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
tatyana61 [14]
3 years ago
5

1. ____________is defined as the distance an object travels per unit of time.

Physics
1 answer:
charle [14.2K]3 years ago
7 0

Answer:

1) Speed

2) X ( maybe acceleration)

3) Motion

4) Vector

5) Distance

6) Scaler

7) Second

8) Velocity

You might be interested in
Which diagram best represents the gravitational forces, F, be-<br> tween a satellite, S, and Earth?
dangina [55]

Answer:

Diagram (3).

Explanation:

N3L states that if object A exerts a force on object B, then object B must exert a force of equal magnitude and opposite direction back on object A (F_{A} = -F_{B}).

3 0
3 years ago
8. A 740 kg car traveling 19 m/s comes to a complete stop in 2.0 s. What is the force exerted on the car during this stop?
zaharov [31]
Force = mass * acceleration 

acceleration = change_in_velocity / time

so:

force = 740 kg * (19 m/s - 0 m/s) / 2.0 s
= 740 * 19 / 2 kg m per second^{2}
= 7030 kg m per second^{2}
= 7030 newtons of force
6 0
3 years ago
Read 2 more answers
If a certain mass of mercury has a volume of 0.002 m3 at a temperature of 20°C, what will be the volume at 50°C?
mel-nik [20]

As per the question the volume of mercury  is given as 0.002 m^3 at 20 degree Celsius.

We are asked to calculate the volume of the mercury at 50 degree Celsius.

This problem is based on thermal expansion of matter.

Let us consider the initial and final volume of the mercury is denoted as -

                                  v_{1} \ and\ v_{2}

Let the initial and final temperature of the mercury is denoted as -

                                                                    T_{1}\ and \ T_{2}

As per question

v_{1} =0.002 m^3                v_{2} =?

T_{1} =20^0 C                      T_{2} =50^0 C

The change in temperature is

                                             T_{2} -T_{1}

                                         = 50^0 C -20^0 C

                                               = 30^0 C

Mercury is a fluid.So we have to apply volume expansion of liquid .

The coefficient of of volume expansion of mercury [ \gamma ] at 20 degree Celsius is 0.00018 per centigrade.

As per volume expansion of liquid,

                                       V_{T} = v_{1} [1 +\gamma [T_{2} -T_{1} ]]

Here V_{T} is the volume at T degree Celsius.

Hence volume at 50 degree Celsius is calculated as-

                               v_{2} =v_{1} [1+\gamma[50-30]]

                                       = 0.002[1+0.00018*30]

                                       =0.0020108m^3  [ans]

As per the options given in the question ,option A is close to the calculated value. So option A is right.


5 0
3 years ago
Read 2 more answers
What are the importance of wedge? <br>​
FromTheMoon [43]

A wedge is a machine and it is used for separating bodies.

<h3 /><h3>The Wedge as a Machine</h3>

The wedge is a combination of two inclined planes. When the wedge is driven into a body by an effort force, a much larger force will be exerted to each side by the wedge surfaces.

What are the importance of wedge?

A wedge is used to separate bodies which are held together by large forces example of this scenario is splitting of timber. A wedge is a machine and the example of wedge - type of machine are;

  • Axes
  • Chisel
  • Knives
  • Cutting tools

Note that a thin wedge has a higher mechanical advantage than a short thick one.

Therefore, a wedge is a machine and it is used for separating bodies.

Learn more about machine here: brainly.com/question/2337612

#SPJ1

3 0
2 years ago
What is the difference between an open and closed circuit?
MrRa [10]

Answer:

An open circuit does not go on for an infinite time, but the closed circuit does.

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • If one replaces the conducting cube with one that has positive charge carriers, in what direction does the induced electric fiel
    14·1 answer
  • What type of energy system (open, closed or isolated) is represented by the picture and why?
    5·1 answer
  • During which type of change can an atom of carbon become an atom of nitrogen?
    9·2 answers
  • How is a light wave likely to react when hitting a shiny opaque object?
    6·1 answer
  • The law of universal gravitation
    5·1 answer
  • An electromagnetic generator consists of a coil that has 100 turns of wire, has an area of 400 cm2, and rotates at 60 rev/ s in
    15·1 answer
  • A block attached to an ideal spring oscillates horizontally with a frequency of 4.0 Hz and amplitude of
    5·1 answer
  • Agatha the snake is 50 centimeters long.3 years from now she will be 152 centimeters long and fully grown. If Agatha grows at co
    9·1 answer
  • How can electricity produce heat and light? ​
    13·2 answers
  • Edwin Hubble discovered that:
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!