Answers
Explanation:
a) E= fs
b) 2E = mv²
c) E= Mc ²
Related Questions
Which of the following is an example of chemical change?
A. Filling up a balloon with hot air.
B. Taking a glass of water and freezing it by placing it in the freezer.
C. A plant collecting sunlight and turning it into food.
D. Your dog ripping up your homework.
Answers
Answer:
c
Explanation:
all the others r physical
New chemicals are being formed, which indicates a chemical change.
As altitude increases in the troposphere and stratosphere, the air temperature does what?
A. decreases in the troposphere and increases in the stratosphere.
B. Decreases in both places.
C. Increases in the troposphere and decreases in the stratosphere.
D. Increases in both places
Answers
Answer:
1
Explanation:
The correct answer is decreases in the troposphere and increases in the stratosphere.
How does altitude affect the troposphere?For this reason, the density of gases decreases as the distance from Earth's surface increases. Put another way, air pressure (i.e., density) decreases as altitude increases.
How can altitude affect the temperature of a place?The temperature of a place decreases with increasing altitude from the earth's surface.
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Pls help this is due today.
Beyonce weighs 500 N and is sitting at one end of a see-saw which is 4 m long and balanced in the middle. Jordan is 2000 N. Where should she sit in order to balance the see-saw?
Answers
Answer:
11 moments docx has the answer
Explanation:
HELP + extra pts // Two 10-m high diving platforms are at opposing ends of a 30-m pool. How fast must two clowns run straight off their boards if they want to collide at the middle of the pool and the surface of the water?
Answers
Explanation:
The clowns need to leave the diving boards with enough horizontal velocity such that each travels 15 m (half the width of the pool) in the same time that they fall (vertically) the 10-m from the top of the diving board.
We'll assume no force acts on the clowns horizontally to slow them down while they are in flight. And we'll assume that only gravity acts on the clowns vertically.
We can treat the horizontal and vertical components separately. This will help simplify the problem.
Let's start with the vertical displacement. Let's say the clown is dropped from a height of 10-m. How long would it take them to fall that distance?
Using our equations of motion (with constant, linear acceleration), we can solve for this time. [tex]d = vt + \frac{1}{2} at^2[/tex]
Where d is the distance travelled, v is the initial velocity, a is acceleration, and t is time.
If the clown is dropped, they have an initial velocity of 0 (zero). We assumed only gravity acts on the clown, so acceleration equals the gravitational acceleration on earth. [tex]a = 9.8m/s^2[/tex]
The distance the clown travels is 10-m from the diving board to the surface of the water.
Let's solve. [tex]10 = 0*t + \frac{1}{2} (9.8) t^2 \rightarrow 20/9.8 = t^2 \rightarrow t = \sqrt{20/9.8}[/tex]
Now that we know time, we can calculate how fast the clown needs to be running when they leap from the diving board to cover a distance of 15-m (Remember, half the width of the pool.)
Using our equations of motion, we know that [tex]d = vt + 0.5at^2[/tex]
We assumed no forces act horizontally on the clown, therefore a = 0. We just need to solve for v. Substituting in the time we just solved for, we get something like this. [tex]15 = v \sqrt{20/9.8}[/tex]
I'll leave it to you to solve this equation.
An employee was watching Jessica, an IT employee, typing in many different confusing terms. Jessica explained that she needed to fix the code and test a couple of programs before she could train the employee on how to use the software. Which IT career would be responsible for these tasks?
Network Systems
Programming and Software Development
Information Support and Services
Interactive Media
Answers
Answer:
B.) Programming and Software
Explanation:
Answer on Edge
Answer:
its B
Explanation:
Mr. White drops a bowling ball and a feather from the top of the Washington Monument.
a) Which will hit the ground first? Why?
b) If Mr. White were to repeat this experiment inside a vacuum chamber, which would hit the ground first? Why?
If you can provide some explanation I would greatly appreciate it! :)
Answers
Answer:
A) The bowling ball will hit the ground first. It is heavier, which has greater density, allowing it to reach the ground first.
B) Feather. If you want to be able to blow a bowling ball in a vaccum cleaner, it's almost impossible since it's very heavy. If it's a feather, it would be easier as it's light and the air inside it is able to force it down.
