Calculate the gravitational potential energy of 3kg book sitting on shelf 4m high
Answer:
i know it i know it pick me
Explanation:
Answer:
nope loser
Explanation:
PLEASE HELP ME, ILL GIVE BRAINLIEST
Which image is a correctly labeled prokaryotic cell?
Answer:
I believe it's the bottom left :)
Explanation:
Helpppp! This assignment is due in 15 minutes . Click the photo attached.
Answer:
1: 6.637e-13 N
2: 6.637e-09 N
3: 1.335e-08 N
4: 1.335e-08 N
5: 1.456e-06 N
6: 5.839e-07 N
7: 6.673e-11 N
I'd suggest double checking these if you can.
Explanation:
Each of these you can answer by plugging the numbers into the equation
[tex]F = G\frac{m_1 m_2}{r^2}[/tex]
G is the gravitational constant 6.673×10⁻¹¹ N m² / kg²
So the first one would be:
[tex]F = 6.673 \times 10^{-11} \frac{Nm^2}{kg^2} \times\frac{1kg\times 1kg}{(10m)^2}\\F = 6.673 \times 10^{-11} N \times\frac{1}{100}\\F = 6.673 \times 10^{-13}N[/tex]
I'm not going to run through showing all calculations for the rest, as you're in a rush, so to whip through them
2: 6.637e-09 N
3: 1.335e-08 N
4: 1.335e-08 N
5: 1.456e-06 N
6: 5.839e-07 N
7: 6.673e-11
Pardon the lack of superscript, I just punched these into a python console to calculate them.
1. When is the kinetic energy of an electron transformed into potential energy?
when it interacts with other electrons, decreasing its speed
when it interacts with other electrons without changing its speed
2. Atoms bond to form molecules. Which structures or regions of the atoms interact in these bonds?
electric fields of particles with no charge
electric fields of particles with negative charge
electric fields of particles with opposite charges
3. In particle accelerators such as the one shown, fields are employed to separate different subatomic particles. What type or types of fields are employed, and what characteristics do these particles need to have in order to be separated?
Both electric and magnetic fields are applied. Particles need to be charged.
Electric fields are applied. Particles need to come from the same type of atom.
4. If two electrons that are apart get pushed toward each other, how does the repulsion between them change?
Initial repulsion is high and increases as they approach.
Initial repulsion is low and decreases as they approach.
Initial repulsion is high and decreases as they approach.
Initial repulsion is low and increases as they approach.
Answer:
1.) when it interacts with other electrons, decreasing its speed
Explanation:
2.) electric fields of particles with opposite charges
3.)Both electric and magnetic fields are applied. Particles need to be charged.
4.)Initial repulsion is high and increases as they approach.
5.)5.6×10^2 N
The correct options shown below,
1. When it interacts with other electrons, decreasing its speed
2. Electric fields of particles with opposite charges
3. Electric fields are applied. Particles need to come from the same type of atom.
4. Initial repulsion is high and increases as they approach.
The kinetic energy of an electron transformed into potential energy . when it interacts with other electrons, decreasing its speed The Atoms bond to form molecules. the structures which interact in these bonds is, electric fields of particles with opposite charges. In particle accelerators such as the one shown, Electric fields are applied and Particles need to come from the same type of atom. When two electrons that are apart get pushed toward each other, the Initial repulsion is high and increases as they approach.Learn more:
https://brainly.com/question/12337396
A gardener uses 1600 J of work to push a wheelbarrow for 45 seconds. How
much power does she use?
O A. 35.6 W
O B. 69.7 W
O C. 29.2 W
O D. 43.8 W
Help please!!!!
Answer:
35.6
Explanation:
given
workdone=1600J
time taken(t)=45 sec
power=w/t
=1600/45
=35.6 watt
"Younger teens often brag about a lack of sleep, but that usually stops when they get older. Why do you think that is?"
as we grow up we kinda experience some age staging so a teen got a lotta stuff going on they wanna be social active they be working on their popularity. so i guess thats it
A picture hangs evenly from two wires of equal length. The wires each make an angle of 45 degrees with the ceiling. If the mass of the picture is 6 kg, what is the tension force on each wire? Report your answer to 3 decimal places. Do not include the units in your answer or the computer will mark the problem wrong.
