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
mr_godi [17]
3 years ago
12

A billiard ball bangs against a side bumper, giving the ball a speed of 5 m/s. If the

Physics
1 answer:
RoseWind [281]3 years ago
7 0

Answer:

1.875 joules

Explanation:

K.E=1/2 mv²

K.E=1/2 0.15×5²

K.E=1.875 joules

You might be interested in
Are stars really planets?
Tems11 [23]
Stars are not really planets because they are far, far away from our solar system.
Hope this is helpful~
8 0
3 years ago
Read 2 more answers
Think of an example of a chemical change that some people might think is NOT a chemical change. Explain why it is.​
AlekseyPX

Answer:

Digesting food

Explanation:

I have people who think that its not true but it is

Hope this helped

7 0
3 years ago
Describe how different types of motion are represented by distance-time graphs and velocity-time graphs.
eduard

Answer:

non-accelerated movement

velocity versus time  a horizontal straight line.

distance versus time  gives a horizontal straight line.

accelerated motion

graph of velocity versus time s an inclined line and the slope

graph of distance versus time is a parabola of the form

Explanation:

In kinematics there are two types of steely and non-accelerated movements

In a  the velocity of the body is constant therefore a speed hook against time gives a horizontal straight line.

A graph of distance versus time is a straight line whose slope is the velocity of the body

          x = v t

In an accelerated motion the velocity changes linearly with time, so a graph of velocity versus time is an inclined line and the slope is the value of the acceleration of the body

         v = v₀ + a t

A graph of distance versus time is a parabola of the form

         x =v₀ t + ½ a t²

4 0
3 years ago
Atom X contains seven protons and seven neutrons. atom Z contains seven protons and eight neutrons. which of the following state
stiks02 [169]

Answer:

The correct answer is option A: they are isotopes.

Explanation:

From atom X we know that the number of protons is 7 and the number of neutrons is 7 and from atom Z we know that the number of protons is 7 and the number of neutrons is 8.

Since the number of protons of atom X and atom Z is the same, we have that atom X and atom Z is the same element. The difference in the number of neutrons tells us that atom X and atom Z are isotopes. Remember that an isotope is one element that has atoms with different numbers of neutrons.            

The mass number is given by:              

A = p + n

Where <em>n</em> is the number of neutrons and <em>p </em>is the number of protons.

For atom X and atom Z we have:

A_{x} = 7 + 7 = 14

A_{z} = 7 + 8 = 15

Hence, they have a different mass number.  

We know that the element with 7 protons is nitrogen. The first isotope is ^{14}_{7}N and the second isotope is ^{15}_{7}N. Both isotopes are stables (they are not radioactive).  

Therefore, the correct answer is option A: they are isotopes.

I hope it helps you!                                                          

3 0
3 years ago
Which situation is an example of transferring heat by means of convection?
fgiga [73]

A situation that involves the transfer of heat by means of convection must involve the exchange of fluid currents such as land and sea breezes.

Heat transfer by convection is a method of heat transfer by which heat is transferred between two bodies through through currents of moving fluids or gases.

The following are examples of heat transfer by convection;

  • land breezes cooling the sea at night
  • sea breezes cooling the land during the day
  • boiling of water
  • circulation of blood, etc

Thus, a situation that involves the transfer of heat by means of convection must involve the exchange of fluid currents such as land and sea breezes.

Learn more here:brainly.com/question/17394233

4 0
3 years ago
Other questions:
  • What is the power of a light bulb that has<br> a resistance of 190 ohms in a 120 v circuit?
    12·2 answers
  • A bathtub has 62.7 kg of water at 31.0
    6·1 answer
  • 3. An engine’s fuel is heated to 2,000 K and the surrounding air is 300 K. Calculate the ideal efficiency of the engine. Hint: T
    9·1 answer
  • The process that converts liquid to gas is melting true or false
    8·1 answer
  • The four fundamental types of organic molecules are nucleic acids, proteins, lipids, and ________.
    8·2 answers
  • The charger for your electronic devices is a transformer. Suppose a 60 Hz outlet voltage of 120 V needs to be reduced to a devic
    10·1 answer
  • The strongest intermolecular forces of attraction exist in a liquid whose heat of vaporization is
    7·1 answer
  • List 4 forms of energy
    11·2 answers
  • In a movie production, a stunt person must leap from a balcony of one building to a balcony 3.0 m lower on another building. If
    11·1 answer
  • Question 2
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!