which is an action/reaction force pair? check all that apply.
Answer:
According to Newton's third law, for every action force there is an equal (in size) and opposite (in direction) reaction force. Together, these two forces exerted upon two different objects form the action-reaction force pair.
Explanation:
Sana makatulong ^_^
Give one example of an object that is accelerating
Answer:
The only answer that i could think of:
A falling body
Answer:
a sky diver that just jumped out of a plane
or a car that just had the light turn green
or an apple droped from a tree
or a sled sliding down a hill
Explanation:
all of these objects would be acclerating
the skydiver and apple would be acclerating from 0 at a rate of 9.8m/s^2
Hope this helps! :)
Two cars are traveling eastward on a highway, as shown in the left figure below. After 5.0 sec, the cars are side by side at the next telephone pole, as shown on the right. The distance between each of the poles is 70.0 m. Determine the following quantities:
a) The distance the van has traveled during 5.0s interval
b) the distance limousine has traveled during the 5.0s interval.
c)The average velocity of the van during this 5.0s interval
d)the average velocity of the limousine during this 5.0s interval.
explain what is the function of energy in the body and discuss internal and external body funcutions which energy is needed for
Answer:
Energy fuels your body's internal functions, repairs, builds and maintains cells and body tissues, and supports the external activities that enable you to interact with the physical world. Water, your body's most important nutrient, helps facilitate the chemical reactions that produce energy from food.
Esther dives off a 3m springboard and initially bounces up with a velocity of 8.0 m/s at an angle of 80.0 to the horizontal.. what are the horizontal and vertical components of her velocity
This question involves the concept of the resolution of a vector into its rectangular components.
The horizontal component of velocity is "1.4 m/s", and the vertical component of the velocity is "7.9 m/s".
In order to find the horizontal and vertical components of the velocity of Esther, we must resolve the velocity vector into its rectangular components. Hence, the following formulae will be used:
[tex]Horizontal\ Component = v_x = v\ Cos\theta\\v_x = (8\ m/s)(Cos\ 80^o)\\v_x = 1.4\ m/s[/tex]
[tex]Vertical\ Component = v_y = v\ Sin\theta\\v_y = (8\ m/s)(Sin\ 80^o)\\v_y = 7.9\ m/s[/tex]
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The attached picture shows the resolution of a vector.
Please help with this :(
Answer:
Below
Explanation:
We can use this formula to find the acceleration of the crate :
acceleration = net force / mass of object
Plug in our values :
acceleration = 50 N / 50 kg
= 1 m/s^2
acceleration = 100 N / 50 kg
= 2 m/s^2
acceleration = 150 N / 50 kg
= 3 m/s^2
acceleration = 200 N / 50 kg
= 4 m/s^2
Hope this helps! Best of luck <3
If you spill household bleach on denim jeans, you will observe that the area of the spill no
longer has a blue color. Is this change chemical or physical? Give a reason for your
answer.
Answer: chemical change.
Explanation: Because the bleach has caused the denim to change color, the change is likely to be a chemical change.
The change that occurs when household bleach is spilled on denim jeans is a chemical change.
A physical change is a change in the form of a substance, but not in its chemical composition. For example, if you melt a piece of ice, you have made a physical change because the ice has changed from a solid to a liquid, but the chemical composition of the ice has not changed.
A chemical change is a change in the chemical composition of a substance. This means that the atoms in the substance are rearranged to form new substances. For example, when household bleach is spilled on denim jeans, the bleach reacts with the indigo dye in the jeans to form a new substance that is colorless.
In the case of household bleach on denim jeans, the bleach reacts with the indigo dye in the jeans to form a new substance that is colorless. This is a chemical change because the chemical composition of the indigo dye has been changed. The color change is a clear indication that a chemical change has occurred. When the bleach reacts with the indigo dye, the bonds between the atoms in the indigo dye are broken and new bonds are formed. This results in the formation of a new substance that is colorless.
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Which is greater 15 or 0.15
Answer:
15
Explanation:
0.15 is a decimal place after a 0, whereas the 15 is a whole number
density is 1.3kg/m3 volume=? mass=? 80m 40m 15m
From the given information, it's not possible to find the mass or the volume of the sample.
Density is their RATIO, but you can't tell if the sample is the size of an ant or a school-bus.
a man weighing 989n on earth only 163 N on the moon. His mass on the moon is __ kg. (Use g=9.8m/s)
Answer:
16.63265306 Kg
Explanation:
This is a Newtons to weight conversion.
Fg = weight
Fg = N/9.8
The angular resolution of a ground-based telescope is usually determined by:
For telescopes in general, ever since they were invented, it's the size of the objective lens (in the front) or mirror (in the back).
