Answer:
Please find the answer in the explanation below.
Explanation:
Given that Alberto is on his daily commute. While texting, his car veers of the road and hits a tree, coming to a complete halt. As state law required, he was wearing a seatbelt, and walked away from the accident uninjured.
To use the concepts of momentum, kinetic energy, and force to explain why Alberto was able to walk away from the accident,
According to the Newton's second law of motion, the rate of the change in momentum is proportional to the force applied. that is,
F = ma
where
F = the force that caused the car to accelerate
m = mass of the car
a = the acceleration of the car.
As the car accelerated, the kinetic energy produced caused the car to hit the tree.
But according to the Newton's third law of motion, which state that;
in every action, there will be equal and opposite reaction.
The seat belt provided the reaction opposite to the action produced by the force. Which eventually halt the Kinetic energy of the person and prevented him from being getting injured.
Alberto was able to walk away from the accident because he had his seat belt on according to Newton's first law.
According to Newtons's first law of motion, an object will continue in its state of rest or uniform motion unless it is acted upon by an external, unbalanced force. This law is the reason why a passenger quickly moves forward when a car stops suddenly.
Alberto was able to walk away from the accident because he had his seat belt on which prevented him from being thrown out of the windscreen. The momentum and kinetic energy of the car is not conserved because the car sticks with the tree.
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could you guys tell me whether the photo represents a balanced or unbalanced equation
Answer:
that is preatty balenced m8
Explanation:
Complete the sentence to explain when waves interact.
Waves interact with
and other
Please help me! I will give brainiest answer to whoever responds within 5 minutes
Answer:
Waves interact with objects and other waves.
Explanation:
Which waves can travel through space?
OElectromagnetic waves only
OMechanical waves only
OElectromagnetic and mechanical waves O Longitudinal and electromagnetic waves
Answer:
A. electromagnetic waves only
Explanation:
brainliest please? :))
a) Electromagnetic waves only can travel through space
What are electromagnetic waves?Electromagnetic waves are the waves that are propagated by simultaneous period variation of electric and magnetic filed intensity .
Longitudinal wave and mechanical wave require a particular medium to travel , and in vacuum their is no medium that helps the waves to propagate because their is no particle present in vacuum . Hence , their is absence of any matter , wave cannot travel through it .
Because electromagnetic waves do not need molecule to travel and electromagnetic wave are transverse waves and they have oscillating magnetic and electric field thus do not need a medium to travel .
hence , correct option a) Electromagnetic waves only
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Describe what an aye of a storm does and look like?
Answer:
They are found at the center and are between 20-50km in diameter. ... The coriolis force deflects the wind slightly away from the center, causing the wind to rotate around the center of the hurricane (the eye wall), leaving the exact center (the eye) calm.
Explanation:
I used google!
Hope this helps :D
Suppose Person A runs off the edge of the cliff at 2 m/s and Person B runs off the edge at 1 m/s. Which will hit the ground farther from the base of the cliff?
Answer:
Person A will hit a distance fatherExplanation:
Based on the fact that the velocity of person A is more than that of person B, that is from the question, person A has a velocity of 2m/s and person B has a velocity of 1m/s, this clearly shows that person A has the tendency to hit a distance farther from the cliff than person B.
you are at the grand canyon standing at the edge of a ledge 1857 m high you have a mass of 61 kg. you decide to take a selfie to share with your science teacher when you get home which causes you to wonder how much gravitational potential energy do you have standing at the edge of this cliff
Answer:
1,110,114.6 J
Explanation:
The height is 1857m, the mass is 61 kg, and the accelaration is 9.8 m/s^2. Plug in the equation GPE=h*m*a and you get 1,110,114.6.
h= height
m= mass
a= accelaration
GPE= gravitational potential energy
If you are at the grand canyon standing at the edge of a ledge 1857 meters high you have a mass of 61 kilograms, then your gravitational potential energy at the edge of the cliff would be 1111247.37 Joules.
What is mechanical energy?Mechanical energy is the combination of all the energy in motion represented by total kinetic energy and the total potential energy stored energy in the system which is represented by total potential energy.
As total mechanical energy is the sum of all the kinetic as well as potential energy stored in the system.
ME = KE + PE
The total gravitational potential energy at the edge of the cliff would be
PE = m × g × h
PE =61 × 9.81 × 1857
PE =1111247.37 Joules
Thus, the total gravitational potential energy at the edge of the cliff would be 1111247.37 Joules.
