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
pav-90 [236]
3 years ago
7

Can you please tell me what this is

Physics
1 answer:
Anna [14]3 years ago
4 0

Answer:

200000 J

Explanation:

From the question given above, the following data were obtained:

Mass (m) of roller coaster = 1000 Kg

Velocity (v) of roller coaster = 20 m/s

Kinetic energy (KE) =?

Kinetic energy is simply defined as the energy possess by an object in motion. Mathematically, it can be expressed as:

KE = ½mv²

Where

KE => is the kinetic energy.

m =>is the mass of the object

V => it the velocity of the object.

With the above formula, we can obtain the kinetic energy of the roller coaster as follow:

Mass (m) of roller coaster = 1000 Kg

Velocity (v) of roller coaster = 20 m/s

Kinetic energy (KE) =?

KE = ½mv²

KE = ½ × 1000 × 20²

KE = 500 × 400

KE = 200000 J

Therefore, the kinetic energy of the roller coaster is 200000 J.

You might be interested in
Why do we need gametes?
andrew11 [14]

Answer:

Gametes are the cells used during sexual reproduction to produce a new individual organism.

Explanation:

The male gamete or sperm, is a smaller, mobile cell that meets up with the much larger and less mobile female gamete, egg or ova.

6 0
3 years ago
Read 2 more answers
Two identical wind-up cars A and B are released. Car B has a 2 kilogram weight strapped to the back of the car. Which will have
koban [17]

Answer:

Car A would have a better average speed

Explanation:

added weight to a object that is self propelled will be slower than a identical object with no added weight

7 0
3 years ago
Which electromagnetic wave enables us to see objects?
Valentin [98]
Choose visible light
3 0
3 years ago
Read 2 more answers
A microwave oven operates at 2.00 ghz . what is the wavelength of the radiation produced by this appliance? express the waveleng
yan [13]
<span>Since frequency and wavelength have inverse relationship. It can be expressed by the equation: ν.λ = c Where, v = frequency of the electromagnetic wave. λ = it's wavelength c = the speed of light in a vacuum. v = 2.00 Ghz x 10^9 Hz / 1 Ghz = 2.00 x 10^9 Hz that means that in one second it covers 2.00 x 10^9 cycles. λ = 3.10^8 m/s / 2.00 x 10^9 /s = 1.25E-10 nanometers</span>
7 0
4 years ago
What type of thermometer do you use to measure temperature under the soil?
Serggg [28]

Answer:

soil thermomerter

Explanation:

5 0
3 years ago
Other questions:
  • Which of the following is not a constant or control for this experiment?
    9·2 answers
  • Name 2 common methods of polymerization.
    15·1 answer
  • Which statement corresponds to emission spectra?
    7·1 answer
  • The work of energy theorem states that an increase in net work results in what?
    8·1 answer
  • If two point sources of light are being imaged by this telescope, what is the maximum wavelength λ at which the two can be resol
    13·1 answer
  • A heavy meterstick has a mass of 1 kg. When the meterstick is thrown like a spear past you, you measure its momentum to be 2mv.
    13·1 answer
  • un resorte de 10cm de longitud recibe una magnitud de fuerza que lo estira hasta medir 15cm ¿cual es la magnitud de la tension u
    6·1 answer
  • The force exerted on a bridge pier in a river is to be tested in a 1:10 scale model using water as the working fluid. In the pro
    14·1 answer
  • Why is a noble gas different from other elements
    14·2 answers
  • a car initially at 65.00 m/s accelerates at 22.39 m/s^2. How far has the car traveled before it comes to a stop
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!