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
const2013 [10]
3 years ago
14

Energy conversion from potential energy (the energy of position or composition) to kinetic energy (the energy of motion) is illu

strated by the diagram of a roller coaster. When the coaster is in position A, the potential energy is and the kinetic energy is . As the coaster moves to position B, the potential energy is and the kinetic energy is . As momentum carries the coaster into position C, the potential energy is and the kinetic energy is . Finally as the coaster reaches position D, the potential energy is and the kinetic energy is
Physics
1 answer:
zhannawk [14.2K]3 years ago
5 0
<h2>The following is an elaboration of the differences in potential and kinetic energies based on the diagram of the roller coaster: </h2>

  • When the coaster is in position A, the potential energy is maximum and the kinetic energy is minimum.
  • As the coaster moves to position B, the potential energy is minimum and the kinetic energy is maximum .
  • As momentum carries the coaster into position C, the potential energy is minimum and the kinetic energy is maximum.
  • Finally, as the coaster reaches position D, the potential energy is maximum and the kinetic energy is minimum.
You might be interested in
A small car of mass 833 kg is parked behind a small truck of mass 1767 kg on a level road. The brakes of both the car and the tr
Ymorist [56]

Answer: the acceleration of the truck a_t is 0.6911 m/s²

Explanation:

Given the data in the question;

There is no external force on the system; net force on the system is 0

Mass of the truck with the woman M = 1767 kg + 41 kg = 1808 kg

mass of the car m = 833 kg

car acceleration a_c = 1.5 m/s²

now let a_t be the acceleration of the truck in opposite direction

Action force on the car = Reaction force on the car

ma_c = Ma_t

a_t = ma_c / M

we substitute

a_t = (833 × 1.5) / 1808

a_t = 1249.5 / 1808

a_t = 0.6911 m/s²    

Therefore, the acceleration of the truck a_t is 0.6911 m/s²

8 0
3 years ago
An 85 kg man stands in a very strong wind moving at 15 m/s at torso height. As you know, he will need to lean in to the wind, an
PSYCHO15rus [73]

Answer:

  a) T= 72.9 Nm

  b)      \Theta = 5 \textdegree

Explanation:

From the question we are told that

Mass 85kg

Speed 15m/s

Center of gravity 1.0m

Cylinder 50 cm wide and 90 cm long centered 1.2 m above the ground

a)Generally equation for force is given by

   F = 0.5 p A v^2

Mathematically solving for force exacted

   F = 0.5*1.2*0.9*0.5*15^2

   F= 60.75 N

Mathematically solving for torque

Torque,

    T = r * F

    T=1.2*60.75

   T= 72.9 Nm

b)Generally in solving for \theta

   Tan\theta = Torque/(Mass * Gravity)

   Tan\theta = (72.9)/(85 * 9.8)

     \Theta = 5 \textdegree

3 0
3 years ago
How does an octopus or a squid uses Newton's third law of motion to escape from enemies
Sloan [31]
I think everytime they swim away, the water pushes the enemy back, which makes the octopus go faster. Every action has an equal and opposite reaction. Hope this helps.
4 0
4 years ago
The gravitational attraction between two objects will what is the object move further apart
finlep [7]
The farther apart the two objects, the weaker the gravitational attraction between them.
3 0
3 years ago
The resistor potential is constant and the inductor emf increases. The resistor potential is constant and the inductor emf decre
maks197457 [2]

The question is incomplete, the complete question is

When an RL circuit is connected to a battery, what happens to the potential difference across the resistor and the emf across the inductor?

The resistor potential is constant and the inductor emf increases.

The resistor potential is constant and the inductor emf decreases.

The resistor potential is constant and the inductor emf is constant.

The resistor potential decreases and the inductor emf is constant.

The resistor potential decreases and the inductor emf increases.

The resistor potential decreases and the inductor emf decreases.

The resistor potential increases and the inductor emf increases.

The resistor potential increases and the inductor emf is constant.

The resistor potential increases and the inductor emf decreases.

Answer:

The resistor potential increases and the inductor emf decreases.

Explanation:

From Kirchoff's rule, we can easily see that voltage across the inductor decreases steadily in a RL circuit until it finally gets to zero when the circuit is connected to a battery. A graph of the drop in potential across the inductor is attached for more clarity.

The drop shown in figure (b) in the image attached is the drop in potential across the inductor when an RL circuit is connected to a battery.

6 0
4 years ago
Other questions:
  • How much energy is required to raise the temperature of one kilogram (liter) of water 1°c?
    12·1 answer
  • --
    10·1 answer
  • Please help...
    7·2 answers
  • Annalise observes a streak of light in the sky and says she is seeing a shooting star. What is she most likely
    8·1 answer
  • A researcher changes the DNA in a soybean plant so that it produces offspring with a resistance to weed killer. Which best descr
    11·2 answers
  • What is the importance of measurement​
    5·1 answer
  • If you are givin force and time, you can determine power if you can know.
    13·2 answers
  • What is the low end of the range of surface temperature for blue white stars
    7·1 answer
  • If the brakes on a 1,600 kg car exert a stopping force of
    5·1 answer
  • A car of mass 1250 kg drives around a curve with a speed of 22 m/s.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!