For the most hugest humongous telescopes, built in the past few decades, it's limited by the turbulence of the atmosphere. That's the main reason we started building the big ones on mountain tops and in deserts, and lately we've started putting them in Earth orbit, where they don't have to look through any air at all.
Why would protons and neutrons hold together in the first second following the Big Bang?
Answer:
The universe was hot and dense
How does the mass of an object affect its acceleration?
Answer:
the mass + the 1 constant g-force = the speed without adding air resistance
Explanation:
osmium it the most tightly packed alloy in the world so for that it will have a faster acceleration
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what’s the correct choice?
help!!
Answer:
I think it's protons as they're positive!!
What is the best app to practise physics?
Answer:
PhysicsProf.
Explanation:
Its the best
give brainliest or thanks tysm
Answer:
PhysicsProf
Explanation:
Q1: You place two charges a distance r apart. Then you double each charge and double
the distance between the charges. How does the force between the two charges
change?
a) The new force is twice as large.
b) The new force is half as large.
c) The new force is four times as large.
d) The new force is four times smaller.
e) The new force is the same.
(HELP HELP)
Answer:
F1 = K Q Q / R^2
F2 = K 2Q * 2Q / (2 R)^2 = K 4 Q^2 / (4 R^2) = K Q^2 / R^2
F1 = F2 and (e) is the correct answer
The force between the two charges will be the same, so the new force is the same. Hence, option (e) is correct.
What is Electrical energy?
When put in an electromagnetic field, charged matter experiences a force due to the fundamental property of electric charge. Positive or negative electrical ions are possible. When two charges are in opposition to one another, they repel one another.
The term "neutral" refers to an object that has no net charge. The early understanding of the way charged particles interact is now referred to as classical electrodynamics, and it is still true for issues that do not demand taking into account quant phenomena.
As per the given data provided in the question,
F(1) = K (Q)(Q) / R²
After applying the given condition in the question,
F(2) = K (2Q) × (2Q) / (2 R)²
= K 4 Q² / (4 R²)
F(2) = K Q²/ R²
Which means that F1 = F2.
Therefore, it concludes that option (e) is correct.
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A 50 kg rocket generates 990 N of thrust. What will be its acceleration if it is launched straight up?
Answer:
[tex]{ \rm{acceleration = \frac{force}{mass} }} \\ \\ { \rm{a = \frac{990}{50} }} \\ \\ { \boxed{ \rm{ \: a = 19.8 \: m {s}^{ - 2} }}}[/tex]
Can you solve this?
Lillle is running. She increases her initial speed of 30 km/h to 40 km/h so she
can win the race. If she takes 0.05 hours to complete this increase, what is
her acceleration?
[tex]\\ \sf\longmapsto Acceleration=\dfrac{v-u}{t}[/tex]
[tex]\\ \sf\longmapsto Acceleration=\dfrac{40-30}{0.05}[/tex]
[tex]\\ \sf\longmapsto Acceleration=\dfrac{10}{0.05}[/tex]
[tex]\\ \sf\longmapsto Acceleration=200km/h^2[/tex]
Answer
[tex]200km {h}^{ - 2} [/tex]
Explanation
[tex]Acceleration = \frac{final \: \: \: velocity - initial \: \: velocity }{time} \\ = \frac{(40 - 30)km {h}^{ - 1} }{0.05h} \\ = \frac{10}{0.05} \\ = 200km {h}^{ - 2} [/tex]
Hope this helps you.
Let me know if you have any other questions :-):-)
gravitational force acts a only between the sun and the planets moving around it b only between the Earth and the body is on it c between all bodies in the universe d only between the sun and the earth.
Answer:
(C) all bodies
F = G M1 M2 / R^2 all bodies (M1 and M2) are gravitationally connected
What is the acceleration of a car that travels a constant velocity of 5.0 m/s for 5.5s?
Answer:
The acceleration of car is 0m/s .
Explanation:
The velocity doesn't change .
"constant velocity" means zero acceleration.
A circus performer juggling while standing on 10 a tightrope suspended 15.0 m above the ground tosses a sword directly upward into the air with a speed of 5.0 m/s. If the sword leaves his hand 1.0 m above the tightrope, what is the sword's maximum height above the ground? Round your answer to the nearest tenth
The sword's maximum height above the ground rounded to the nearest tenth is 122.49m
In order to get the maximum height of the rope above the ground, we will use the formula for calculating the range;
[tex]R=u\sqrt{\frac{2H}{g} }[/tex]
Given the following parameters:
speed u = 5.0m/s
H is the maximum height
g is the acceleration due to gravity = 9.8m/s
R is the range = 15.0m
Substitute the given parameters into the formula to have:
[tex]15=5\sqrt{\frac{2H}{9.8} }\\\frac{15}{3}=\sqrt{0.2041H} \\5^2 = 0.2041H\\H = \frac{25}{0.2041}\\H= 122.48m[/tex]
Hence the sword's maximum height above the ground rounded to the nearest tenth is 122.49m
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What is E equal to in relativity?
