1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
labwork [276]
3 years ago
13

Explain why the roller coaster’s potential energy is greater at point 1 than at point 4.

Chemistry
1 answer:
vodomira [7]3 years ago
8 0

Answer:

The answer to your question is given below.

Explanation:

Potential energy is the energy stored in a body by virtue of its location. Mathematically, potential energy is expressed as:

Potential energy (P.E) = Mass(m) x Acceleration due to gravity (g) x Height (h)

P.E = mgh

Since the mass of the object is always constant and the acceleration due to gravity is also constant, it therefore means that the potential energy of an object is directly proportional to the height where the object is located.

This implies that as the height to which the object is located increases, the potential energy of the object also increases and as the height to which the object is located decreases, the potential energy of the object will also decrease.

In the diagram given above, point 1 is higher than point 4. This will cause the potential energy of the roller to be higher at point 1 than at point 4.

You might be interested in
Determine the theoretical yield of HCl if 60.0 g of BC13 and 37.5 g of H20 are reacted according to the following balanced react
Pie

Answer : The theoretical yield of HCl is, 56.1735 grams

Explanation : Given,

Mass of BCl_3 = 60 g

Mass of H_2O = 37.5 g

Molar mass of BCl_3 = 117 g/mole

Molar mass of H_2O = 18 g/mole

Molar mass of HCl = 36.5 g/mole

First we have to calculate the moles of BCl_3 and H_2O.

\text{Moles of }BCl_3=\frac{\text{Mass of }BCl_3}{\text{Molar mass of }BCl_3}=\frac{60g}{117g/mole}=0.513moles

\text{Moles of }H_2O=\frac{\text{Mass of }H_2O}{\text{Molar mass of }H_2O}=\frac{37.5g}{18g/mole}=2.083moles

Now we have to calculate the limiting and excess reagent.

The balanced chemical reaction is,

BCl_3(g)+3H_2O(l)\rightarrow H_3BO_3(s)+3HCl(g)

From the balanced reaction we conclude that

As, 1 mole of BCl_3 react with 3 mole of H_2O

So, 0.513 moles of BCl_3 react with 3\times 0.513=1.539 moles of H_2O

From this we conclude that, H_2O is an excess reagent because the given moles are greater than the required moles and BCl_3 is a limiting reagent and it limits the formation of product.

Now we have to calculate the moles of HCl.

As, 1 mole of BCl_3 react to give 3 moles of HCl

So, 0.513 moles of BCl_3 react to give 3\times 0.513=1.539 moles of HCl

Now we have to calculate the mass of HCl.

\text{Mass of }HCl=\text{Moles of }HCl\times \text{Molar mass of }HCl

\text{Mass of }HCl=(1.539mole)\times (36.5g/mole)=56.1735g

Therefore, the theoretical yield of HCl is, 56.1735 grams

7 0
3 years ago
How many moles of Fluorine (F2) are<br><br> needed to completely react 8.0<br><br> moles of NF3?
Anna [14]

Answer:

12 moles of F₂

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

N₂ + 3F₂ —> 2NF₃

From the balanced equation above,

3 moles of F₂ reacted to produce 2 moles of NF₃.

Finally, we shall determine the number of mole of F₂ needed to produce 8 moles of NF₃. This can be obtained as illustrated below:

From the balanced equation above,

3 moles of F₂ reacted to produce 2 moles of NF₃.

Therefore, Xmol of F₂ will react to produce 8 moles of NF₃ i.e

Xmol of F₂ = (3 × 8)/2

Xmol of F₂ = 12 moles

Thus, 12 moles of F₂ is needed for the reaction.

8 0
3 years ago
Q2.Which is true about potassium?
Olenka [21]

\bf \LARGE\rightarrow{Very  \: reactive}

5 0
3 years ago
Read 2 more answers
How much heat is required to produce 2 moles of C2H2?
Kruka [31]

Answer: To calculate the enthalpy of combustion of acetylene, C2H2 , all you have to do is ... More specifically, you need to subtract from the sum of enthalpies of ... chemical reaction has 2 moles of C2H2 reacting to produce 2 moles of ... since the heat of combustion is expressed as energy per mole

5 0
3 years ago
The temperature of a 500 ml sample of gas increases from 150 k to 300 k. what is the final volume of the sample of gas, if the p
seropon [69]
Upon a constant pressure (P), volume (V) of a gas will vary in direct proportion to changes in temperature (T). So V1/T1 = V2/T2
V2 = V1T2/T1 = (500)(300)/150
V2 = 150000/150 = 1000 mL
5 0
3 years ago
Other questions:
  • How many elements does the periodic table have quick my wifi not working help please
    15·1 answer
  • Physical conditioning or acquired skill cannot be inherited.<br> True<br> False
    8·1 answer
  • Anabelle has noticed that her strawberry plants haven't produced any strawberries yet this year.
    15·1 answer
  • How many atoms are there in 10.2 moles of Phosphorous?​
    11·1 answer
  • Based on the table, which atom has a charge of -1
    9·2 answers
  • A). Polonium is a rare element with 33 radioisotopes. The most common one, 210Po, has 82 protons and 128 neutrons. When 210Po de
    14·1 answer
  • Two nitro (NO_2) groups are chemically bonded to a patch of surface. They can't move to another location on the surface, but the
    13·1 answer
  • Which best describes the process that arrow 1 represents?
    14·1 answer
  • . Based on their position in the periodic table, predict which (of the two elements given) will be more reactive Circle your cho
    14·1 answer
  • How is a strand of DNA like a sentence?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!