Answer: it’s 0
Explanation:
Charlize got it right
The charge of the particle q₁ has a magnitude that equals that of proton.
The given parameters:
Charge on particle q1, = -1.6 x 10⁻¹⁹ CCharge on particle q₂, = 1.6 x 10⁻¹⁹ CCharge on particle q₃, = -1.6 x 10⁻¹⁹ CThe particle q₂ is a positive charge whose magnitude is equal to charge of proton.
A proton is a positive charge with a magnitude of 1.6 x 10⁻¹⁹ C. This charge exerts attractive force on a negative charge (electron).
Thus, the charge of the particle q₁ has a magnitude that equals that of proton.
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what does thermal energy do
Answer:
Thermal energy can be transferred to one object to another in the form of heat. It causes molecules and atoms to collide with each other because of the rising of heat.
Explanation: Well thermal energy is a example of kinetic energy. It is heated by motion. It is heat that can be measured
a uniform resistance wire is stretched till its length becomes 4 times what happens to the resistance
Question 2
When the frequency of SOUND changes, we hear a change in
when the frequency of LIGHT changes we see a change in
А
intensity, color
9
B
loudness, brightness
С
pitch, color
D
pitch, brightness
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Answer:
C
Explanation:
When the frequency of sound changes, we hear a change in pitch. When the frequency of light changes we see a change in color.
A solid metal ball with a mass of 10.0 kg is placed on a smooth floor what force would be needed to accelerate the ball at a rate of 2.0 m/s2.
40 N
20 N
5 N
0.2 N
According to the graph, how many atoms would remain after two half-lives?
20 atoms
80 atoms
40 atoms
50 atoms
Answer:
Let No be initial no of atoms
N = N0 / 2 after 1 half-life
N = N0 / 4 after 2 half-lives
So after 2 half-lives 20 of the 80 atoms remain
A ___ is a large ball of gas that generates its own energy. This energy is created by the fusion of ___ atoms to make ___.
Answer:
Star, hydrogen and energy
Explanation:
A star is a large ball of gas that generates its own energy by fusing hydrogen atoms to make helium. It is held together by its own gravity. This process emits a tremendous amount of energy, and some of the energy is in the form of light.
The energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. When the core is hot enough, nuclear fusion commences. Fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.
can someone help? i don’t need 14
Answer:
Explanation:
11.) d
12.) f
13.) c
15.) i
pls give me brainliest
Stars are held together by the force ___, ___ and the composition determine the amount of ___.
Help Me Please I’m Give You Brainiest
6H2O + 6CO2 → C6H12O6 + 6O2
6H2O + 6CO2 → C6H12O6 + 6O2It is photosynthesis.
If the reaction was opposite then it was cellular respiration.
C6H12O6 + 6O2 → 6H2O + 6CO2
does earths rotation on its axis And its movment through space time give us gravity?
Answer:
yes
Explanation:
moving earth makes us stand on ground
Answer:
the rotation of the earth can affect your weight but not gravity
state newton's second law
Answer:
La segunda ley de Newton define la relación exacta entre fuerza y aceleración matemáticamente. La aceleración de un objeto es directamente proporcional a la suma de todas las fuerzas que actúan sobre él e inversamente propocional a la masa del objeto, Masa es la cantidad de materia que el objeto tiene.
Explanation:
corona y corazon plis
[tex] \large{ \tt{❃ \: ANSWER}} : [/tex]
☄ Newton's second law of motion states that," acceleration produced in a body is directly proportional to the force applied to it in the direction of motion and inversely proportional to its mass ". This Newton's second law of motion describe the relationship between force and Acceleration.
[tex] \large{ \tt{☃ \: SOME \: EXAMPLES}} : [/tex]
A cricket player while catching a ball moves his hands backwards.A person jumping on a cemented floor is injured more than a person jumping on sandy floor.It is difficult to catch a cricket ball as compared to a tennis ball moving with a same velocity.It is easier to drag a stone than to kick it.✺ Don't Forget the lifestyle , You have promised to yourself.
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# StayInAndExplore ! ☂
▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁
is a
The wire in a simple circuit
which forms an
unbroken pathway, allowing the
electric charges to flow.
A. switch
B. insulator
C. resistor
D. conductor
Answer:
I believe the answer is D: Conductor.
What element is found the following nuclear reaction
Answer:
h
Explanation:
What is the intensity of sound produced by an elephant's call if it has a power of 0.45 W and you are standing 32.5 m away from the lumbering beast
Answer:
I = 1.36 x 10⁻⁴ W/m²
Explanation:
The intensity of the sound produced by the Elephant can be calculated by using the following formula:
[tex]I = \frac{P}{A} \\\\[/tex]
where,
I = Intensity of sound = ?
P = power of sound = 0.45 W
A = area = πr² = π(32.5 m)² = 3318.3 m²
Therefore,
[tex]I = \frac{0.45\ W}{3318.3\ m^2} \\\\[/tex]
I = 1.36 x 10⁻⁴ W/m²
How much work is done by 0.070 m3 of gas, when the volume remains constant with pressure of 63 x 105 Pa?
Answer:
W = 0 J
Explanation:
The amount of work done by gas at constant pressure is given by the following formula:
[tex]W = P\Delta V[/tex]
where,
W = Work done by the gas
P = Pressure of the gas
ΔV = Change in the volume of the gas
Since the volume of the gas is constant. Therefore, there is no change in the volume of the gas:
[tex]W = P(0\ m^3)\\[/tex]
W = 0 J
Heat is the measurement of energy from all the particles that are in a substance.
