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
frosja888 [35]
3 years ago
12

A roller coaster car starts at a height of 90 M at Point a and is moving at a speed of 20 m per second on a later Hill at Point

C assuming friction does not affect the motion of the car what is its height at Point C
Physics
2 answers:
ankoles [38]3 years ago
7 0
Hi there!

The answer you are looking for.....



20.4 m!





Hope this helps you!

Have a great day!
valentina_108 [34]3 years ago
3 0
The answer is 20.4m in height. You can use the kinematics equation Vf^2=V0^2+2ad  Therefore we have solving for d or height, we get d=Vf^2/2g
(20m/s)^2/(2*9.8m/s^2)=20.4m
You might be interested in
- Which of the following does not move as a transverse wave?
Sedaia [141]

Answer:

- Which of the following does not move as a transverse wave?

<em>B. sound waves</em>

because sound waves are longitudinal waves having compressions and rare factions.

Which of these effects describes the change in pitch we hear

moving motorbike goes past?

<em>D</em><em>.</em><em> </em><em>Doppler</em><em> </em><em>eff</em><em>ect</em>

Doppler effect is the phenomenon where there is apparent change in frequency (pitch) and wavelength of a wave due to relative motion of the sound source.

Which of the following does not make use of total internal reflection.

<em>B</em><em>.</em><em> </em><em>Endos</em><em>cop</em><em>e</em>

Endoscope doesn't use total internal reflection since no refraction takes place.

6 0
2 years ago
Which of the following is one way of preventing poisoning?
Iteru [2.4K]
I think its number 1

7 0
2 years ago
Help ME QUICK PLEASE QUESTION 2 AND 4 PLEASE 58 POINTS
monitta

Answer:

For number 4: A vector pointing to the right with a magnitude of 2.0

Explanation:

Very simple- just subtract 6-2

I am not sure how to do #2- sorry!

6 0
3 years ago
The earth rotates once per day about an axis passing through the north and south poles, an axis that is perpendicular to the pla
Rama09 [41]
Please elaborate more on your question so I can help you
7 0
2 years ago
Please help me guys never mind the calculations ​
vlada-n [284]

The shape is connected in parallel so;

5.1) Ans;

\frac{1}{R}  =  \frac{1}{R1} +  \frac{1}{R2}   \\  \frac{1}{R}  =  \frac{1}{2}  +  \frac{1}{3}  \\  \frac{1}{R}  =  \frac{3 + 2}{6}  =  \frac{5}{6}  \\ R =  \frac{6}{5}  = 1.2 \:  \: ohm

5.2) Ans;

\frac{1}{R}  =  \frac{1}{R1} +  \frac{1}{R2}   \\  \frac{1}{R}  =  \frac{1}{8}  +  \frac{1}{10}  \\  \frac{1}{R}  =  \frac{5 + 4}{40}  =  \frac{9}{40}  \\ R =  \frac{40}{9}  = 4.4 \:  \: ohm

I hope I helped you^_^

7 0
2 years ago
Other questions:
  • What is an cell described in
    5·1 answer
  • A water wave has a frequency of 2 hertz and a wavelength fo 5 meters. Calculate is speed
    7·1 answer
  • your friend asks you for a glass of water and you bring her 5 milimeter of water? is this more or less than what she was probabl
    5·1 answer
  • Myoncedyret
    13·1 answer
  • In a system, when energy is transformed from one form to another
    13·2 answers
  • What is the net force needed to lift a full grocery sack weighing 210N uniformly?
    11·1 answer
  • A 180 meter long train, travelling at a constant speed, is passing a car driving on an adjacent lane at a speed of 72 km/h. Know
    5·1 answer
  • What is the stopping distance if the car is initially traveling at speed 5.0v? assume that the acceleration due to the braking i
    8·1 answer
  • Mechanical waves travel faster through _______ than through _______.
    14·2 answers
  • A generator coil is rotated one quarter of a full revolution, from θ = 0° to θ = 90°,
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!