[tex] \huge \underline \mathtt \colorbox{cyan}{E=mc squared}[/tex]
(E=mc^2)
Where:m is mass
And c is a constant for speed of light
Answer:
One of the most famous and well-known equations in all of human history, E = mc^2, translates to "energy is equal to mass times the speed of light squared." In other words, wrote PBS Nova, energy (E) and mass (m) are interchangeable. They are, in fact, just different forms of the same thing.
Explanation:
this is right answer
Which electromagnetic waves which electromagnetic waves have the highest frequencies in the electromagnetic spectrum?
OA.
gamma rays
B.
microwaves
O C.
radio waves
OD.
ultraviolet radiation
Answer:
gamma rays
Explanation:
why does a bus resist changes in motion more than a motorcycle
Answer:
inertia is the resistance to change, so it would make sense for the bus to not change direction and would then also resist changes in motion where as a motorcyle whouldnt be as resistent
Explanation:
Answer:
The bus has more mass than the motorcycle.
Explanation:
Higher masses resist the change in motion greater than smaller ones.
Help quickly…
As a person travels due east, the altitude of the North Star
(1) decreases
(2) increases
(3) remains the same
East or west: it remains the same.
North: it increases.
South: it decreases.
At the North pole: it's straight up over your head.
At the equator: it's on the horizon, north of you.
South of the equator: it's below the horizon and you can't see it at all.
The brain is not a muscle, like the heart, that can be worked and built. Which BEST explains why a consistent exercise regime has a positive
impact on the brain?
ОА. .
Exercise generally requires a lot of thinking.
ОВ.
Exercise can eliminate all of the impact of stress.
OC.
Exercise helps maintain and create pathways in the brain.
OD.
Exercise is the only way to moderate the hormones that control the brain.
Regular exercise has a positive impact on the brain, and the best explanation for this is that exercise helps maintain and create pathways in the brain (Option C).
1. The brain is a complex organ composed of billions of nerve cells called neurons. These neurons communicate with each other through pathways, forming a vast network.
2. When we engage in physical exercise, it increases blood flow to the brain. This enhanced blood flow delivers more oxygen and nutrients to the brain cells, promoting their overall health and functioning.
3. Exercise also stimulates the release of various chemicals in the brain, such as neurotransmitters and growth factors. These substances play a crucial role in the growth, development, and maintenance of brain cells.
4. Additionally, regular exercise has been found to promote the formation of new connections between neurons, a process known as neuroplasticity. These connections, also called synapses, are essential for learning, memory, and overall cognitive function.
5. By engaging in consistent exercise, individuals can enhance neuroplasticity, allowing their brains to adapt and reorganize in response to new experiences and challenges.
6. Moreover, exercise has been shown to reduce the risk of age-related cognitive decline and neurodegenerative diseases, such as Alzheimer's disease. It may also help improve mood, reduce stress, and enhance mental well-being.
7. In summary, while the brain is not a muscle that can be directly exercised, regular physical exercise positively impacts the brain by promoting neuroplasticity, improving blood flow, releasing beneficial chemicals, and reducing the risk of cognitive decline.
Therefore, the best explanation for why a consistent exercise regime has a positive impact on the brain is that exercise helps maintain and create pathways in the brain (Option C).
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Paolo says that his bicycle is hard to pedal.Mia looks at the bicycle and tells him he needs to oil the chain.explain why oiling the chain would help paolo
Answer:
Less friction
Explanation:
Paolo's bike is too difficult to pedal because there is too much friction in the mechanisms of the bike. To reduce friction, Paolo must oil the chain. This will make the bike run much more smoothly and allow for easier pedalling.
heyyyyyyyyyyyyyyyyyy
Answer:
yes
Explanation:
Peter’s teacher tells him that he should not place his electric stereo near the edge of a pool because the water in the pool is a conductor. What does she mean when she says that the water is a conductor?
a
Water is a type of electrical energy.
b
Water damages electric circuits.
c
Electric charges cannot flow without water.
d
Electric charges move through the water in the pool.
Answer:
D- Electric charges move through the water in the pool.
Explanation:
I got it right on my test