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
GrogVix [38]
2 years ago
7

A student is investigating the transfer of energy between potential and kinetic. The student observes a roller coaster at four l

ocations on the track and creates a graph based on her observations.
What conclusion can be made based on the graph?
A.Kinetic and potential energy change, but total energy stays the same.
B.Potential energy is increased, but kinetic energy stays the same.
C.Kinetic energy is created during a roller coaster ride.
D.Potential energy is destroyed during a roller coaster ride.

Chemistry
2 answers:
Ronch [10]2 years ago
5 0

Answer:

A.Kinetic and potential energy change, but total energy stays the same.

Explanation:

According to the Principle of Energy Conservation, the energy is not created nor destroyed, but transformed. Given the absence of non-conservative or external forces, it is conducted that total energy is the sum of potential and kinetic energy, whose proportion changes in the process. Neither potential energy nor kinetic energy are destroyed or created. Therefore, the answer is A.  

Bingel [31]2 years ago
4 0
I am not sure what the graph looks like, so I don’t know which parts of the roller coaster is marked. However, I believe the answer is C: Kinetic energy is created during a roller coaster ride, since a roller coaster typically has a lot of built up potential energy that converts to kinetic energy when the roller falls from a large hill on the tracks.
You might be interested in
Why do atoms always contain the same number of electrons and protons?
katovenus [111]

Answer:

An electron is a negatively charged subatomic particle and a proton is a positively charged subatomic particle. Positive charge(s) attract negative charge(s) and vice versa. The proton and neutron stay together and attract one another to give the atom an overall charge of zero (neutral). Which is the charge of an atom. When there is an unequal number of protons and neutrons an ion is formed. If the number of protons are more than the electron, a positively charged ion called cation is formed. On the other hand, if the number of electrons are more than the protons a negatively charged ion called anion is formed.

8 0
3 years ago
Read 2 more answers
PLEASE HELP!!!!!!!!!! DOING A TEST
Nastasia [14]
D is the correct answer
4 0
3 years ago
Read 2 more answers
Technetium-99 is an ideal radioisotope for scanning organs because it has a half-life of 6.0 h and is a pure gamma emitter. supp
Nadusha1986 [10]

Answer: 20 mg Te-99 remains after 12 hours.

Explanation:  N(t) = N(0)*(1/2)^(t/t1/2)

                        N(t) = (80 mg)*(0.5)^(12/6)

N(t) = 20 mg remains after 12 hours

3 0
2 years ago
Carbordum is silicon carbide SiC a very hard material used as an abrasive on sand paper and in other applications. it is prepare
AleksandrR [38]

Answer:

4.5 kilograms of silicon dioxide is required to produce 3.00 kg of SiC.

Explanation:

The balanced equation for the reaction between silicon dioxide and carbon at high temperature is given as:

SiO_2+3C\rightarrow SiC+2CO

1 mole silicon dioxide reacts with 3 moles of carbon to give 1 moles of silicon carbide and 2 moles of carbon monoxide.

Mass of SiC = 3.00kg = 3000.00 g

1 kg = 1000 g

Molecular mass of SiC = 40 g/mol

Moles of SiC = \frac{3000.00 g}{40 g/mol}= 75 mol

According to reaction, 1 mole of SiC is produced from 1 mole of silicon dioxide.

Then 75 moles of SiC will be produce from:

\frac{1}{1}\times 75 mol=75 mol of silicon dioxide.

mass of 75 moles of silicon dioxde:

75 mol\times 60 g/mol=4500 g=4.5 kg

4.5 kilograms of silicon dioxide is required to produce 3.00 kg of SiC.

3 0
3 years ago
a) One kmol of N2O4 dissociates at 25℃, 1 atm to form an equilibrium ideal gas mixture of N2O4 and NO2 in which the amount of N2
horsena [70]

Answer:

neq N2O4 = 0.9795 mol.....P = 0.5 atm; T = 25°C

Explanation:

             ni      change    eq.

N2O4    1          1 - x       0.8154.....P = 1 atm; T = 25°C

NO2      0        0 + x          x

∴ x = neq = Peq.V / R.T.....ideal gas mix

if P = 0.5 atm, T = 25°C; assuming: V = 1 L

⇒ x = neq = ((0.5 atm)(1 L))/((0.082 atm.L/K.mol)(298 K))

⇒ x = neq = 0.0205 mol

⇒ neq N2O4 = 1 - x = 1 - 0.0205 = 0.9795 mol

3 0
3 years ago
Other questions:
  • Example of Inertia of Rest:
    9·2 answers
  • Convert the average temperatures for each collected data point given below from °C to K. Plot the average cell potentials E (y-a
    7·1 answer
  • How do you know if a reaction is exothermic?
    15·1 answer
  • How much volume (in cm3) is gained by a person who gains 11.1 lbs of pure fat?
    12·1 answer
  • Where does the stonefish hide
    9·2 answers
  • It takes 945. kJ/mol to break a nitrogen-nitrogen triple bond. Calculate the maximum wavelength of light for which a nitrogen-ni
    5·1 answer
  • 30) How many grams of CH3OH must be added to water to prepare 210 mL of a solution that is
    15·1 answer
  • The element lead (Pb) consists of four naturally occurring isotopes with atomic masses 203.97302,205.97444,206.97587, and 207.97
    12·1 answer
  • The diameter of a biscuit is approximately 51 millimeters (mm). An atom of bismuth (Bi) is approximately 320. picometers (pm) in
    10·1 answer
  • What is the maximum amount of energy that could be produced from the reaction of 85.0 grams of Aluminum with 95.0 grams of oxyge
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!