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
VladimirAG [237]
4 years ago
15

If you designed a rollercoaster, how might you design it? Would you have friction?

Physics
1 answer:
kvasek [131]4 years ago
4 0
Yes, because you would need friction to slow down the rollercoaster to a stop. 
You might be interested in
An inductor carries a current of 1.6 a, and the magnetic energy stored in the inductor is 0.0020 j. what is the inductance
faltersainse [42]
Energy stored= Li^2/2
Therefore L=2(E.S)/i^2
= 0.0013
8 0
3 years ago
Solve the problem. Unless stated otherwise, assume that the projectile flight is ideal, that the launch angle is measured from t
kirill115 [55]

Answer:

d = 185.26 meters

Explanation:

It is given that,

Launching angle of the projectile, \theta=26^{\circ}

Initial speed of the projectile, u = 48 m/s

Let at distance d the projectile hits the ground from the launch point. It is equal to range of the projectile. Its formula is given by :

d=\dfrac{u^2\ sin2\theta}{g}

Substituting all the values in above formula. So, we get :

d=\dfrac{(48)^2\ sin2(26)}{9.8}

d = 185.26 meters

So, the distance between the launch point and the point where it hits is 185.26 meters. Hence, this is the required solution.

3 0
3 years ago
What is the wavelength of a wave that has a speed of 160 m/s and a period of 3.7 ms?
Elza [17]

Answer:

160m/s

Explanation:

The speed of a wave is related to its frequency and wavelength, according to this equation:

v=f ×λ

3 0
2 years ago
What simple machines combine to make a shovel which is a compound
IRINA_888 [86]
B) lever and pulley is the answer
6 0
3 years ago
Help help help help help
Dima020 [189]
743 divides by djhd fjhfjfjsa 3883
7 0
3 years ago
Other questions:
  • Two 20 ohm resistors are connected in parallel and two 10 ohm resistors are connected in parallel. If these two combinations are
    8·1 answer
  • A bungee jumped of mass m jumps off a brodge. Assume that the bungee cord behaves like an ideal spring of srping constant k when
    7·1 answer
  • 5280 feet to meters
    9·1 answer
  • Why is it important to know the direction of the force applied to a moving object and the direction in which the object is movin
    10·2 answers
  • How much heat is required to raise the temperature of 0.25 kg of water from 20°C to 30°C
    15·1 answer
  • 46) The rapid change of an electric field induces
    9·1 answer
  • Un auto si muove lungo una strada rettilinea​
    9·1 answer
  • A materiel that allows electricity to flow easily is called an
    11·1 answer
  • How much heat is given off when 210.0g of water at 0 degrees freezes into ice?
    15·1 answer
  • A skier is standing on a horizontal patch of snow. She is holding onto a horizontal tow rope, which is about to pull her forward
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!