Answer: A) reactants
Explanation:
Reactants are the substances that have chemical reactions when they are combined, whereas the product is what comes from the reactants’ chemical reactions.
Answer:
A)reactants
Explanation:
I think the correct answer is reactants because the substances that go into a chemical reaction are called reactants.
Sorry if it's wrong:(
What happens to the gravitational force between two objects as the bodies become farther apart from each other?
A.
The gravitational force decreases
B.
The gravitational force stays the same
C.
The gravitational force increases
D.
The gravitational force begins to repel the objects.
Answer:
b ( gravitational force stays the same )
Explanation:
because I learned it in school.
Answer: A. The gravitational force decreases
Explanation: I got it correct on Study Island :)
Planets move around the sun in elliptical orbits.
A. true
B. false
Answer:All planets move in elliptical orbits, with the sun at one focus. This is one of Kepler's laws. The elliptical shape of the orbit is a result of the inverse square force of gravity. The eccentricity of the ellipse is greatly exaggerated here.
so it is true
Explanation:
Answer:
True
Explanation:
You can't actually see the orbits or paths of the planets revolving around the sun.
Explain what happens when a ferromagnetic material is made into a permanent magnet.
On a camping trip on the Oregon coast, you decide to hike to the ocean, but you are not sure of the direction. The time is 4:00 P.M. How might the breeze help you find the ocean? Explain.
Answer:
Because of the time, the breeze is blowing cold towards the ocean. It has to do with wind drafts.
Sea breeze come from ocean to land area. Hence, travelling against sea breeze, you get direction of the coast.
What is sea breeze?Any wind that flows from a big body of water onto a landmass is called a sea breeze. Sea breezes form as a result of changes in air pressure brought on by the different heat capacities of water and dry land.
Sea breezes are therefore more confined than prevailing winds. A sea wind is frequently seen along coasts after sunrise because land warms up far more quickly than water does when exposed to solar radiation. After sunset, a sea breeze diminishes and the wind shifts to flowing from the land towards the sea.
During afternoon ( 4.00 PM), sea breeze come from ocean to land area. Hence, travelling against this breeze, you get direction of the coast.
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What is the maximum amount of potassium nitrate (KNO3) that can dissolve in 100 grams of water at 40°C?
A.
25 grams
B.
50 grams
C.
62 grams
D.
75 grams
Answer: 62 gram
Explanation:
Using attached solubility graph
This solubility graph tells us the amount of potassium nitrate that can be dissolved per 100g of water in order to have a saturated solution of potassium nitrate at a given temperature.
In order to find the solubility of the salt at 40∘C, start from the 40∘C mark on the graph and move up until you intersect the curve. At the point of intersection, move left until you intersect the y axis and read off the value that you land on.
In this case, you can estimate that the solubility of potassium nitrate in water at 40∘C is equal to about 62g
This tells you that a saturated solution of potassium nitrate will hold about 62 g of dissolved salt, i.e. of dissociated salt, per 100g of water at 40∘C.
Please find the attached file for the graph.
Which best describes what occurs when an object takes in a wave as the wave hits it?
A: transmission
B: absorption
C: reflection
D: refraction
Answer:
For Edge users, the answer is absorption.Explanation:
what does adicate mean? Use it in a sentence
Answer:
I think adicate means there's a lot of diffrent definition ill jus tell you the social studies one it means "renounce one throne" i think
Explanation:
what is the density of the troposhere
Answer:
6-16km
Explanation:
I think this is the answer.i hope this helps you out! ☺️
Is the Air Force better than the Navy?
Answer:
I think that's more of an opinion
What is vector quantities?
Answer: Vector quantity is a measurement that has both magnitude and direction.
Explanation:
Vector quantity is a measurement that has both magnitude and direction. Examples are force, acceleration, displacement and velocity.
Shayla was late for school. She ran the last half mile in 4 minutes. What was her average speed in miles per hour?
