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]
3 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]3 years ago
8 0

Answer:

because it will help it go and funcion more

Explanation:

nika2105 [10]3 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
On which factor potential energy depends?​
Ludmilka [50]

▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂☘️

The potential energy of the object depends on

  • the height of the object with respect to some reference points,
  • the mass of the object,
  • the gravitational field the object is in.

▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂☘️

Hope it helps ~

3 0
2 years ago
Read 2 more answers
Farmer Wilcox wants to reduce the wind velocity near his farm. He should _____.
IRISSAK [1]
Plant trees around the perimeter of his fields
3 0
3 years ago
Read 2 more answers
Recessed incandescent luminaires not marked type ic and those marked for installing directly in ___________ must not have insula
slavikrds [6]

Answer:

Recessed incandescent luminaires not marked type ic and those marked for installing directly in insulated ceilings must not have insulation over the top of the luminaire.

Explanation:

Depending on how they interact with insulation, lighting fixtures are rated at various levels. Non-IC rated lighting fixtures can accommodate higher wattage bulbs, but they also pose the greatest fire risk when used with the incorrect insulation.

In locations with insulation, light fixtures that are not IC rated may be installed. But there is a condition. The distance between the fixture and any insulation should be 3 inches. But the 3 inch gap in the insulation would negate the goal of insulation by producing a lot of uninsulated space, so this defies logic. Building a box-style cover to cover the fixture on the attic side is one option to fix this. Drywall or foil-faced foam insulation can be used to create this box. After the cover is put in place, insulation can be added for maximum effectiveness.

To learn more about recessed incandescent luminaries. Click brainly.com/question/17218799

#SPJ4

6 0
1 year ago
A steel ball and a piece of clay have equal mass. They are dropped from the same height on a horizontal steel platform. The ball
emmasim [6.3K]

Answer: The ball (option A)

Explanation: change in momentum is defined by the formulae m(v - u) where m = mass of object, v = final velocity and u = initial velocity.

For the ball, it hits the ground and bounces back with the same speed, that's final velocity equals initials (v = - u)

Change in momentum = m( -u- u) = m(-2u) = m(-2u) = -2mu

For the clay, it final velocity is zero since it sticks to the floor, hence (v =0)

m(v - u) = m(0 - u) = - mu.

-2mu (change in momentum from the ball) is greater than - mu ( change in momentum of clay)

6 0
3 years ago
An electric car is being designed to have an average power output of 4,600 W for 2 h before needing to be recharged. (Assume the
MAVERICK [17]

Answer:

a)3312 x 10⁴ J

b)I = 57.5 A

c)9200 W

Explanation:

Given that

P =4600 W

Time t= 2 h = 2 x 3600 s= 7200 s

We know that

1 W = 1 J/s

a)

Energy stored in the battery = P .t

                                              =4600 x 7200 J

                                            =3312 x 10⁴ J

b)

We know that power P given as

P = V .I

V=Voltage  ,I =Current

4600 = 80 x I

I = 57.5 A

c)

The energy supplied = 4600 x 2 = 9200 W

7 0
3 years ago
Other questions:
  • Check
    13·2 answers
  • Find the height of a baseball with a mass of 0.15 kg that has a GPE of 73.5 J.<br><br> Help please?
    14·2 answers
  • | 1)
    12·1 answer
  • Which statement correctly compares the speed of light?
    13·2 answers
  • A veterinarian thinks that a dog has swallowed a key ring. Which types of electromagnetic waves is the doctor most likely
    7·2 answers
  • How high off the ground is a 5.5 kg object that has a gravitational potential energy of 8500 DE=mah​
    8·1 answer
  • A 3.5 Newton force (directed at a 30 degree angle with the vertical) to
    11·1 answer
  • A flask with a tap has a volume of 200cm3 when full of air, tye flask has a mass of 30.98g. the flask is connected to vacuum pum
    6·1 answer
  • Can I have an anime weirdo friend that's a girl pwease cuz guys are mean and don't understand. I'm a 16 yo guy​
    9·2 answers
  • How many milliliters are in 3.2 L? (1000 mL = 1L)
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!