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
Mademuasel [1]
3 years ago
12

Why car speed is not considered as car velocity?​

Physics
1 answer:
grigory [225]3 years ago
4 0

Answer:

Cause its scalar quantity

Explanation:

since speed does not take directions into consideration, it is considered to be a scalar quantity. On the other hand, the velocity of an object does not take into account direction, thus making it a vector quantity.

You might be interested in
6. What is the molar mass of H2O?
kotykmax [81]

Answer:

a) 18.015

Explanation:

I Googled it, hope this helped

7 0
3 years ago
Acceleration can occur when a car is moving at a constant speed. what must cause this acceleration?​
igomit [66]
The gasoline is charging the the car to move faster
6 0
2 years ago
The four wheels of a car are connected to the car's body by spring assemblies that let the wheels move up and down over bumps an
maksim [4K]

Answer:

The approximate  spring constant is  k =  55533.33 \  N/m

Explanation:

From the question we are told that

   The  mass of the person is  m =  68 \ kg

     The  dip of the car is  x =  1.2 \ cm  =  0.012 \ m

Generally according to hooks law  

        F  =  k * x

here the force F is the weight of the person which is mathematically represented as

         F =  m * g

=>    m * g  =  k * x

=>     k  =  \frac{m * g }{x }

=>    k  =  \frac{68 *  9.8}{ 0.012}

=>   k =  55533.33 \  N/m

8 0
3 years ago
A book is sitting on the dashboard of a car that is stopped at a traffic light as the car starts to move forward the book slides
Zina [86]

Answer:

The book remained in its state of rest before the car started to move forward as no direct force acted on it.

Explanation:

According to Newton's first law of motion, a body will continue in its present state of rest, or if it is in motion, will continue to move with uniform speed in a straight line unless aced upon by an external force. This tendency of a body to remain in its state of reset or uniform motion in a straight line is known as inertia and is directly proportional to the mass of the body. The more massive a body, the more inertia it possesses. Thus Newton's first law is also known as the law of inertia.

Considering the case of the book on the dashboard of a stationary car which suddenly starts to move. While the car is stopped at the traffic light, the dashboard where the book sits and the book are both at rest. When the car begins to move forward, the dashboard moves forward with it. However as the book is not a part of the car, no force is directly acting on it, so the book so it stays at rest due to its inertia.

Therefore, as the car is moving forward, the stationary book appears to move backward from the reference point of the car, sliding off the dashboard.

3 0
2 years ago
The lowest possible temperature in outer space is 3.13 K. What is the rms speed of hydrogen molecules at this temperature? (The
Umnica [9.8K]

Answer:

v_{rms} =196.59 m/s

Given:

Temperature, T = 3.13 K

molar mass of molecular hydrogen, m = 2.02 g/mol = 2.02\times 10^{-3}kg/mol

Solution:

To calculate the root mean squarer or rms speed of hydrogen molecule, we use the given formula:

v_{rms} = \sqrt{\frac{3TR}{m}}

where

R = rydberg's constant = 8.314 J/mol-K

Putting the values in the above formula:

v_{rms} = \sqrt{\frac{3\times 3.13\times 8.314}{2.02\times 10^{-3}}}

v_{rms} =196.59 m/s

5 0
3 years ago
Other questions:
  • Chemical testing of water
    12·1 answer
  • Please help on this physics question
    15·1 answer
  • Normally, atoms are electrically neutral because there are__.
    10·1 answer
  • In the video, you saw that models must sometimes be changed. why does that happen?
    5·2 answers
  • Technician A says that for best results, loosen the fastener immediately after spraying it with penetrating oil. Technician B sa
    13·1 answer
  • LEMME GET SOME HELO HERE PLEASE :))
    5·2 answers
  • Hashim, a 69-year-old, makes errors while performing tasks. He is unable to detect and correct the errors. He is also unable to
    14·1 answer
  • If the temperature of the solar surface is 5800 K and Wien's law for the peak wavelength of the spectrum of the Sun, assumed to
    7·1 answer
  • What happens when the speed of an object increase without change in height in the potential energy?
    14·1 answer
  • Anything that occupies space and has mass is called
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!