Explanation:
p=5kw=5000w t=? p=w/t, t=w/p
w=25000j t=25000j/5000w
=5s
A circuit consists of a wire, a lightbulb, a switch, and a battery. What would
happen if the switch were replaced with a section of wire?
O A. The voltage and resistance would both decrease.
OB. The voltage would decrease, and the resistance would increase.
O C. The voltage would increase, and the resistance would decrease.
O D. The voltage and resistance would be the same.
Answer: D
Explanation: I took the test on A P E X
D. The voltage and resistance would be the same.
How a light bulb in a circuit with a battery works?If the light bulbs are connected in parallel, the current flowing through the light bulbs combine to form the current flowing in the battery, while the voltage drop is 6.0 V across each bulb and they all glow.
In a series circuit, every device must function for the circuit to be complete.
Electricity needs a path to follow to get from one destination to another. And the journey is always the same:
Power – Electricity always starts from a source, like a battery or an outlet.
A battery is a device that converts chemical energy contained within its active materials directly into electric energy by means of an electrochemical oxidation-reduction (redox) reaction.
This type of reaction involves the transfer of electrons from one material to another via an electric circuit.
In electronics, a circuit is a complete circular path that electricity flows through. A simple circuit consists of a current source, conductors and a load.
The term circuit can be used in a general sense to refer to any fixed path that electricity, data or a signal can travel through.
Therefore,
If the switch were replaced with a section of wire ,the voltage and resistance would be the same.
Learn more about electric circuit here:
https://brainly.com/question/18355382
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Suppose a rollerblade racer finnished a 132 meter race in 18 seconds. What is the average speed of the rollerblade racer
Answer:
As = 7.33 [m/s]
Explanation:
To solve this problem we must use the definition of the average speed, which is equal to the relationship between the distance over time.
As = x/t
where:
As = average speed [m/s]
x = distance = 132 [m]
t = time = 18 [s]
As = 132/18
As = 7.33 [m/s]
If a projectile is launched with no gravity acting on it which of the following is the trajectory?( pls hurry and do not comment if you don’t know )
Answer:
2nd one,
Its keep going, never return back
Answer:
The straight line.
Explanation:
I did this in an exam.
What is the force acting on a 16 kg object accelerating at 2.0 m/s^2
Answer:
32 N
Explanation: All you gotta do is multipy mass by velocity.
WILL MARK BRAINLIEST The diagram shows changes of state between solid, liquid, and gas. The atoms of a substance gain energy during a change of state. Before the change the atoms are close together and cannot slide past one another. After the change, the substance can fill its container.
Which arrow represents the change of state described above?
1.L
2.M
3.N
4.O
Answer:
its a top question
I think L represents ✌️
1) L
Explanation:
During the solid form are atoms close to eachother and can't move around too much. A gas can fill up a container while a liquid just takes the form of a container.
if a tree falls in the woods and nobody is there to hear it, does it really make noise
Answer: Yes
Explanation: Because, Yes.
I WILL GIVE BRAINLIEST (This question will give you 15+ points)
3. Explain and give an example of "lookback time".
Answer:
Lookback time explains that the farther away something is, farther in the past we see it. The Sun's light takes about 8 minutes to reach our eyes. So in reality, we see the Sun as it was 8 minutes ago.
Explanation:
a. What is the coefficient of kinetic friction?
Explanation:
Coefficient of kinetic friction is the resistive force that opposes the motion of a body as it moves and is in contact with another body.
It is found by dividing the frictional force by the normal force.
Friction is a force that opposes motion. Static friction is for bodies that are not in motion Kinetic friction is for moving bodies.help! 20 points
A scientist has two radioactive substances. One emits beta particles, and the other emits alpha particles. He thinks that since the alpha particles are larger, they are more dangerous to humans. Is he correct? Why or why not?
No, because beta particles move faster and can penetrate into the human body more easily.
No, because neither type of particle is dangerous to humans.
Yes, because alpha particles move more slowly, and therefore leave more lasting damage to humans.
Yes, because the larger particles carry more energy and can cause more damage to cells.
Answer:
No, because beta particles move faster and can penetrate into the human body more easily.
Explanation:
Some beta particles are capable of penetrating the skin and causing damage such as skin burns. However, as with alpha-emitters, beta-emitters are most hazardous when they are inhaled or swallowed.
Answer:
answer is A
Explanation:
Abby is 5 feet tall and casts a 4 foot long shadow of her older brother Ethan is standing next to her and casts a 4.6 shadow how much taller than Abby us Ethan
Answer:
0.6 ☻︎☻︎☻︎☻︎☻︎☻︎☻︎☻︎☻︎☻︎☻︎
Can somebody please explain to me about the rock cycle anything would help i have an assignment coming up please and thank you
A student sits on the roof of their house which is 16 meters high. She can launch water balloons (horizontally) from a slingshot at 26 m/s. How far will each balloon travel (horizontally)?
A. 67.06 m
B. 17.06 m
C. 0.06 m
D. 47.06 m
Answer:
The horizontal distance traveled by the water balloons is 47.06 m.
