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
ivolga24 [154]
3 years ago
14

5.An ice skater pushes against a wall with a force of 59 N. Ignoring friction, if the ice skater has

Physics
1 answer:
natali 33 [55]3 years ago
5 0

Answer:

<em>Answer: (A) 0.75 m/s^2</em>

Explanation:

The Second Newton's law states that an object acquires acceleration when an external unbalanced net force is applied to it.

That acceleration is proportional to the net force and inversely proportional to the mass of the object.

It can be expressed with the formula:

\displaystyle a=\frac{F_n}{m}

Where

Fn = Net force

m  = mass

The ice skater pushes against a wall with a force of 59 N. The wall returns the force and the skater now has a net force of Fn=59 N that makes him accelerate. Being m=79 kg the mass of the skater, the acceleration is:

\displaystyle a=\frac{59}{79}

a = 0.75\ m/s^2

Answer: (A) 0.75 m/s^2

You might be interested in
Which organelle is the powerhouse of the cell, the site of cellular respiration? A) 2 - nucleus B) 5 - endoplasmic reticulum C)
Paladinen [302]
D) 9- mitochondria
Hope this helps :D
7 0
3 years ago
The Kinetic Theory of Matter states that the particles that make up all matter are in perpetual motion. We know that a solid can
evablogger [386]
<span>1) Explain how the particles that make up solid matter can be in perpetual motion if they do not change position.  Answer: they do not mov, just vibrate a bit more and move further apart. And as a result solid expand a bit.

</span><span>2) How the Kinetic Theory of Matter defines heat. Answer: Heat is a form of energy that particles convert into kinetic energy. Adding a heat energy increases the kinetic energy of particles. This means that as a substance is heated - the particles vibrate faster and move further apart. </span>
4 0
3 years ago
Read 2 more answers
Which phrase provides the best context clue for the meaning of the word tabulate?​
Paul [167]

Answer:

round and count

Explanation:

means arrange, order, organize, etc

6 0
3 years ago
Read 2 more answers
Please help me
Helen [10]

Answer:

15 protons and 18 electrons

General Formulas and Concepts:

<u>Chemistry</u>

  • Reading a Periodic Table
  • Element Number
  • Neutral Atoms
  • Ions

Explanation:

We are given the element P. P is 15 on the Periodic Table, meaning it has 15 protons and 15 electrons (all elements are in neutral form).

P³⁻ ion means the element now has a negative charge of 3. We know protons have a positive charge and electrons have a negative charge. 3- means we will have more electrons than protons.

Therefore, P³⁻ would have 15 protons and <em>18</em> electrons:

15 (+) + 18 (-) = 3 (-)

7 0
3 years ago
Read 2 more answers
A lead bar 12 cm long, 2 cm wide, and 2 cm talk has a density of 11.3g/cm3. If you cut the bar in half, what is the density of o
VMariaS [17]

Answer:

The density of one halves  11.3 g / cm cube

Explanation:

Density remain same because cutting the bar in half , mass and volume will decrease to half so density will not change .

density = \frac{mass}{volume}

5 0
3 years ago
Other questions:
  • Simple question..<br><br>Is speed the same as velocity?​
    7·2 answers
  • Identify the following physical quantities as scalars or vectors.
    5·2 answers
  • g A coil formed by wrapping 50 turns of wire in the shape of a square is positioned in a magnetic field so that the normal to th
    5·1 answer
  • 3.88 milligrams is equal to how many centigrams?
    10·2 answers
  • What is the most important ability of plants? To photosynthesis To have a cell wall To produce Carbon dioxide
    12·1 answer
  • When the pressure on a gas increases,what does the volume do?
    13·2 answers
  • Put the balloon near (BUT NOT TOUCHING) the wall. Leave about as much space as the width of your pinky finger between the balloo
    11·1 answer
  • Need help with a physics question.
    11·1 answer
  • If you have a circuit consisting of 4 resistors in series and and the total voltage across them is 17v ,what is the voltage acro
    7·1 answer
  • Suppose that Hubble's constant were H0 = 51 km/s/Mly (which is not its actual value). What would the approximate age of the univ
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!