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3 years ago

1. Which of the following best describes a neutral solid object that is charged by conduction?

Physics

1 answer:

trapecia [35]3 years ago

6 0

Answer:

C: The electrons in the neutral object transfer onto a positively charged object.

Explanation:

In conduction, when we charge one object with another, both of them will now have the same type of charge. Thus, in conduction, a positive object is used to charge a neutral object, then it means that both objects become charged positively charged. Electrons are positive charges.

Thus electrons in the neutral object are transferred onto a positively charged object and so option C is right.

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If a substance has a pH of 10 -11, it is considered a ...

Mrac [35]

Answer:

Base

Explanation:

anything with a pH between 0-6 is an acid. pH of 7 means neutral. 8-14 means it is a base

hope I helped :)

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4 years ago

A 20×10⁹charge is moved between two points A andB that are 30mm apart and have an electric potential difference of 600v between

Alona [7]

Answer:

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Explanation:

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3 years ago

A crane lifts up two boxes.<br><br> Which free body diagram shows the forces acting on block A?

Temka [501]

Answer:

The 3rd graph

Explanation:

A free body diagram is a diagram which shows all the forces acting on an object.

The problem asks us to find the free body diagram of block A, so we must find all the forces acting on block A.

We have 3 forces acting on block A in total:

- The force of gravity (its weight), which pushes the block downward (in the diagram, it is the force represented with $F_{gA}$

- The tension in the rope 1, which pulls block A upwards: this force is represented with $F_{T1}$

- The tension in the rope 2, due to the weight of block 2, which pulls block A downwards: this force is represented with $F_{T2}$

Based on the direction of these 3 forces, the correct diagram is the 3rd one.

7 0

3 years ago

Read 2 more answers

Two drag cars race. They line up at the starting line at rest. The winning car accelerates at a constant rate a and reaches the

Mila [183]

Answer: $d=\frac{v^2}{8a}$

Explanation:

Given

winning car accelerates with a and its final velocity is v

considering they both start from rest

time taken by winning car is

v=u+at

where u=initial velocity

a=acceleration

t=time

$v=at$

$t=\frac{v}{a}$

Now loosing car is accelerating with $\frac{a}{4}$

Distance traveled by loosing car in time t

$s_1=ut+\frac{at^2}{2\cdot 4}$

$s_1=0+\frac{a}{8}\times (\frac{v}{a})^2$

$s_1=\frac{v^2}{8a}$

Thus distance d traveled by loosing car is given by $d=\frac{v^2}{8a}$

5 0

4 years ago

3. If an undetected air bubble was trapped inside the gas collection tube, how would this affect your calculated percent yield?

soldi70 [24.7K]

When an air bubble gets trapped inside the gas collection tube, then the gas that is actually collected becomes impure. This will definitely give an inaccurate result and the calculated percentage yield will be wrong. I hope that this is the answer that you were looking for and it has come to your help.

5 0

3 years ago