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4 years ago

How do the numbers of protons and electrons in an atom affect its electrical charge

1 answer:

3 0

An atom with a greater number of protons than electrons will be positively charged. An atom with a a greater number of electrons will be negatively charged.

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Please help me with this

AfilCa [17]

Answer:

20 N exerts no torque about the pivot.

14 N exerts a counterclockwise torque of 14 * .3 = .42 N-m

6 exerts a clockwise torque of 6 * .7 = .42 N-m

The meter stick will not turn because there is no net torque on the meter stick.

3 0

2 years ago

Why do our minds fill in the gaps for information we don't know? (Hint: remember what you learned about Gestalt psychology.)

shutvik [7]

the most appropriate answer is A !! our mind automatically connects everything and thus make a story that we don't even familiar with in actual !!

7 0

3 years ago

Read 2 more answers

Consider the chemical equation CH4 + 2 O2 → CO2 + 2 H2O. In this equation, CH4 is a

Dennis_Churaev [7]

$CH4+2O2=\ \textgreater \ CO2+2H2O$
Since terms which are placed left to the arrow mark are reactants and those placed right are products you can easily solve the task represented above. According to the information I've provided CH4 is reactant and it is Fule. So, the correct answer is B.

3 0

4 years ago

Read 2 more answers

How much work is done in accelerating a 2000 kg car from rest to a speed of 30 m/s?

Otrada [13]

The work done is the same as the amount of energy increase. The formula for kinetic energy is 122
1
2
m
v
2
.

The initial KE of the car is 12(1000)×202=200,000
1
2
(
1000
)
×
20
2
=
200
,
000
joules.

The final KE of the car is 12(1000)×302=450,000
1
2
(
1000
)
×
30
2
=
450
,
000
joules.

The difference between these is the amount of work done: 450,000−200,000=250,000
450
,
000
−
200
,
000
=
250
,
000
joules.
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20

3

8 0

3 years ago

Please help. Questions are in the image.

Stels [109]

A measure of how fast and in what direction an object travels Velocity

The difference between an objects's starting position

and it's ending position Displacement

Where an object is located in some reference system Position

A measure of how fast an object travels. Speed

How far an object has traveled along some paths. Distance

Explanation:

A measure of how fast and in what direction an object travels Velocity

Velocity is a vector quantity.

It implies that it is described using its magnitude and direction.
Velocity is the rate of change of displacement of a body with time.
it is expressed in km/hr, m/s

Velocity = $\frac{displacement }{time}$

The difference between an objects's starting position

and it's ending position Displacement

Displacement is a vector quantity.

It has both magnitude and direction.
it is usually taken as the difference between the starting and ending position of a body in motion.
it is expressed as m, km or miles

Where an object is located in some reference system Position

Position refers to the place where an object is located based on a particular reference system.

Position can either be relative or absolute

A measure of how fast an object travels. Speed

Speed is a scalar quantity: