Answer:
C
Explanation:
We don't need to know which pole is in the bars. We just need to see that the lines of the magnetic field, represented by the iron filings, are leaving one bar and joining another - we don't need to know which bar is. To do that, we should define what is the North Pole, where the lines leave, and what is the South Pole, where the lines go.
If we had equal poles, the lines would be pointing out the bars like that <<<< BAR >>>>>
<<<<<BAR>>>>>
not joining one or another.
You are on a boat cruising at 10 m/s when you decide to accelerate at 5 m/s^2 until you reach a speed of 30 m/s.
How far did you travel during the acceleration
Answer:
Avg time (s) * Avg velocity (m/s) = Answer (m)
If the resistance of a circuit is 3 ohms, and the voltage produced by the cell in the
circuit is 12 volts, what's the magnitude of the current?
0.25 amperes
09 amperes
36 amperes
4 amperes
Answer:
The magnitude of the current is 4A (amperes).
Explanation:
We can use [tex]V=IR[/tex], where V stands for Voltage, I stands for current, and R stands for resistance to solve this problem.
A such:
[tex]V=12\\I=\text{ ?}\\R=3\\\\\text{Solve for I}:\\12=3I\\3I=12\\I=\frac{12}{3}\\I=4\text{A}[/tex]
Why is it important for someone to NOT stay bedridden for a long time after
fracturing a bone?
The Moon has a mass of 7.35 * 1022 kg, and a radius of 1.737 * 106 m. Based on
these values, what is the acceleration due to gravity on the surface of the Moon?
Answer:
1.63 [tex]ms^{-2}[/tex]
Explanation:
The equation [tex]g = \frac{G*M}{R^2}[/tex] would be used where:
g = acceleration due to gravity
G = universal gravitational constant (6.67408 × [tex]10^{-11}[/tex] [tex]m^{3} kg^{-1} s^{-2}[/tex])
M = mass
R = radius.
assuming the values following both 10s of the mass and radius are their exponents, which is a little confusing, the values given would simply be substituted.
Anyone can correct me if I'm wrong.
Why do scientists include a disclaimer about the "actual" number of characteristics that quantify life? Choose the best answer.
There are still many factors about life being studied and discovered.
Some of the characteristics may not be true.
Answer:
this is the answer
Explanation:
There are still many factors about life being studied and discovered
What is the approximate speed of sound in air in metres per second?
Answer:
about 343 metres per second
please help me thank youuu !!!
Answer:
right
Explanation:
high temperature to low temperature
What happens to the particles when the temperature decreases?
- move more/faster
- move less/slower
- nothing changes
Answer:
move less/slower
Explanation:
Do you think it is possible to control the magnetic properties of a magnet? Can a magnet be turned on and off? Explain your answer.
Answer:
Yes it is possible to control to some extent
Explanation:
Yes it is possible to control to some extent. Explanation: In general there are two types of magnets : permanent and temporary (electromagnets). ... On the other hand permanent magnet cannot be switched on and off but the magnetic properties can be altered event to an extent when it loses all its magnetic properties.
(b) The figure below shows a model train, travelling at speed , approaching a
buffer
model train
buffer
spring
The train, of mass 2.5 kg, is stopped by compressing a spring in the buffer.
After the train has stopped, the energy stored in the spring is 0.48 J.
Calculate the initial speed v of the train.
Answer:
0.62 m/s
Explanation:
Given that a model train, travelling at speed , approaching a buffer model train buffer spring
The train, of mass 2.5 kg, is stopped by compressing a spring in the buffer.
After the train has stopped, the energy stored in the spring is 0.48 J.
Calculate the initial speed v of the train
Solution
The total energy stored in the spring will be equal to the kinetic energy of the train.
That is,
1/2fe = 1/2mv^2
Substitutes the spring energy, and mass into the formula
0.48 = 1/2 × 2.5 × V^2
2.5V^2 = 0.96
V^2 = 0.96 / 2.5
V^2 = 0.384
V = sqrt ( 0.384 )
V = 0.62 m/s
Therefore, the initial velocity of the train is 0.62 metres per second.
If unbalanced forces act on an object, how will it move?
A.It will accelerate in the direction of the net force.
B.It will accelerate in the opposite direction of the net force.
Answer:
A
Explanation:
A suitcase has mass of 4.1 kg and sits on a counter 1.8 m high in the airport. How much gravitational potential energy does it have?
Answer:
72.324 J
Explanation:
Formula for gravitational potential energy is given by;
GPE = mgh.
Where;
m = mass
g = acceleration due to gravity
h = height
We are given;
m = 4.1 kg
h = 1.8 m
Thus;
GPE = 4.1 × 9.8 × 1.8 = 72.324 J
Please answer a and b it’s due today
Answer:
A: 10 kilometers per hour
B: 4 kilometers per minute
Explanation:
Divide 20 by 2
divide 120 by 30
How sunspot are formed ?
Answer:
Sunspots are magnetic in nature. They are the places ("active regions") where the Sun's magnetic field rises up from below the Sun's surface and those magnetic regions poke through. ... Sunspots are formed continuously as the Sun's magnetic field actively moves through the Sun.
