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
never [62]
2 years ago
7

Three cars (car F, car G, and car H) are moving with the same velocity, and slam on the brakes. The most massive car is car F, a

nd the least massive is car H. Assuming all three cars have identical tires, which car travels the longest distance to skid to a stop
Physics
1 answer:
Fantom [35]2 years ago
4 0

Answer:

depends on how  they are made and what there made with

Explanation:

i know that the larger one might be the one to stop and skidd but so would the little one because it can go faster than the larger on because it has less mass and it will speed fast and then slowly slow down

You might be interested in
The element in an incandescent light bulb that releases light energy is
Leviafan [203]
A thin tungsten filament
5 0
3 years ago
Show that rigid body rotation near the Galactic center is consistent with a spherically symmetric mass distribution of constant
irakobra [83]

To solve this problem we will use the concepts related to gravitational acceleration and centripetal acceleration. The equality between these two forces that maintains the balance will allow to determine how the rigid body is consistent with a spherically symmetric mass distribution of constant density. Let's start with the gravitational acceleration of the Star, which is

a_g = \frac{GM}{R^2}

Here

M = \text{Mass inside the Orbit of the star}

R = \text{Orbital radius}

G = \text{Universal Gravitational Constant}

Mass inside the orbit in terms of Volume and Density is

M =V \rho

Where,

V = Volume

\rho =Density

Now considering the volume of the star as a Sphere we have

V = \frac{4}{3} \pi R^3

Replacing at the previous equation we have,

M = (\frac{4}{3}\pi R^3)\rho

Now replacing the mass at the gravitational acceleration formula we have that

a_g = \frac{G}{R^2}(\frac{4}{3}\pi R^3)\rho

a_g = \frac{4}{3} G\pi R\rho

For a rotating star, the centripetal acceleration is caused by this gravitational acceleration.  So centripetal acceleration of the star is

a_c = \frac{4}{3} G\pi R\rho

At the same time the general expression for the centripetal acceleration is

a_c = \frac{\Theta^2}{R}

Where \Theta is the orbital velocity

Using this expression in the left hand side of the equation we have that

\frac{\Theta^2}{R} = \frac{4}{3}G\pi \rho R^2

\Theta = (\frac{4}{3}G\pi \rho R^2)^{1/2}

\Theta = (\frac{4}{3}G\pi \rho)^{1/2}R

Considering the constant values we have that

\Theta = \text{Constant} \times R

\Theta \propto R

As the orbital velocity is proportional to the orbital radius, it shows the rigid body rotation of stars near the galactic center.

So the rigid-body rotation near the galactic center is consistent with a spherically symmetric mass distribution of constant density

6 0
3 years ago
3) A dock worker pushes a 72 kg crate up a 2.0 m high,
Vlad [161]

Work done on the crate is 1411.2 J

Explanation:

Work done is defined as the product of force and the distance moved by the object. The unit of work done is in joules and denoted by the symbol J.

                                     Work done = F * d

where F represents the force and d represents the distance moved by the object.

mass = 72 kg , distance moved by the object is given by 2.0 m

Force F = mass * gravity = 72 * 9.8

             = 705.6 N =706 N.

Work done = 706 * 2.0 = 1412 J.

                   

7 0
3 years ago
A 30-kg child rides a 20-kg bicycle together,the child and the bicycle have a momentum of 110 kg•m/s. What is the velocity of th
Korolek [52]
What are the options for this?
3 0
3 years ago
Why do scientist use models to study atoms
Vedmedyk [2.9K]
Scientists use models to study atoms, Because atoms are very tiny, and almost impossible to cut open and look inside.. And the center of an atom is the nucleus and that is ever smaller.
6 0
3 years ago
Other questions:
  • Which two statements are true about energy transformations?
    5·1 answer
  • if an object starts at rest and moves 60 meters north along a straight line in 2 seconds, what is the average velocity?
    5·2 answers
  • Question 9(Multiple Choice Worth 2 points)
    5·1 answer
  • 5. Lady Gaga needed someone to buy more meat for her meat dress. The famous
    12·1 answer
  • Relationship between prism and lens ​
    13·1 answer
  • A white billiard ball with mass mw = 1.43 kg is moving directly to the right with a speed of v = 3.39 m/s and collides elastical
    7·1 answer
  • Ventajas y desventajas de la energía eléctrica??
    6·2 answers
  • Iron cutting scissors have short edges whereas cloth cutting scissors have long edges why​
    9·1 answer
  • Im pregnaunt at the age 12 what shall i do now ??<br><br> i do live my belly bump&lt;3
    15·2 answers
  • Progress of science has not caused any ill effect true or false?​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!