Please select the best answer from the choices provided : T/F
Explanation:
the correct answer is (true) if am not mistaking incase am wrong sorry
why thermos flask used
Answer:
Explanation:
A thermos helps prevent heat loss when the thermos is holding a hot substance and then helps prevent heat gain when the thermos is holding a cold substance. So a thermos can keep hot things hot and cold things cold.
can someone please help me please I will mark brainlist and give you 5 stars pleasee
Answer:
If I did my calculations correctly then the answer is 11 but I may be weong
Answer:
it's 11
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Any wave of any kind will change direction when it encounters an obstacle. This bending is called
Group of answer choices
resonance
the photoelectric effect
interference
diffraction
Answer:
diffraction is the correct answer
Which of the following in the list is the best conductor: plastic, metal, styrofoam, or glass?
Answer:
Metal
Explanation:
Answer:
metal is the best conductor. the others are insulators
What happens to the force of gravity between two masses if they are moved closer?
It fluctuates.
It decreases.
It stays the same.
It increases.
The force of gravity between two masses increases as they are moved closer together.
option D.
What is Newton's law of universal gravitation?Newton's law of universal gravitation states that the magnitude of the force between two masses is directly proportional to the product of the two masses and inversely proportional to the square of the distance between them.
F = GM²/R²
where;
M is massR is the distance between the massesThe force of gravity between two masses increases as they are moved closer together. This is because gravity is an attractive force that depends on the distance between the masses.
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What process is represented by this redox equation ? 6H 2 O+6CO 2 C 6 H 12 O 6 +6O 2
What process is represented by this redox equation ?
6H 2 O+6CO 2 C 6 H 12 O 6 +6O 2
Answer:-This equation is of the process of photosynthesis. The proper equation is :-
6CO2+6H2O→C6H12O6+6O2.
Which is not true about the role of gravity in the formation of planets?
Dust and gas particles that were attracted to each other began to rotate into a protoplanetary disk.
Gravity between planetesimals caused them to join together into conglomerate clumps. Our solar system is the only place in the universe where gravity played a key part in the formation of planets.
Gravity of larger objects in orbit around the sun attracted, and cleared the orbital path of, smaller planetesimals, gas, and dust.
Our solar system is the only place in the universe where gravity played a key part in the formation of planets.
This is Flase
What is resultant force
Answer:
resultant force is a overall force acting on a body
hope it helps.
9. Bryce drove his car 10 km from his house to Belle Plaine. It took him 8 minutes. He got stopped at a long
traffic light on the return home and so he took 2 minutes longer on the return trip. What was Bryce's average
speed in km per minute? (3 pt)
Answer:
2 km/minuteExplanation:
Here, we are asked to calculate the average speed in km/minute.
As we know that,
Average speed = Total distance ÷ Total time takenHere,
→ Total distance = 10 km + 10 km
Because, he first drove 10 km from his house to Belle Plaine and then he again came back to his house.→ Total distance = 20 km
→ Total time = 8 minutes + 2 minutes
→ Total time = 10 minutes
Substitute the values in the formula of average speed,
→ Average speed = Total distance ÷ Total time taken
→ Average speed = 20km ÷ 10 minutes
→ Average speed = 2 km per minuteIf a 60 W light bulb, powered with 620,000 J of energy, in a bedside lamp is only 20 percent efficient in converting electrical energy into light energy, how many joules of light energy does this light bulb produce each time?
Answer:
720 Joules
Explanation:
Given: 60 W light bulb powered by 620,000 J of energy. 20 percent efficient in converting electrical energy into light energy
To find: how many joules of light energy does this light bulb produce each time?
Formula: [tex]E = \frac{hc}{A}[/tex]
Solution: The total amount of energy generated by the light bulb every minute is 3600 Joules. If the light bulb is only twenty (20) percent efficient in converting that energy to visible light energy, that would be twenty percent of the total.
E (Joules) = P (Watts) X t (seconds)
E = 60 W X 60 seconds
E = 3600 Joules of energy
20% of 3600 = 720 Joules
Therefore, it produces 720 joules of light each time.
The probability which is based on the observations of an experiment is called: A. Theoretical Probability B. Axiomatic Probability C. Experimental Probability D. None of these
Answer:
C. Experimental Probability
Explanation:
The empirical (or experimental) probability means the event that arise and depend how the event arise when the data is collected from an experiment in a more no of trials. It would be depend upon the direct observation. Here each and every observation in an experiment is known as trial
So the probability that depend upon the experiment observation is known as the experimental probability
Hence, the option c is correct
In chemical reactions, energy is absorbed or released in the form of:
a) Sound
b) Heat
c) Light
Answer:
Heat
Explanation:
Because chemical energy is stored, it is a form of potential energy. When a chemical reaction takes place, the stored chemical energy is released. Heat is often produced as a by-product of a chemical reaction – this is called an exothermic reaction.
Hope this helped.
Explanation:
Answer Should be B.
Its in Form of Heat.
How does the current in a circuit change if the resistance is doubled? The current is halved. The current is doubled. The current is multiplied by four. The current stays the same.
Answer:
The current is halved
Explanation:
The relationship between the current and the resistance is given by Ohm's Law, as follows:
[tex]V = IR\\I = \frac{V}{R}[/tex]
where,
V = Voltage
I = Current
R = Resistance
Therefore, if we double the resistance:
[tex]I' = \frac{V}{2R}\\\\I' = \frac{1}{2}I[/tex]
Hence the correct option is:
The current is halved
Answer:
A
Explanation:
A resistor is connected to a 36v power supply. An ammeter measures a current of 2.0 A going through it. Determine the resistance in ohm
R = 18 ohms
Explanation:
Given:
V = 36 volts
I = 2.0 A
R = ?
Use Ohm's law to solve for the resistance:
V = IR
or
R = V/I
= (36 volts)/(2.0 A)
= 18 ohms