D. 47.06 m
Explanation:
Given;
height of the house, h = 16 m
horizontal velocity of the water balloons, v = 26 m/s
The time taken for the water balloons to hit the ground is given by;
[tex]t = \sqrt{\frac{2h}{g} } \\\\t = \sqrt{\frac{2*16}{9.8} }\\\\t = 1.81 \ s[/tex]
The horizontal distance traveled by the water balloons is given by;
x = vt
x = 26 x 1.81
x = 47.06 m
Therefore, the horizontal distance traveled by the water balloons is 47.06 m.
How fast is a plane flying if it takes 3 hours to travel 3,500 km?
Answer:
1166.67 km/h
Explanation:
3500/3
= 1166.67 km/h
Hope this helped!
Answer:
HELPP
Explanation:
According to Ohm’s law, which combination of units is the same as the unit for voltage?
ohm ÷ ampere
ampere × ohm
ohm + ampere
ampere ÷ ohm
Answer:
B: ampere x ohm
Explanation:
Took the test
Answer:
option B
Explanation:
took the test hope this helps :)
Do you need a reason to live? If you do what is your reason for living?
Answer: Well that's an easy one. Your mother birthed you but you are still alive today because you choose to continue to push forward and strive to live. As humans we all have struggles but some of choose to strive or sit in our humiliation like a kicked puppy. Pick your option.
Which waves are used in medicine?
______
A. Gamma and Microwaves
B. X rays and Gamma
C. X rays and Infrared
D. Radio waves and UltraViolet
Answer:
C
Explanation:
why do some people suffer for nose bleed at higher altitudes?
Answer:because of small amount of oxygen
Explanation:
If you get higher by the atmosphere the air will start to decrease
PLEASE HELP ME FAST MANY POINTS BRAINLIEST TO BEST
What is pitch related to in terms of sound? Does it affect its speed? If so, how?
Answer:
pitch relates to sound because it involves sound getting louder or softer. it does not affect speed.
Question 1 of 16
A bowling ball with a mass of 8 kg is moving at a speed of 5 m/s. What is its
kinetic energy?
Answer:
mass energy
Explanation:
because of the kinetic energy
The direction of a moving object will not change if the net force acting on it is
Answer:
The direction of a moving object will not change if the net force acting on it is zero.
Explanation:
If there is a net force acting on a body, the body may accelerate, slow down, or change direction. In other words, an unbalanced net force may change the state of motion of a body.
The only way a moving object will not change its direction if the body is moving with a constant velocity, meaning all the forces acting on the body are in equilibrium (or balanced). In other words, the net force acting on it is zero, and the speed, as well as direction, would not change.
Therefore, we conclude that the direction of a moving object will not change if the net force acting on it is zero.
force can change the ____________ and _______________ of an object
Answer:
Force can change the speed and direction of an object.
Explanation:
HELPPPP LOOK AT THE SCREENSHOT TO ANSWER THE QUESTIONS
17. Which object or objects are traveling at a constant velocity?
1. A
2. B
3. C
4. D
5. E
18. Which object is accelerating?
1. A
2. B
3. C
4. D
19. Which object or objects are sitting still?
1. A
2. B
3. C
4. D
5. E
20. On average, which object is traveling at the fastest velocity?
1. A
2. B
3. C
4. D
5. E
Explanation:
17. B and D.
18. C.
19. A and E.
20. B
hope it helps. :)
How are electric motors and generators similar? 
Answer:
they both produce energy
Explanation:
Colors are comprised of light rays of different what?
Answer:
Different wavelengths
Explanation:
yall think aliens real? for me no, because people been trying to search for them through telescopes and stuff for years. but still no sign of them, so they are not real, since there is no evidence, it leads us to the answer, no. we are alone in the universe. but that's only in my opinion...(I might be wrong.)
how about everyone else? how do yall feel about aliens, and us being alone?
Answer:
Personally I don't believe aliens exist maybe they do who knows but i don't think so.
Explanation:
PLEASE HELP MEE I REALLY NEED IT
Answer:
measures of central tendency are numbers that describe what an average or typical within a distribution of data there are three main measures of central tendency mean medium and mold well they are all measuring essential tendency each is calculated differently and measures something different from others
A free-body diagram is a special example of the vector diagrams that will
be used throughout our study of physics.
True
or
False
Light is ______________ that behaves like a wave and a particle
Answer:
Energy
Explanation:
In Part I of this experiment, the______was intentionally manipulated. This was the independent variable. The dependent variable measured was the _______.
In Part II of this experiment, the______was intentionally manipulated. This was the independent variable. The dependent variable measured was the_______.
Answer:
1. car hitting a barrier 2. velosity of the washer 3. force applied to the car 4. acceleration of the car.
Explanation: edge 2020
why because nice
Answer:
1: car hitting a barrier
2: velocity of the washer
3: force applied to the car
4: acceleration of the car
Explanation:
What are the strengths and limitations of the doppler and transit methods? What kind of planets are easiest to detect with each method?
help me please :( i will but brainliest
[tex]\huge\mathfrak\red{✔Answer:-}[/tex]
Strength: able to detect planets in a wide range of orbits, as long as orbits aren't face on
Limitations: yield only planet's mass and orbital properties