Note: I haven't learnt physics at all yet, this is just an attempt. I'm in 7th grade currently and I will probably be taking physics sometime in 9th grade.
-CIVICS- Do you feel it is important to be civically engaged in your community? Why or why not?
Answers
Answer:
I feel it's important to be civilly engaged in my community because it gives me a sense of placement and home in my own community. It also allows me to feel that my voice is being heard and not ignored.
fill in the blanks (about force)
depends on _____ and _____
Answers
. Work done by a force depends upon force applied and displacement produced.
4. If the velocity of the particles is high, they will collide with each other with less force.
a. TRUE
b. FALSE
Answers
Answer:
7657
Explanation:
b. FALSE
If the velocity of particle is high then they will collide with each other with a greater force because their momentum will be high
What is force?force is a push or pull on a body .
What is momentum?Momentum is the product of mass and velocity,
More the velocity, higher will be the momentum.
since force is directly proportional to rate of change of momentum
F = Δp/Δt
so on when bodies having higher velocities collide their rate of change of momentum is higher hence more will be the force
To know more on force here
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9. If the frequency of a certain light is 3.8 x 1024 Hz, what is the energy of this light?
Answers
Answer:
E=hf
Were, h = Planck constant 6.67*10^11
E=3.8*10^24 * 6.67*10^11= 2.508*q0^36j
Because of the costs involved in maintaining high temperatures and pressure, nuclear method for generating electrical energy. is not yet a practical Which best completes the statement?
Answers
Answer:
Fusion or energy because I had that question in my school so I wrote it in my notes book so it fusion or energy I don’t now hop this help you
Explanation:
Which of the following best demonstrates Newton's Third Law?
Question 3 options:
The harder you kick a soccer ball, the faster it accelerates
An object sitting on the ground will stay there until somebody or something pushes it
Wearing a seatbelt prevents you from continuing to move when the car has stopped
When you walk your foot pushes down on the ground while the ground pushes back on your foot
Answers
Answer:
when you walk your foot pushes down on the ground, while the ground pushes back on your foot
Explanation:
it was another brainly question, Goodluck :)
Can any one here form light from lemon?
Answers
Answer:
I did not get it
Explanation:
what u r saying
Heat is an exchange of internal energy from one system to another due to
OA.
one system being liquid and the other being solid.
OB.
the systems having the same temperature.
OC.
one system being gas and the other being solid.
OD
a temperature difference between the systems.
Answers
Answer:
OD
Explanation:
2 bodies should have different temperatures for energy to be transferred
Cyclist 1 pedals 40 kilometers east in 2 hours. Cyclist 2 pedals 10 kilometers west in half an hour. Based on this information, which statement about cyclists is correct?
Answers
Answer:
See Explanation
Explanation:
Given
Cyclist 1:
[tex]Distance = 40km[/tex]
[tex]Time = 2hr[/tex]
[tex]Direction = East[/tex]
Cyclist 2:
[tex]Distance = 10km[/tex]
[tex]Time = 0.5hr[/tex]
[tex]Direction = West[/tex]
The question requires options. Since none is given, I'll answer on a general term.
First, calculate the speed of both cyclists
[tex]Speed = \frac{Distance}{Time}[/tex]
Cyclist 1:
[tex]Distance = 40km[/tex]
[tex]Time = 2hr[/tex]
[tex]Speed = \frac{40km}{2hr}[/tex]
[tex]Speed = 20km/hr[/tex]
Cyclist 2:
[tex]Distance = 10km[/tex]
[tex]Time = 0.5hr[/tex]
[tex]Speed = \frac{10km}{0.5hr}[/tex]
[tex]Speed = 20km/hr[/tex]
The following can be deduced from above:
Both cyclists travel at the same speed of 20km/hrBoth cyclists travel in opposite directions
What forces act to pull the poles of a magnet together, or to push them apart?
Answers
Answer:
Gravity,
I hope this correct
Urgent! Which is not an example of work? Question 2 options: pushing a box across the floor picking up a box off the floor raising a barbell over your head trying to push a rock that never moves
Answers
Answer:
trying to push a rock that never moves
Explanation:
When two forces exerted on an object are balanced, the object
Answers
Answer: Will not accelerate.
