Answer:
Revise
Test
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Newton’s Second Law
Unbalanced forces
When the forces acting on an object do not balance, the resultant force will cause the object to accelerate in the direction of the resultant force.
In other words, a resultant force on a body will cause it to change its velocity. This simply means that unbalanced forces will cause:
acceleration
deceleration
change in direction
Explanation:
7. The S.l. unit for force is
A. kg
C. m/s
B. m/s2
D. N
How does energy travel? Where is the initial source of energy in our solar system? What is the process that gives off energy from the sun called?
Answer:
How does energy travel?
One way the energy can travel is through radiation. An object can radiate energy in the form of electromagnetic waves, for example when a strong light is turned on and you can feel some heat coming from it, or when you walk under the sunlight and you can feel the heat in your skin.
Where is the initial source of energy in our solar system?
In the solar system, the source of energy comes from the Sun, and the sun irradiates that energy to all the nearby objects.
What is the process that gives off energy from the sun called?
The process is called radiation, this is all the energy that comes from the sun in the form of different electromagnetic waves (light in the visible range, UV rays, etc...)
Which is a possible result of rising ocean temperatures caused by global warming?
formation of dust bowls
increase in strength of hurricanes
rapid evaporation of water in soil
decrease in population due to health threats
Answer:
Increase in strength of hurricanes
Explanation:
A possible result of rising ocean temperatures caused by global warming is an increase in the strength of hurricanes, which is the second option. As the ocean temperatures increase, more energy is available to fuel hurricanes, making them stronger and potentially more destructive.
What is global warming?Global warming is causing the earth's climate to change, which is having a significant impact on the world's oceans. As the temperature of the oceans increases, a variety of effects can occur. One of the most well-documented impacts is the increase in the strength of hurricanes. Hurricanes form over warm ocean waters, and as the water temperature rises, it provides more energy to the storm, making it more powerful.
Hence, a possible result of rising ocean temperatures caused by global warming is an increase in the strength of hurricanes, which is the second option.
Learn more about global warming here.
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Please Help Me!!!.......
Answer:
D
Explanation:
Water has a high surface tension because the water molecules on the surface are pulled together by strong hydrogen bonds. That means a drop of water will "want" to have the smallest possible surface area.
1. what is the average speed after two seconds?
2. after three seconds?
3. after 5 seconds?
4. what is the average speed between two and four minutes?
5. what is the average speed between four and five minutes?
Answer:
1. 75 speed, 2. 90 second = 1hr. 30 second. 3. 125 = 1hr 60 seconds 4.
b. Find the velocity of a rider on the ride.
Given:
a =
r =
Unknown:
V =?
Equation:
a = v^2/r
Or
v^2 = a*r
Solution
D
Explanation:
Mutiply and alagrab to subterc
A box is pushed with a force of 15 N through a displacement of 6 m. What is the work done on the box?
Answer:
90J
Explanation:
as known that W=f×s
therefore 15×6
=90j
why is measurement important?
Answer:
Measurement is important so we could measure certain things right. By taking measurements we can have a knowledge of sizes, lengths, widths etc.
Explanation:
Which statement about this figure is false
A. Line E represents a fault line.
B. Layer C is the youngest layer.
C. d,ike K is older than layer I.
D. The fault occurred after layer F formed.
The statement about the figure that is false is that d,ike K is older than layer I. That is option C.
What is cross-cutting relationships in geology?Cross-cutting relationships is a principle that when a body pass through different layers in geology, it is usually younger than all the layers it passed through.
That is to say that, d,ike K is younger than layer I, D and B which it passed through.
Learn more about fault lines here:
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Answer:
If it's not C then it HAS to be B.
Explanation:
By deductive reasoning.
three advantages of simple machines.please tell fast
Answer:
they can help make clothing, they are useful for human like work, they are better than hand making
In which stage of sleep are you likely to experience hypnagogic
sensations of falling asleep
NREM-1 got this off a website
Imagine you are an astronomer who recently discovered a new planet orbiting a distant star. Which set of characteristics would you use to classify this planet as an inner or terrestrial planet? Check all that apply.
-dense and solid
-very large
-thick atmosphere containing hydrogen and helium
-lacking a solid surface
-located near a star
Answer:
The right characteristics to be used for the classification include:
-dense and solid
-very large
-located near a star
Explanation:
The above listed characteristics are part of the characteristics used in classifying a planet as a habitable planet or non-habitable one. When a planet is closer to a star which revolves around it, this helps in supplying the needed light to it.
Answer:
dense and solid
located near a star
Explanation:
You are researching a fungus that can kill banana plants. Which source is
likely to have the least reliable information?
A. An article in a popular science magazine
B. A press release about research on the fungus posted on the
website of a university
C. A posting about the fungus on a social media site
D. A report about the fungus on a nightly news show
Answer:
B
Explanation:
what could i say except ur welcome
A motorcycle engine provides 473.3 N of force for 11.9 seconds. If the rider and the cycle have a mass of 2,068.3 kg, determine the change in velocity.
