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
Vladimir [108]
2 years ago
9

explain how a roller coaster functions using gravity and momentum. Why does it not need an engine or a motor to speed it up and

slow it down?
Physics
2 answers:
MaRussiya [10]2 years ago
8 0

Answer:

because it will help it go and funcion more

Explanation:

nika2105 [10]2 years ago
3 0

Answer:

It uses graivity and momentum because since we all know, gravity pulls things down, they have a chaint hat lifts the carts up, and then when it gets to a top, it releases it. When it goes down very high, it will go faster. Then it uses momentum when it goes up, then down again, or a loop to regain speed. IT doesn't need a engine or a motor to speed it up or slow it down because gravity and momentum is already doing the job a engine could. Like I said, when it is high in the sky and released, it goes down in incredible speed. And when it needs more speed to keep the ride going, it can add a loop or tight turns to increase it more.

You might be interested in
Why is physics an important part of history
tigry1 [53]

Answer:

History and physics are intertwined through all the revolutionary thinkers, scientists, and people who studied these ideas. For example, many historical thinkers such as Isaac Newton and Galileo Galilei not only had revolutionary ideas, but they also changed life forever as the people knew it. It shocked the people and taught them new things, and upset the church.

Explanation:

8 0
3 years ago
Read 2 more answers
Using planck's constant and a wavelength of 656e-9 what is the energy of the photon
lbvjy [14]

Answer:

3.03e-19 J

Explanation:

Use the formula E = hc/λ

Where:

h (Planck's constant) = 6.626e-34 J*s

c (speed of light, constant) = 3.00e8 m/s

λ (wavelength) = 656e-9 m

E = energy (in Joules)

E = (6.626e-34 * 3.00e8) / 656e-9 = 3.03018293e-19 = 3.03e-19 J

4 0
2 years ago
A roller coaster has a 100.0 kg cart at the top of a 22.0 m ramp. As it goes down the ramp, it change 800.0 joules of energy to
AlekseyPX

Answer:

d.20760 J

Explanation:

We are given that

Mass of cart=m=100 kg

At the top,h=22 m

Amount of energy convert into heat due to friction=E=800 J

We have to find the kinetic energy at the bottom of the ramp.

Potential energy drop=mgh=100\times 9.8\times 22=21560 J

Kinetic energy at the bottom=Potential energy drop-energy lost due to friction

Kinetic energy at the bottom =(21560-800) J

Kinetic energy at the bottom=20760 J

Hence, the kinetic energy at the bottom of the ramp=20760 J

d.20760 J

5 0
3 years ago
A satellite orbiting Earth at a velocity of 3700 m/s collides with a piece of
Gekata [30.6K]

Answer: B

Explanation:

You can use the conservation of momentum, under the assumption that no mass was lost when the collision occurred. The initial momentum of the system must equal the final momentum of the system. Our system is the region including, and only including, the satellite and the space debris. Classical momentum is defined as the product of mass and velocity:

p_i=p_f

m_1v_1_i+m_2v_2_i=m_1v_1_f+m_2v_2_f

Due to mass 1 equaling mass 2, we can factor these quantities out:

m(v_1_i+v_2_i)=m(v_1_f+v_2_f)

Cancel the mass term on both sides to get:

v_1_i+v_2_i=v_1_f+v_2_f

We have the initial and final velocities for everything besides the final velocity of the satellite. Plug everything in:

3700m/s+6000m/s=v_1_f+3700m/s

v_1_f=6000m/s

7 0
1 year ago
Physics Question (attached)
hammer [34]

Answer:

The answer is "\bold{10.6 \ \ \frac{m}{s^2}}"

Explanation:

The  Formula of acceleration:

\bold{a= \frac{v-v_0}{t}}

Given value:

t= 50\\v= 856\\v_0= 324

Calculating the acceleration:

\to  a = \frac{(856 - 324)}{50}\\\\

       = \frac{(532)}{50}\\\\= \frac{(106.4)}{10}\\\\= 10.64 \ \ \frac{ m}{s^2}

8 0
3 years ago
Other questions:
  • A _______ is often used to cut holes to install outlet boxes in old installations.
    12·1 answer
  • What is the final speed of a 60 kg boulder dropped from a 111 meter cliff
    10·1 answer
  • Give reason 1.electromagnets are temporary magnets ?
    13·1 answer
  • A 15 kg bucket of water is suspended by a very light ropewrapped around a solid uniform cylinder 0.300 m in diamter withmass 12.
    7·1 answer
  • According to Newton’s first law of motion, if a person is swinging a rock st the end of a string and the string breaks, what wil
    14·1 answer
  • 4) The mass of Pluto is 1.31 x 1022 kg and its radius is 1.15 x 106 m. What is the acceleration of
    5·1 answer
  • What is true about energy that is added to a closed system?
    15·2 answers
  • A car travels at 2000 meters east in 40 seconds. What is the cars velocity
    6·1 answer
  • A sample of carbon dioxide (C°p,m = 37.11 J K−1 mol−1) of mass 2.80 g at 27°C is allowed to expand reversibly and adiabatically
    7·1 answer
  • What is the wavelength of an FM radio
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!