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Neutrons have ____
- have positive charge
- are found in the nucleus
- orbit outside the atom
- are a special type of element
Answer:
opt B is correct
Explanation:
A cat walks 1.5km South and then 2.4km East. What is the total displacement of the cat?
skateboarding is life
Answer: Sure
Explanation:
1. Martha bought a six pack of soda on Thursday. She promised her neighbor, Mr. Jimmy, that she would save the cans for him. What are they doing to help our ecosystem?
Answer:
They are helping the ecosystem
Explanation:
They are helping the ecosystem by making sure those cans are going to be either
a) recycled properly
b) up-cycled for a project of some sorts
Can an object moving upward be in free fall?
Answer:
not if its moving upwards but eventually it will be on its way down
Explanation:
When water (H2O) freezes into ice, some of the properties have changed. What stays the same? identity of the H2O energy of the H2O arrangement of the H2O property of the H2O
Answer:
A: The identity of H2O
Explanation:
Got answer right on EDG
Answer:
identity of the H2O
Explanation:
identity of the H2O
Please help
How would you explain 2 m/s/s [1
(1 Point)
Enter your answer
what is food poisoning ?
Answer:
salmonella and from eating raw food
Explanation:
Answer:
Food Poisoning is bad very bad. You can get the following sicknesses: cramping, nausea, vomiting, or diarrhea. It usually comes from food that has a lot of Germs in it, Bacteria, Viruses, etc. But it is not usually something that can kill you, just go to your doctor and they might give you medicine to stop the Poisoning.
The steam coming off the pot of boiling water is an example of_______________
Answer: water vapor
Explanstion
When water is heated it evaporates, which means it turns into water vapor and expands. At 100℃ it boils, thus rapidly evaporating. And at boiling point, the invisible gas of steam is created. ... Those drops of water are called condensation
The steam coming off the pot of boiling water is an example of Water vapor.
Water Vapor
Water throughout a gaseous condition, particularly in the atmosphere and at temperatures lower than the boiling point. This same basic ingredient for cloud as well as rain production is water vapor throughout the environment.
It also serves to maintain the Earth's temperature by reflecting and dispersing solar energy as well as absorbing infrared heat from this same Planet.
Thus the response above is correct.
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What is the amount of displacement of a runner who runs exactly 2 laps around a 400 meter track?
At the end of the laps, the runner's displacement is zero.
A rock is thrown downwards from the edge of the Grand Canyon. With what velocity will it hit the donkey-riding tourist who is 40 m below?
One cell performs 120 oscillations per minute, the other 240. What will be the ratio of their lengths ( I translated it sorry for mistakes)
Answer:
360²
Explanation:
hoped this helped (ejfigueroa5 had the answer thank you to ejfigueroa5)
Which sentence describes Newton's first law?
Answer:
Options?
Explanation:
Answer:
Unbalanced forces cause in object to move. (apex)
Explanation:
Suppose the polar bear was running on land instead of swimming. If the polar bear runs at a speed of about 8.3 m/s, how far will it travel in 10.0 hours?
Answer:
298800 m
Explanation:
[tex]v = \frac{d}{t} [/tex]
V=speed
d=distance
t=time
[tex]d = vt[/tex]
Change hours to seconds
It will be 36000s
8.3m/s * 36000s
=298800m
Drag each label to the correct location on the table. Sort the units based on the measurement system they're used in. kilometer milligram inch kelvin Fahrenheit Ounce yard SI System US Customary System
Answer:
The correction is the state of mind being for the Fahrenheit that is calculator from anarchy
Explanation:
Answer:
Si system is :kilo miligram kelvin
us system is: Fahrenheit Ounce yard inch
Explanation:
I NEED HELP WITH THIS PHYSICS QUESTION
Answer:
im saying c but not sure if its right
Explanation:
Will the velocity of a book change as it moves across the surface with friction
Friction force is a force that opposes relative motion of two bodies that have contacting surfaces
Yes, the velocity of the book will change as it moves across the surface with friction
Reason:
According to Newton's first law of motion, a body will remain at rest or move with a constant speed in a straight line unless acted on by a force
Friction force, f = Normal reaction, N × Coefficient of friction, μ
A surface with friction has frictional force that opposes the relative motion of an object in surface contact across it
When an object such as a book moves across a surface with friction, the friction force acts on the book having a velocity, opposing the motion of the book, therefore, slowing down the book
Therefore, the velocity of the will change (reduce) as it moves across the surface with friction
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if you weigh 637 N on Earth's surface, how much would you weigh on the planet Mars?
Answer:
To get your answer multiply 637N by 10N/kg to get 6370kg
The mass of an object weighing 637 N on earth is 65 kg. The acceleration due to gravity on mars is 3.72 m/s². Then its weight on mars is 241.8 N.