Answer:
After 11.9 seconds, the velocity will increase by approximately 2.7 m/s
Explanation:
Ignoring friction, we can simply say that the speed will increase by
11.9s × 473.3N / 2068.3kg
Which can be expressed as:
11.9s × 473.3kg·m/s² ÷ 2068kg
= (11.9 × 473.3 ÷ 2048.3) (kg·m/s² × s ÷ kg)
≈ 2.7 m/s
The Big Bang Theory was supported by the discovery of the
red shift in electromagnetic spectrum
gravitational force between planets
temperature of the universe
galaxies in the universe
A box on the ground is being pulled from the left and right by string. The box is accelerating to the left. What five forces are being used?
Answer:
push and pull,kinetic energy,force,and motion. I hope this helped if I get you this question wrong I deerly aploizge.
What will most likely happen if a sound wave moves from the air through a solid?
It will increase in wavelength.
It will decrease in speed.
It will increase in speed.
It will decrease in wavelength.
What is a direct result of having greenhouse gases in the atmosphere?
Answer:
Well this is tough. I'm not sure but you are smart and can push through it. YOU DONT need the someone telling you the answer when it is inside you.
hope this helps p
If a certain test follows a normal curve, most of the scores will fall
A. at the top end
B. at the bottom end
C. all over the place
D. in the middle
Please select the best answer from the choices provided
Ο Α
OB
С
OD
Answer:
im pretty sure its d
Explanation:
Stephanie is in volleyball practices and she notices something interesting about the
effect that spiking the ball has on her hand. She notices that the harder she hits the
ball, the more that her hand hurts afterward. Which Newton's Law explains why this
happens?
The Newton's law that explains the reason for the pain experienced by Stephanie when she spikes the ball is Newton's third law of motion.
Newton's third law of motion, states that, action and reaction are equal and opposite.
The force exerted on the ball when Stephanie spikes is equal to the reaction the ball exerts back on Stephanie. As the force Stephanie applied increases, the reaction she receive from the ball increases as well and the more pain she will feel.
Thus, we can conclude that, the Newton's law that explains the reason for the pain experienced by Stephanie when she spikes the ball is Newton's third law of motion.
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What’s the main idea of this paragraph in one sentence?
Answer:
All forces are either balanced or unbalanced and each force acts in different ways.
A big kid pushes a little kid and the little kid falls backward. The big kid remains relatively stationary. What best explains this
Answer:
Becase he pushed the little kid not himself
Explanation:
Explained and elaborate further the function of assessing responsiveness
How fast is a 85 kg football player moving if they have a momentum of 125 kg*m/s?
Answer:
v = 1.5 m/s
Explanation:
m = 85 kg
p = 125 kg m/s
v = ?
p = m v
125 kg m/s = (85 kg) (v)
v = (125 kg m/s) / (85 kg)
v = 1.47 m/s
What happens to the energy when the material is changed?
Answer: When a material is heated or cooled, two changes may happen to the particles within the material: Chemical bonds between the particles may form, break or stretch. There is a change in the chemical potential store of energy in the material. The material will heat up or cool down as the particles within it gain or lose speed.
Explanation:
Does anyone know how to do this pleaseeeee
Answer:
See the answer below.
Explanation:
The latent heat of fusion is defined as the amount of energy needed to make a phase change from solid to liquid. And it can be calculated by means of the following expression:
[tex]Q_{fusion}=m*Dh[/tex]
where:
Qfusion = Heat Energy [J]
m = mass = 0.65 [kg]
Dh = latent heat fusion = 330000[J/kg]
[tex]Q_{fusion}=0.65*330000\\Q_{fusion}=214500[J][/tex]
2)
We know that energy can be calculated from power, where power is defined as the relationship between energy over time.
[tex]P=E/t[/tex]
where:
P = power = 60 [w]
E = energy [J]
t = time = 5 [min] = 300 [s]
[tex]E=P*t\\E=50*300\\E=15000[J][/tex]
The mass change due to the process is equal to:
[tex]m=282-274\\m=8[g]=0.008[kg][/tex]
Now using the following equation for the latent heat of Fusion, we can calculate this value:
[tex]Q=m*Dh\\Dh =Q/m\\Dh=15000/0.008\\Dh=1875000[J/kg][/tex]
what substance is used by plants as a source of food
Answer:
dart
Explanation:
dart and sun and water so that the plant be okay
Determine the mass of a boat that is propelled forward by a force of 1250N at an acceleration of 3 m/s2.
Answer:
416.6 KG
Explanation:
Due to the mass being missing from the equation you divide the force by the acceleration
Which example of heat transfer is due mainly to convection?
a tree is blank relative to earth a tree is blank relative to the sun
hmmmmmmmmmmmmmmmmm ask someone else sorry if im not helping