Explanation: When all the forces acting upon an object balance each other, the object will be at equilibrium; it will not accelerate.
Which of the following correctly represents an element?
A Water - H20
B Copper - Cu
C Carbon monoxide - CO
D Salt - NaCl
Answers
Answer:
A water H2O
Explanation:
H2O is composed of 2 hydrogens which is represented H2 and the hydrogen is combined with one oxygen which forms water which is H2O
describe nucleus (animal) in your own words(20 points)
Answers
Answer:
The nucleus is a highly specialized organelle that serves as the information and administrative center of the cell. ... Most of the nuclear material consists of chromatin, the unstructured form of the cell's dna that will organize to form chromosomes during mitosis or cell division.
Explanation:
A person’s blood type depends on the type of protein marker, called an , found on the cell membranes of the red blood cells.
Answers
A person’s blood type depends on the type of protein marker, called an Antigen, found on the cell membranes of the red blood cell.
What is antigen?A molecule known as an antigen is one that triggers the formation of an antibody and the immune system's response.
Large protein molecules known as antigens are found on the surface of pathogens like bacteria, fungi, viruses, and other foreign substances. When these dangerous substances enter the body, the body's immune system reacts by producing antibodies.
The ABO system distinguishes 4 major blood types:
Blood group O - has no antigens, but both anti-A and anti-B antibodies in the plasma. Blood group AB - has both A and B antigens, but no antibodies.Blood group A - has A antigens on the red blood cells with anti-B antibodies in the plasma. Blood group B - has B antigens with anti-A antibodies in the plasma.Learn more about antigen here:
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Example of kinetic to potential ? And how the energy is changing forms???? Please help
Answers
Answer:
A ball when from moving to stoping
Explanation:
Kinetic = energy of motion
Potential = energy stored
When you roll a ball on the ground, it gains kinetic energy, but then the ball starts to slow down until it stops and it remains at rest which means it's at potential energy. It went from moving (kinetic) to stoping (potential)
Hope this helped!
Have a supercalifragilisticexpialidocious day!
Define potential energy (PE)
Answers
How is velocity different from speed? Based on distance and/or direction
Answers
Answer:
Speed is solved with time and distance but has no direction
Average velocity is solved with Δx/Δt and has a direction
Which circuit element controls the flow of current?
Answers
Answer:
REGULATOR
Explanation:
Hi, I have a question if I calculate the average force that must be exerted on a 0.145 kg baseball for me to give it an acceleration of 130 m/s2. How would I get I get the acceleration would I divide 130 by 0.145 kg to get the acceleration?
Answers
F = 0.145 * 130
You would multiply to find the force required, not divide. Hope this helps!
Think about the types of forces holding the atoms together in different chemicals. Are there any patterns that can be drawn from the data? Explain.
Answers
Hello. You did not enter the data to which this question refers, which makes it impossible for it to have an exact answer. However, I will try to help you in the best possible way.
The forces that hold the elements together are called intermolecular forces. They are formed by covalent bonds between the molecules and can be called: dipole-induced (occurs between nonpolar molecules that have a negative pole and a positive pole) and dipole-dipole (occurs between polar moileculas, except when hydrogen is present).
hii please help i’ll give brainliest if you give a correct answer please
Answers
can you please explain hooks law?
Answers
Explanation:
Hooke's law is a law of physics that states that the force needed to extend or compress a spring by some distance scales linearly with respect to that distance—that is, Fₛ = kx, where k is a constant factor characteristic of the spring, and x is small compared to the total possible deformation of the spring.
Whoever could answer this I would make Brainliest
Answers
Answer:
1. the rocks at the bottom of the aquarium
2.the fish and maybe the plants (if you use live plants)
3. fish interact with there no living things like how one would hide in the grass or something like that.
4. decorations (like a cave or fake house, tho the aquarium its self is a home)
5.they would die, and rot.
Explanation:
rocks are nonliving
fish are living things and so are plants
fish can hide in the plants
the fish can "live" in the decorations, but the aquarium itself is its home.
if something reaches the end of its life span it dies.