Answer:
7.5 miles per hour
Explanation:
Mercury, Venus, and Earth are the three planets closest to the Sun. The force of gravity on the surface of each planet is different. Which of the following places these three planets in order from greatest surface gravity to least?
A.
Earth, Mercury, Venus
B.
Venus, Earth, Mercury
C.
Mercury, Venus, Earth
D.
Earth, Venus, Mercury
Earths surface gravity: 9.7
Venus surface gravity: 8.8
Mercury's surface gravity: 3.7
Your answer would be D: Earth, Venus, Mercury
Hope this helps! (:
1. A 2 C charge moving at 15 m/s enters into a magnetic field of strength 8
T. What is the maximum force experienced by this charge? *
Answer:
Maximum force on the charge is 240 N
Explanation:
We have given charge q = 2C
Speed of the charge v = 15 m/sec
Magnetic field B = 8 T
It is known that magnetic force on the moving charge is given by
[tex]F=qvBsin\Theta[/tex]
Maximum force will be equal to
[tex]F=qvB[/tex]
[tex]F=2\times 15\times 8=240N[/tex]
Therefore maximum force on the charge is 240 N
Final answer:
The maximum force experienced by a 2 C charge moving at 15 m/s in an 8 T magnetic field is 240 N, assuming the charge moves perpendicular to the magnetic field.
Explanation:
The maximum force experienced by a 2 C charge moving at 15 m/s in a magnetic field of 8 T can be calculated using the formula F = qvB sin θ, where q is the charge, v is the velocity, B is the magnetic field strength, and θ is the angle between the velocity and the magnetic field. Assuming the maximum force occurs when the charge moves perpendicular to the magnetic field (θ = 90 degrees), the sine of 90 degrees is 1, simplifying our calculation to F = qvB. Thus, the maximum force is F = (2 C)(15 m/s)(8 T) = 240 N.
49. In what direction does the force of friction act?
Infer whether a circuit breaker should be connected in parallel to the circuit that it is protecting.
The circuit breaker should be connected in series to the circuit that it is protecting it.
The circuit breaker is a device that helps to protect the circuit. In case of emergency the circuit breaker cuts off any live wiring in the circuit. This process will only be possible if the circuit is connected in series to the circuit.
In series circuit connection, current flowing in the circuit is the same. When the circuit breaker cuts off, all the current flowing in the circuit breaks.
Thus, the circuit breaker should be connected in series to the circuit that it is protecting it.
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What does the law of conservation of momentum
Answer:
the total momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision.
Explanation:
A magnet and a metal paper clip have the strongest magnetic attraction when the distance between them is _____________.
A
16 centimeters
B
12 centimeters
C
8 centimeters
D
4 centimeters
Answer: D
4cm
Explanation:
Any magnet is strongest for attracting other objects at close range. However, the strongest point of attraction depends on the magnetic pole position which is at a point inside the magnet.
The amount of electric energy consumed by a 60.0-watt lightbulb for 1.00 minute could lift a
10.0-newton object to a maximum vertical height of
A) 6.00 m B) 36.7 m C) 360. m D) 600. M
Answer:
Explanation:
Given that,
Amount of energy consumed by a 60W light bulb for 1 minutes
P = 60 W
t = 1 mins = 60seconds
This energy can be used to lift a body that weight 10N
W = 10N
This shows that the electrical energy is converted to potential energy
Let calculate the electrical energy
Power is the rate of doing work
Power = Work / time
Therefore, work = power × time
Work = 60 × 60
Work = 3600 J
Potential energy can be calculated using
P.E = mgh
Where, weight is
W = mg
Then, P.E = W•h
P.E = 10•h
Then,
Potential energy, = Electrical energy
P.E = Work
10•h = 3600
Divide both sides by 10
h = 3600 / 10
h = 360m
So, the object will be lifted to a height of 360m
Answer:
360. m
Explanation:
Fill in the blank. When the northern hemisphere experiences autumn, the southern hemisphere experiences __________.
A. spring
B. summer
C. autumn
D. winter
What does the air of the air capacitor represent in an electrical capacitor?