An apple in a tree has a gravitational potential energy of 175j. And a mass of 0.36 how high from the ground is the apple
Answer:
Answer: The height of the apple from the ground is at 49552.61071 m or is approximately at 5.0 × 10 m.
The compass is a small bar magnet that’s free to spin. Based on what you observed, is the coil of wire with current passing through it a magnet?
Answer:
People have been aware of magnets and magnetism for thousands of years. The earliest records date back to ancient times, particularly in the region of Asia Minor called Magnesia—the name of this region is the source of words like magnet. Magnetic rocks found in Magnesia, which is now part of western Turkey, stimulated interest during ancient times. When humans first discovered magnetic rocks, they likely found that certain parts of these rocks attracted bits of iron or other magnetic rocks more strongly than other parts. These areas are called the poles of a magnet. A magnetic pole is the part of a magnet that exerts the strongest force on other magnets or magnetic material, such as iron. For example, the poles of the bar magnet shown in Figure 20.2 are where the paper clips are concentrated.
A bar magnet with paper clips attached to it.
Figure 20.2 A bar magnet with paper clips attracted to the two poles.
If a bar magnet is suspended so that it rotates freely, one pole of the magnet will always turn toward the north, with the opposite pole facing south. This discovery led to the compass, which is simply a small, elongated magnet mounted so that it can rotate freely. An example of a compass is shown Figure 20.3. The pole of the magnet that orients northward is called the north pole, and the opposite pole of the magnet is called the south pole.
Answer:
Yes, the coil of wire with current passing through it is a magnet.
Explanation:
You are trying to gain possession of the soccer ball. What position are you playing?
a. both offense and defense
b. neither offense or defense
c. offense
d. defense
Answer:
a
Explanation:
Answer:
it's d. Defense
defense
Explanation:
yes
Students performed multiple trials of a tennis ball rolling across the floor and recorded their observations in the table shown below.
Trial Observation
1 rolled toward the left for 6 meters before stopping
2 rolled 12 meters in 5 seconds before stopping
3 stopped after it rolled 4 meters in 2 seconds
4 stopped after it rolled toward the right for 3 meters in 1 second
From which trials can the velocity of the tennis ball be determined?
A.
4 and 2
B.
3 and 1
C.
1 and 4
D.
2 and 3
The trials where the velocity of the tennis ball is to be determined should be option c. 1 and 4.
What is velocity?It is the quantity of the vector that defined the rate where an object is to be changed the position. Here the person could be imagined and then moved in a rapid way like one step forward and one step back.
So here it should be rolled to the left hand side and it can be stopped after it rolled towards the right hand side.
learn more about velocity here: https://brainly.com/question/1303810
USE THE PICTURE THANKS WILL GIVE B WRONG ANSWER=report lol love ya
Answer:
I would have to say B THe su would rise in the west and set in the east But this is just a guess
Suppose that it takes 0.6 seconds for a mass on a spring to move from its
highest position to its lowest position. What is the period of the spring?
0.3 seconds
0.6 seconds
1.2 seconds
2.4 seconds
Answer:
1.2
Explanation:
____________ is maintaining stable conditions inside the body
People living near wind farms sometimes object to them because of visual pollution and what other
form of pollution?
Answer:
Wind turbines are a source of clean renewable energy, but some people who live nearby describe the shadow flicker, the audible sounds and the subaudible sound pressure levels as "annoying." They claim this nuisance negatively impacts their quality of life
Another form of pollution in the farm is called noise pollution
Noise pollution is simply known as disturbing or elevated sound that constitute nuisance and affects the health and well-being of people.Noise pollution from farm includes animals making different sounds, sounds from farm machineries and farm equipment etc.Conclusively, we can say that another form of pollution in the farm is called noise pollution
Learn more from
https://brainly.com/question/19196569
The name of C (S) + o2 (g) CO2 (g)
Answer:
carbon + oxygen → carbon dioxide
How do you know if you have all the forces needed for a FBD?
How can you use a screen to
determine whether an image is real or virtual?
Can someone help me pls!!
Answer:
Decelerating
Explanation:
One arrow is moving it forward but the other arrow is using more force to move it backwards causing it to have a reduction in speed.
For an object to appear transparent, what interaction must occur between light
waves and the object they hit?
Answer:
called optically transparent.
Explanation:
Photons interact with an object by some combination of reflection, absorption and transmission. Some materials, such as plate glass and clean water, transmit much of the light that falls on them and reflect little of it; such materials are
define atmospheric pressure, prove that presence of atmospheric pressure with the help of an activity
the pressure exerted by the atmospheric air is called atmospheric pressure
A roadster undergoes a uniform acceleration of 7.5 m/s2. If the force causing the acceleration is 5560 N, what is the mass of the car?
Answer:
741.333
Explanation:
F = ma
so in order to find mass you must change the equation to
m = F/a
m = 5560/7.5
741.333 = 5560/7.5
A boy pushes his baby sister in a stroller that has a mass of 45,000 g. What is the acceleration on the stroller if the force is 65 N?
[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the Concept of the Force.
Force = Mass * Acceleration.
here, Mass = 45 kg and Force = 65 N
hence, Acceleration = 65/45
===> Acc. = 1.44 m/s^2
hence the acceleration is 1.44 m/s^2