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
vitfil [10]
3 years ago
7

What is the kinetic energy of a 144 gram baseball moving at a velocity of 38.7 meters per second?

Physics
1 answer:
gulaghasi [49]3 years ago
8 0

Answer:

The kinetic energy of the baseball is  107.83 J

Explanation:

Given;

mass of the baseball, m = 144 g = 0.144 kg

velocity of the baseball, v = 38.7 m/s

The kinetic energy of the baseball is given by;

K.E = ¹/₂mv²

where;

m is mass of the object

v is speed of the object

K.E = ¹/₂(0.144)(38.7)²

K.E = 107.83 J

Therefore, the kinetic energy of the baseball is  107.83 J

You might be interested in
What happens to the heat energy the particles receive during convection and conduction?
kherson [118]
The particals speed up
4 0
3 years ago
Analyze how friction can be both a positive and negative aspect on our lives
denpristay [2]
Positive - Friction allows us to create heat in a desperate situation, like being lost in the woods. If we didn't have friction, we would probably freeze to death.
Negative - Friction can also cause unwanted fires, such as forest fires. If friction didn't exist, we wouldn't have these.
8 0
3 years ago
Which of the following forms matter?<br> A. Proteins<br> B.atoms<br> C.cells<br> D. DNA
Artemon [7]

Answer:b) atoms

Explanation:which are in turn made up of protons, neutrons and electrons

8 0
2 years ago
Read 2 more answers
the Space Program has benefitted people in everyday life. Describe two ways in which people can benefit
ycow [4]
So we can know what is in space maybe weird or interesting stuff 

8 0
3 years ago
The vector product of vectors A⃗ and B⃗ has magnitude 12.0 m2 and is in the +z-direction.Vector A⃗ has magnitude 4.0 m and is in
g100num [7]

Answer:

θ=180°

Explanation:

The problem says that the vector product of A and B is in the +z-direction, and that the vector A is in the -x-direction. Since vector B has no x-component, and is perpendicular to the z-axis (as A and B are both perpendicular to their vector product), vector B has to be in the y-axis.

Using the right hand rule for vector product, we can test the two possible cases:

  • If vector B is in the +y-axis, the product AxB should be in the -z-axis. Since it is in the +z-axis, this is not correct.

  • If vector B is in the -y-axis, the product AxB should be in the +z-axis. This is the correct option.

Now, the problem says that the angle θ is measured from the +y-direction to the +z-direction. This means that the -y-direction has an angle of 180° (half turn).

8 0
3 years ago
Other questions:
  • Two points, point A and point B, are situated above a current-carrying wire. Point B is located at a distance R from the wire, w
    11·1 answer
  • Vector B has x, y, and z components of 2.2, 6.6, and 5.5 units, respectively.
    11·1 answer
  • A real heat engine operates between temperatures Tc and Th. During a certain time, an amount Qc of heat is released to the cold
    5·1 answer
  • PLZ HELP WILL GIVE BRAINIEST 15 POINTS!!!
    15·2 answers
  • Sam is walking through the park. He hears a police car coming down the street toward him. What happens to the sound of the siren
    13·2 answers
  • At a distance r1 from a point charge, the magnitude of the electric field created by the charge is 226 N/C. At a distance r2 fro
    5·2 answers
  • What is the primary difference between the states of matter? color of the substance mass of the substance number of atoms in the
    5·2 answers
  • A circuit has a current of 2.4 A. The voltage is increased to 4 times its original value, while the resistance stays the same.
    12·2 answers
  • Can y'all help me please?
    11·2 answers
  • PLEEEEASE HELP ME PLEASE WILL GIVE BRAINLIEST
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!