's law indicates that with increasing temperature, the volume of the gas increases and with decreasing temperature, the volume of the gas decreases. That is, they are directly proportional. This is expressed mathematically as:

$\frac{V}{T} =k$

Finally, the Gay-Lussac law says that at constant volume, the pressure of the gas is directly proportional to its temperature. Mathematically, it is expressed as:

$\frac{P}{T} =k$