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
Karolina [17]
4 years ago
10

a roller coaster has a mass of 275kg. it sits at the top of a hill with a height 85m if it drops from this hill, how fast is it

going when it reaches the bottom [ assume there is no air resistance of friction]

Physics
1 answer:
prohojiy [21]4 years ago
3 0
Hope this helps you.

You might be interested in
An observer stands 24.7 m behind a marksman practicing at a rifle range. The marksman fires the rifle horizontally, the speed of
GaryK [48]

Explanation:

The given data is as follows.

     Velocity of bullet, c_{p} = 814.8 m/s

    Observer distance from marksman, d = 24.7 m

Let us assume that time necessary for report of rifle to reach the observer is t and will be calculated as follows.

               t = \frac{24.7}{343}      (velocity in air = 343 m/s)

                 = 0.072 sec

Now, before the observer hears the report the distance traveled by the bullet is as follows.

               d_{b} = c_{b} \times t

                          = 814.8 \times 0.072

                          = 58.66

                          = 59 (approx)

Thus, we can conclude that each bullet will travel a distance of 59 m.

8 0
3 years ago
Find 4-5 animals and classify them into Prey, Predator, Carnivore, Omnivore, Herbivore.​
Sveta_85 [38]

Answer:

Koala, leopard, lion, cat, dog. Koala is an herbivore, leopard is a predator, lion is a predator, cat is a obligate carnivore, dogs are omnivores.

Explanation:

7 0
3 years ago
Brownian motion is due to:
My name is Ann [436]

Answer:

b

Explanation:

Brownian motion is the random movement of particles in a fluid due to their collisions with other atoms or molecules. ... Brownian motion takes its name from the Scottish botanist Robert Brown, who observed pollen grains moving randomly in water. He described the motion in 1827 but was unable to explain it.

8 0
3 years ago
In need help I need someone that is really good at physics
Aloiza [94]
10/70×360°
=51.4°

hope thus helps
5 0
4 years ago
Which object is probably composed of ice and dust?
Setler [38]

I think comets because they are small and they are composed of ice or water. Hope it helps :)

7 0
3 years ago
Read 2 more answers
Other questions:
  • In this graph, what is the displacement of the particle in the last teo seconds?
    9·1 answer
  • Some help please ,.......
    13·2 answers
  • Two electromagnets contain the same types of magnets
    8·1 answer
  • A 1.50-mm-diameter glass sphere has a charge of + 1.60 nC. What speed does an electron need to orbit the sphere 1.60 mm above th
    8·1 answer
  • 1. Given a list of atomic model descriptions:
    15·1 answer
  • The average Intensity of the electromagnetic field due to sunlight at the surface of the earth is 1400 W/m^2. Calculate the maxi
    12·1 answer
  • Which wave interaction is responsible for echoes?
    15·2 answers
  • A steer must eat at least 100 pounds of grain to gain less than 10 pounds of muscle tissue. This illustrates Group of answer cho
    8·1 answer
  • In any system, the _____ in the system remains constant, while the PE or KE may change.
    12·1 answer
  • Why does the current splits in parallel circuit and why does the voltage remains equal?​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!