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
Anna11 [10]
3 years ago
13

A roller coaster car is loaded with passengers and has a mass of 500 kg along with a speed of 18 meters/second at the dip. The r

adius of curvature of the track at the bottom point of the dip is 12 meters (gravity = 9.8 meters/second2). What force is exerted on the roller coaster car by the track at the bottom of the dip?
Physics
2 answers:
GenaCL600 [577]3 years ago
7 0
The roller coaster is moving in a circular path, so the force that must be computed is the centripetal force. The centripetal force is the force acting on an object undergoing circular motion and is directed towards the center of the circular path. This is computed using:
F = mv²/r
F = (500 * 18²) / 12
F = 13,500 N

Now, at the bottom of the track, the track is also supporting the weight of the car and its passengers, which is:
W = mg
W = 500 * 9.81
W = 4,905 N

The total reactive force exerted by the track to counter the centripetal force and the weight of the car is:
F = 13,500 + 4,905
F = 18,405 Newtons
Pachacha [2.7K]3 years ago
6 0

the answer is D on Plato.

You might be interested in
Which of the following describes gamma rays?
Anarel [89]

Answer: short wavelength, high frequency

Explanation:

Gamma rays are highly energetic electromagnetic waves. High energy implies high frequency.

E = h ν

h is the Planck's constant, ν is the frequency.

For electromagnetic radiation, frequency is inversely proportional to wavelength. Thus, gamma rays have high frequency but short wavelength.

The frequency of gamma rays is greater than 10¹⁹ Hz and wavelength is less 10⁻¹² m.

3 0
3 years ago
Read 2 more answers
. For transverse waves, compare the direction that the particles move to
Elza [17]

Answer:

The particles in transverse waves move perpendicular to the direction of how the wave moves.

Explanation:

5 0
3 years ago
A certain mountain road is inclined 3.1° with respect to the horizon. what is the change in altitude of the car as a result of i
BigorU [14]
Given:\\ \alpha =3.1^\circ\\l=2.90km\\\\Find:\\h=?\\\\Solution:\\\\h=l\sin\alpha \\\\h=2.90km\cdot \sin 3.1^\circ=2.90km\cdot 0.054=0,1566km=156.6m
7 0
3 years ago
The diagram is a real world example of the first and second laws of thermodynamics. It shows how thermal energy is used to gener
Dmitriy789 [7]

Answer:

First law: kinetic energy is used to turn an electric generator

Second law: some thermal energy is lost to the environment as it travels through the system

Explanation:

The first law of thermodynamics is known as the law of conservation of energy. It states that energy can neither be created nor destroyed but can only be transferred or changed from one form to another. When thermal energy is used to generate electricity, the kinetic energy of the steam is used to turn the electric generator (thereby producing electrical energy).

The second law of thermodynamics states that energy transfer or transformation leads to an increase in entropy resulting in the loss of energy. This law also states that as energy is transferred or transformed, some is lost in a form that is unusable. When thermal energy is used to generate electricity, some of the thermal energy is lost to the environment as it travels through the system.

7 0
3 years ago
Read 2 more answers
Why do high and low tides happen 1 hour later each day? just answer please and it is a written response
8_murik_8 [283]
With each<span> passing </span>day<span>, the </span>high tides occur<span> about an </span>hour later<span>. The moon rises about an </span>hour later each day<span>, too (actually, 54 minutes </span>later<span>). Since the moon pulls up the </span>tides<span>, these two delays are connected. As the earth rotates through </span>one day<span>, the moon moves in its orbit.</span>
6 0
3 years ago
Other questions:
  • What does a taxonomist do?
    11·2 answers
  • Please need help on this
    6·2 answers
  • In the formula for water (H20), what does the lack of a subscript after the 0 indicate?
    10·2 answers
  • What if a wave reaches a type of
    7·2 answers
  • A model of a helicopter rotor has four blades, each of length 3.0 m from the central shaft to the blade tip. The model is rotate
    5·1 answer
  • Atmospheric pressure at sea level has a value of 100kpa. The density of sea water is 1020kg/m-3. At which depth in the sea would
    5·1 answer
  • A student is flying west on a school trip from Winnipeg to Calgary in a jet that has an air velocity of 792 km/h.The direction t
    5·1 answer
  • Microwaves have a _________wavelength and _________frequency than radio waves.
    12·2 answers
  • If you divide a speed in miles per minute by 60, you get the same speed
    14·1 answer
  • 4. What is the amplitude of the waves shown in the diagram below?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!