What is gravitational force?The gravitational force is the force by which an object attracts other object into its center of mass. Earth attracts every objects into its surface and that is why we are all standing on the ground and experience a weight.
The acceleration due to gravity is the acceleration to the downward motion by gravitational force for an object. The weight of an object is the sum of its mass and acceleration due to gravity of the planet in which the object is placed.
The acceleration due to gravity of earth = 9.8 m/s²
then mass of person weighing 637 N = 637 N/9.8 m/s² = 65 Kg
acceleration due to gravity of mars = 3.72 m/s²
then weight of the mass 65 kg = 65 kg × 3.72 m/s² = 241.8 N.
Therefore, the person will weight 241.8 N at mars.
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_____ is a measure of the force of gravity pulling down on an object. it is measured in newtons (N), the common unit for measuring force
By definition, Weight is a measure of the force of gravity pulling down on an object. it is measured in newtons (N), the common unit for measuring force.
Weight is called the action exerted by the force of gravity on the body.
The mass (amount of matter that a body contains) of an object will always be the same, no matter where it is located. Instead, the weight of the object will vary according to the force of gravity acting on it.
The formula that allows you to calculate the weight of any body is:
P = m×g
where:
P = weight measured in N. m = mass measured in kg. g = acceleration of gravity measured in m/s². The acceleration of gravity g is the same for all objects that fall due to gravitational attraction, regardless of their size or composition. For example, as an approximate value on Earth, g = 9.8 m/s².
Then, the weight of an object is the force of gravity on the object, that is, the weight will vary according to the force of gravity that acts on it. So the correct answer is:
Weight is a measure of the force of gravity pulling down on an object. it is measured in newtons (N), the common unit for measuring force.
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brainly.com/question/15566515?referrer=searchResults brainly.com/question/15271930?referrer=searchResults brainly.com/question/4735812?referrer=searchResultsThe light rays in the illustration below do not properly focus at the focal point. This problem occurs with
A. all-spherical mirrors
B. all parabolic mirrors
C. only defective spherical mirrors
D. only defective parabolic mirrors
This problem occurs with C. only defective spherical mirrors.
Spherical mirrors can be either concave or convex, depending on their shape. A perfect spherical mirror is one that has a consistent curvature across its surface, which allows all the light rays that strike it to properly converge or diverge and focus at the focal point.
However, a defective spherical mirror is one that does not have a perfect curvature across its surface. This can happen due to manufacturing errors or damage to the mirror. When a spherical mirror is defective, the light rays do not properly focus at the focal point, leading to distorted or blurred images.
On the other hand, parabolic mirrors have a unique shape that allows them to reflect incoming light rays to a single focal point, providing a sharper and clearer image compared to spherical mirrors.
Therefore, the correct answer is C. only defective spherical mirrors, as they are the ones that do not properly focus the light rays at the focal point.
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What is step one of a star called?
Answer: Stage 1- Stars are born in a region of high density Nebula, and condenses into a huge globule of gas and dust and contracts under its own gravity. This image shows the Orion Nebula or M42 . Stage 2 - A region of condensing matter will begin to heat up and start to glow forming Protostars.
Explanation:
If toy weighs 19.6 newtons on earth, what is the mass of the toy?
Answer:
About 199.864 grams, 4.406 lbs.
Explanation:
A truck drives to a rock quarry at a speed of 20 m/s. The truck takes on a load of rocks, which doubles its mass, and leaves at the same speed of 20 m/s. Quantitatively compare the kinetic energy of the truck as it left the quarry with its kinetic energy on the way to the quarry. Explain your answer.
Given that,
A truck drives to a rock quarry at a speed of 20 m/s. The truck takes on a load of rocks, which doubles its mass, and leaves at the same speed of 20 m/s.
To find,
Comparison of the kinetic energy of the truck as it left the quarry with its kinetic energy on the way to the quarry.
Solution,
Kinetic energy of an object is given by:
[tex]K=\dfrac{1}{2}mv^2[/tex]
m is the mass of the truck
[tex]K=\dfrac{1}{2}m\times (20)^2\\\\K=200m\ J[/tex]
If mass is doubled and speed is same i.e. 20 m/s, neew kinetic energy is given by :
[tex]K=\dfrac{1}{2}\times (2m)\times 20^2\\\\K=400m\ J[/tex]
It can be seen that when mass of truck is doubled, its kinetic energy gets doubled.
Which planet has a density that is less than the density of liquid water?