PHYSICS HIGH SCHOOL

10 pointsTrue or False? Charging by friction happens when you rub two objects
together and PROTONS move from one object to the other.

Answers

Answer 1
Answer:

Answer:

true

Explanation:

yes because I said so

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Compare the time taken by the RC car to cover the same distance. Do some go faster or slower?

Answers

There isn;t enough given values to define and determine what is asked. But since
distance = speed / time, time = distance / speed


Calculate the acceleration of a boat that has been cruising at 15 m/s but speeds up to 45 m/s in about 6 seconds. Don’t forget your units, m/s2. In order to calculate the acceleration of the boat we first have to identify the suited formula for acceleration in this scenario. 

Hence, a = vf – vi / t. Vi = 15 m/s Vf = 45 m/s T = 6 seconds   

Solution: 
A = 45 m/s – 15m/s / 6s 
A = 5m/s^2

The shorter the time required to cover the same distance, the greater the speed of the RC car.

Further explanation

Acceleration is rate of change of velocity.

\large {\boxed {a = (v - u)/(t) } }

\large {\boxed {d = (v + u)/(2)~t } }

a = acceleration (m / s²)v = final velocity (m / s)

u = initial velocity (m / s)

t = time taken (s)

d = distance (m)

Let us now tackle the problem!

The formula for finding speed is:

\large {\boxed {v = (s)/(t)} }

v = velocity (m/s)

s = distance (m)

t = time taken (s)

From the formula above, it is clear that speed is inversely proportional to travel time. The shorter the time required to cover the same distance, the greater the speed of the RC car.

For example, let's look at the data in the table in the attachment. RC Car B has the greatest speed

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Answer details

Grade: High School

Subject: Physics

Chapter: Kinematics

Keywords: Velocity , Driver , Car , Deceleration , Acceleration , Obstacle , Speed , Time , Rate

In stars mor massive than the sun, fusion continues until the core is almost all....

Answers

In stars more massive than the sun, the core temperature is hotter, which allows for fusion of more complex elements.

Most of the fusion occurs in the core.

In stars more massive than the sun, fusion continues through Deuterium, Carbon, and finally reaching iron/nickel.

Up to this point, the fusion reaction was endothermic, which means that the energy expended to produce the fusion reaction was exceeded by the energy produced in the reaction.

Fusion past iron is exothermic, and therefore the star will be able to survive by fusing elements heavier than iron.

After the core is almost entirely iron, the star is no longer in the Main Sequence.

So, fusion in stars more massive than the sun continue fusing until the core is almost entirely iron.

Look at the Bohr model of the Helium atom. What part of the atom is represented by the letter Y? Question 12 options: A. nucleus B. neutron C. orbital D. electron E. proton

Answers

Answer : The correct option is, (B) neutron

Explanation :

As we know that the atomic number of helium atom is 2. That means it has 2 number protons, 2 number of electrons and 2 number of neutrons.

There are three subatomic particles. Protons, neutrons and electrons. The subatomic particle proton which is positively charged and neutron which is neutral are located in the center of the nucleus and the subatomic particle electrons which is negatively charged are located outside the nucleus.

In Bhor atomic of the helium atom,

The letter X represent the electrons.

The letter Y represent the neutrons.

The letter Z represent the protons.

The letter W represent the nucleus.

Hence, the correct option is, (B) neutrons.

The Answer that your looking for is NEUTRON

hope this helps you :)

How can a diving board illustrate the newton's thrid law

Answers

*Just to explain, Newton's Third Law, which is also commonly called the "Law of Action and Reaction" states that force come in pairs, meaning that, for example, if I were to push against the wall, thus exerting a force on the wall, Newton theorizes that the wall exerts a force of equal magnitude right back onto me. *This is thought of more practically when you think of the effects of these forces: I push against the wall, but the wall doesn't move, so the wall is thus pushing back onto me, preventing me from going straight through this wall. *If I were to push onto, say, a sheet of aluminum foil, it would obviously break, but not because it is not exerting a force back, but because the aluminum foil is not strong enough to match my force, so it allows me to go straight through it mostly.

According to the periodic table, the average atomic mass of helium is A) 2 amu. B) 2.0026 amu. C) 4.0026 amu. D) 6.0026 amu.

Answers

Answer:

C) 4.0026 amu

Explanation:

Helium (He) is the 2nd element on the Periodic Table.

It's neutral atom has 2 protons and 2 electrons.

It is in the 1st period and the 18th row.

It is also a Noble gas.

a man exerts 3000.00N of force to push a car 35.00 meters in 90.00 seconds.... 1. what is the work done 2.what is the power generated

Answers

1).  Work = (force) x (distance)

Work = (3,000 newtons) x (35 meters) = 105,000 newton-meters = 105,000 joules

2).  Power = (work) / (time)

Power = (105,000 joules) / (90 seconds)
                                         = 1,166-2/3 joules per second = 1,166 and 2/3 watts .

Note:
That's no ordinary man.
1,166 watts is the same as roughly 1.6 horsepower.
Not too many people can sustain 1 horsepower or more for 90 seconds.
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