Write down Interpretive questions about action reaction forces.

Can 2 atoms have different numbers of neutrons and the same number of protons and be from different elements?

zimovet [89]

Two atoms with the same atomic number, but different mass numbers (same number of protons, different number of neutrons), are called isotopes, or isotopic nuclides. Having different numbers of neutrons changes the mass of these atoms, so isotopes have slight variations in their physical and chemical behavior.

7 0

3 years ago

You are going sledding with your friends, sliding down a snowy hill. Friction can't be ignored. Riding solo on your sled, you ha

Musya8 [376]

If you let a friend ride with you, increasing the mass does increase the net force on the system, but it also increases the inertia. a=Fnetm. Since both the net force and mass are increased they still cancel, leaving the acceleration the same.

<h3>Further explanation </h3>

Inertia is the tendancy of a moving object to keep moving in a straight line or of any object to resist a change in motion.

According to the picture below, we choose x-direction parallel to the inclined surface. Our positive direction is to the right. Hence, we will calculate the acceleration when riding solo first:

$\Sigma F_x = mg sin \theta - F_k = m a_x\\mg sin \theta - F_k = m a_x\\a_x = \frac{mg sin \theta - F_k }{m} ... (1)\\$

$\Sigma F_y = F_n - mg cos \theta = m a_y = 0\\F_n = mg cos \theta\\F_k = \mu_k F_n\\F_k = \mu_k mg cos \theta\\$

Put $(2)$ into $(1)$

$a = \frac{m g sin \theta - \mu_k m g cos \theta}{m} \\a = g sin \theta - \mu_k g cos \theta$

From the equation 3, we found that the acceleration does not depend on the mass of the object. Notice that:

$g$ is constant

$\theta$ is constant,

$\mu_k$ is constant

So that, $a$ is constant whatever the amount of the mass is

<h3>Learn more</h3>

Learn more about inertia brainly.com/question/720714

<h3>Answer details</h3>

Grade: 9

Subject: physics

Chapter: inertia

Keywords: inertia

5 0

3 years ago

Read 2 more answers

We know that charged objects with the same sign repel each other and objects charged with opposite signs attract. What happens w

anygoal [31]

A force will be exerted on a conductor and the conductor remains uncharged.

<u>Explanation:</u>

When a charged particle is brought close to associate dead conducting object, a force is occurring on the conducting object to maneuver the lepton to the alternative of the conductor.

There will be a separation of charge on the conducting object and also the charge is neutral. This is often thanks to the presence of charged insulating object close to it. Thus the conducting object is dead.

When we brought concerning the insulating object, there'll be a force of attraction between the dead conducting objects and also the insulating object. Thus, there's a force occurring on the conducting object.

5 0

4 years ago

Which of the following is true for balancing equations? A. There must be an equal number of atoms of each element on both sides

Zielflug [23.3K]

<h3><u>Answer</u>;</h3>

A. There must be an equal number of atoms of each element on both sides of the equation.

<h3><u>Explanation;</u></h3>

Chemical equations need to be balanced in order to satisfy the law of conservation of matter, which states that in a closed system matter is neither created nor destroyed.
The number of atoms of each element should be equal on either side of the equation, that is the reactants and product side.

3 0

3 years ago

describe how the volume of a floating object such as a cork can be found.fully describe please step by step.

Rama09 [41]

Answer:

Explanation:

Use Archimedes' principle, that states something of this nature: "The buoyant force acting on an object immersed in a fluid is equal to the weight of the fluid displaced"

Say, you take a cube of wood(for example) and place it in a bucket of water. Your cube is bound to sink, until, the upthrust force equals its weight.

Where does this upthrust come from?

As the cube sinks, it displaced some volume of water(if the bucket were full you would see water pouring out)

Archimedes simply stated that: Upthrust,

U=mg

Example: One way to measure the volume of any irregular object (in your case, a stone) is to submerge it completely under water and measure the change in the height of the water level. This change in the water level (let's say it goes from 50 mL to 65 mL) indicates that the stone has a volume of 15 mL.
Example:Subtract the first volume from the second volume to calculate the volume of the stone. For example, if you recorded 40 fluid ounces the first time, and 50 fluid ounces the second time, the stone volume is 10 fluid ounces.

7 0

3 years ago