The parallel conducting plates
The source of electrical current
The insulation between plates
The charged plate of a magnetic field
Answer:
The source of electrical current
Explanation:
i got it right
It presents the electrical current source.
Air capacitor:Air capacitors are those capacitors that use air as their dielectric. The simplest air capacitors should be comprised of two conductive plates separated by an air gap. So when there is the source of electrical current so it present the electrical capacitor.
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Select the correct answer.
Which situation will have the highest resistance?
A. long wire and high temperature
OB. short wire and high temperature
C. long wire and cold temperature
D. short wire and low temperature
Answer:
C. long wire and high temperature
Explanation:
I just did the test on PLATO.
two astronauts are playing catch in space. One of them misses a throw. Describe the motion of the ball after the astronaut missed the catch
Answer:
the ball floats away far out into the space and it goes at a fast motion because no friction can stop it if it's doesn't bump into anything
From the drop-down list, choose the flaw for the given scientific design.
A student wants to determine how well tulips will bloom at high temperatures. She knows they bloom well at room temperature, so she sets up groups at higher temperatures: 80°F, 90°F, and 100°F.
Answer: The design lacks to control group
Explanation:
Answer:The design lacks a control group
Explanation:
edg
2. Two charges are attracted to each other with a force of eight units. If the charge of one of the two
doubles and the distance between the two objects remains the same, what will be the new force of
attraction between the two objects? Explain your answer.
Answer:
16
Explanation:
The formula for the force of attraction between two charges is [tex]\frac{k\cdot q_1q_2}{r^2}[/tex], where k is a constant, [tex]q_1[/tex] is the first charge, and [tex]q_2[/tex] is the second charge. As you can see, if the radius or distance increases by 2, the force decreases by 4 because it grows exponentially. However, if the charge of one of the particles increases by 2, the force between the two also increases by 2. Therefore, the new force will be 8*2=16. Hope this helps!
The new force of attraction between the two objects is;
F_new = 2F
The formula for force of attraction between two objects is;
F = kq1•q2/r²
Where;
k is coulombs constant
q1 is charge of first object
q2 is charge of second object
r is distance between both objects
Now we are told that the charge of one of the two object doubles and the distance between them remains the same.
This means q1 is now 2q1.
Thus;
F_new = k(2q1) × q2/r²
>> F_new = 2(kq1•q2/r²)
Thus, new force of attraction between both objects will be twice the initial force of attraction which is 2F.
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A child drags a 0.398 kg toy dog
across flat ground at constant speed,
with a 4.63 N force at a 63.0° angle.
What is the force of friction on the
toy?
(Hint: You do NOT need to know the
coefficient of friction.)
Answer:
-2.1 N
Explanation:
The force of friction on the toy is 2.10 N and it acts opposite to the direction of its motion.
What is friction?A force called friction prevents one solid object from rolling or sliding over another. Although frictional forces, such the traction required to walk without slipping, may be advantageous, they can provide a significant amount of resistance to motion.
Given parameters:
mass of the toy dog: M = 0.398 kg.
Applied force: F = 4.63 N.
Angle of application of force: θ = 63.0°
Hence, horizontal component of applied force = F cosθ
= 4.63 × cos63.0° N
= 2.10 N.
As the child drags a 0.398 kg toy dog across flat ground at constant speed, this component of applied force is nullified by force of friction.
Hence, the force of friction on the toy is 2.10 N and it acts opposite to the direction of its motion.
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Can you change how much power you use while exercising?
Answer:Most treadmills and stationary bikes use electricity, but what if you could produce electricity while exercising? With a pedal-power generator, you can! And you can use the electricity immediately to power a television, computer, stereo or other electronics — or store it in batteries to use it later.
Explanation:
Lightning is an example of static discharge.
True Or False
Answer:
true
Explanation:
Answer: true
Explanation:
Samantha and Emily are pushing a box of textbooks in the same direction across their classroom. Samantha is applying a force of 10 newtons, and Emily is applying a force of 10 newtons. What is the net force of their efforts?
Final answer:
The net force of Samantha and Emily's efforts is 20 newtons.
Explanation:
The net force of Samantha and Emily's efforts is 20 newtons. When two forces are applied in the same direction, their magnitudes can be added to find the net force. In this case, Samantha and Emily are both applying a force of 10 newtons, so the total force is 10 newtons + 10 newtons = 20 newtons.
A graph titled Position versus time for with horizontal axis time (seconds) and vertical axis position (meters). A straight blue line runs with an upward slope from 0 seconds 3 meters to 4 seconds 15 meters.
The starting position of this object is
m.
The object is traveling at a velocity of
m/s.
Final answer:
The question involves analyzing a position vs. time graph to determine the object's starting position at 3 meters and its velocity, which is calculated as 3 m/s based on the slope of the line.
Explanation:
The question pertains to analyzing a position vs. time graph of an object in motion to determine its starting position, velocity, and other characteristics of its motion. Given the description of a graph where a straight blue line runs with an upward slope from 0 seconds at 3 meters to 4 seconds at 15 meters, we can infer several key details about the object's movement.
The starting position of this object is 3 meters. This is inferred from the graph's indication that at 0 seconds, the object is at 3 meters.
The object is traveling at a velocity calculated from the slope of the line on the position vs. time graph. The velocity can be found using the formula velocity = (final position - initial position) / (final time - initial time). Substituting the given values, velocity = (15 meters - 3 meters) / (4 seconds - 0 seconds) = 12 meters / 4 seconds = 3 m/s.
This scenario highlights the concepts of initial position, velocity, and the relationship between slope on a position vs. time graph and the velocity of an object in motion.
the instantaneous speed at 2 seconds is **0 m/s** since the position remains constant, and the average speed over the entire trip is **1 m/s** based on the information provided by the position-time graph.
To determine the instantaneous speed at 2 seconds and the average speed over the entire trip from the given position-time graph with three straight segments, we can analyze the information provided. Here's how we can approach this:
1. **Instantaneous Speed at 2 Seconds**:
- Since the graph provides position values at specific time points, we can find the instantaneous speed at 2 seconds by looking at the slope of the graph at that point.
- At 2 seconds, the position is not explicitly given. We can infer it based on the straight segments. The position remains constant at 12 meters from 4 seconds to 6 seconds.
- Therefore, at 2 seconds, the position is 12 meters. To find the instantaneous speed, we need to calculate the slope of the line connecting the points at 2 seconds and a nearby point, which is 4 seconds.
- The change in position is 12 meters - 12 meters = 0 meters (since the position remains constant), and the change in time is 4 seconds - 2 seconds = 2 seconds.
- As a result, the instantaneous speed at 2 seconds is 0 meters per 2 seconds = **0 m/s**.
2. **Average Speed over the Entire Trip**:
- The average speed over the entire trip can be calculated by dividing the total distance traveled by the total time taken.
- The object travels from 0 meters to 12 meters (12 meters) and then back to 0 meters (12 meters total distance). The total time taken is 12 seconds (0 to 12 seconds).
- Therefore, the average speed over the entire trip is 12 meters / 12 seconds = **1 m/s**.
In summary, the instantaneous speed at 2 seconds is **0 m/s** since the position remains constant, and the average speed over the entire trip is **1 m/s** based on the information provided by the position-time graph.
The probable question maybe:
A graph titled Position versus time for with horizontal axis time (seconds) and vertical axis position (meters). The line runs in 3 straight segments from 0 seconds 0 meters to 4 seconds 12 meters to 6 seconds 12 meters to 12 seconds 0 meters.
Use the graph to determine the instantaneous speed at 2 seconds.
m/s
What is the average speed over the entire trip?
Tabitha hit a 0.25 kg volleyball straight up into the air with 45 Joules of energy. How high did volleyball soar up? Round to the nearest whole number.
Answer:
18 m
Explanation:
E = mgh
45 J = (0.25 kg) (9.8 m/s²) h
h = 18 m