Answer:
41.578N
Explanation:
What is the name of the following atoms?
a) An atom with 3 protons and 4 neutrons:
b) An atom with 2 protons and 4 neutrons:
c) An atom with 4 protons and 4 neutrons:
Answer:
an atom with 3 protons and 4 neutrons
Explanation:
How much force is needed to accelerate a 1400-kg car 2 m/s?
Answer:
2800N
Explanation:
Given parameters:
Mass of car = 1400kg
Acceleration = 2m/s²
Unknown:
Force on the car = ?
Solution:
To solve this problem, we use Newton's second law of motion.
Force = mass x acceleration
So;
Force = 1400 x 2 = 2800N
A car has a mass of 1000 kg and a momentum of 12 000 kg m / s.
What is its kinetic energy?
Answer:
It's 7.2 x 10^10
I got that because I've put that into the calculator
but just transform it into a standard form = 72000000000
How does convection create wind patterns at a beach? A. The Sun heats the water and the land equally during the day, but at night heat from the land rises, causing warm air over the water to rush toward shore. B. Electromagnetic waves from the Sun are absorbed in Earth's atmosphere, which is warmed and then reemits the heat as electromagnetic waves. C. Increasing temperature means greater kinetic energy, and the kinetic energy shows itself as movement of the air molecules. D. During the day, air over the warm land heats up and rises, while cooler air that was over the water is drawn in to shore to replace it. SUBMIT
Answer:
D. During the day, air over the warm land heats up and rises, while cooler air that was over the water is drawn in to shore to replace it.
Explanation:
Convection creates wind patterns at a beach by the force of land and sea breeze which are different wind patterns that move air masses.
Convection is a form of heat transfer that occur mainly in fluids such as gases and in liquids.
During the day, the air over the land is warmed. The land is a good conductor heat better than the ocean. This air masses rises and move towards the ocean. The colder air from the ocean moves landward to replace this air mass.
As the cold air gets warmer at land, it rises and move ocean-ward again.
The model above shows sunlight that is directly hitting one side of the earth during its winter season. Which sentence explains why this area is experiencing shorter hours of daylight
Answer:
During winter time the northern hemisphere leans away from the sun due to the rotation of earth and due to this change the sunlight is not direct on these areas instead it is spread and due to this the shadows are longer and the sunlight is not intense. The earths rotation around the sun causes the seasons to change and that is why we experience shorter hours of daytime.
Explanation:
During winter time the northern hemisphere leans away from the sun due to the rotation of earth and due to this change the sunlight is not direct on these areas instead it is spread and due to this the shadows are longer and the sunlight is not intense. The earths rotation around the sun causes the seasons to change and that is why we experience shorter hours of daytime.
two reactants X and Y , are combined and form a new substance with a mass of 375g. the mass of reactant X is 300 g. what is the mass of reactant Y?
Answer:
75g
Explanation:
Given parameters
Mass of product = 375g
Mass of reactant X = 300g
Unknown:
Mass of reactant Y = ?
Solution:
To solve this problem, we need to understand the law of conservation of mass. The law states that "matter is neither created nor destroyed in a chemical reaction".
So;
Mass of X + Mass of Y = Mass of product
Mass of Y = Mass of product - Mass of X
Mass of Y = 375 - 300 = 75g
What type of energy is due to motion potential energy or kinetic energy
Answer:
Kinetic Energy
Explanation:
Potential Energy is where something is building up energy to move.
Answer:
Kinetic Energy
Explanation:
Help!!! i'll mark brainliest
If I stretch a standard rubber band (mass of 0.01 kg, spring constant of 40 N/m) 0.25 meters, how high would it launch into the air?
Answer:
You have a hooks law problem F=kx Where F= (40 N/m)× (0.25 meters) F= 10 N Hence the force is 10 NAnswer: The answer would be 12.5 m
What 4 pieces of information should be included any time you give a written
description of motion?
Answer:
In physics, motion is the phenomenon in which an object changes its position over time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, speed, and time. ... One can also speak of motion of images, shapes, and boundaries.
Explanation:
Not a assignment question, just wanna know if scientists know what’s beyond the edge universe
Which statement is true? A. Inertia causes bodies to slow in their motion, unless they’re pushed by a force. B. Inertia resists changes to the state of motion of a body. C. Inertia decelerates a body. D. Inertia is due to friction.
Answer:
B. Inertia resists changes to the state of motion of a body.
Explanation:
From the given choices, it is true that inertia resists changes to the state of motion of a body.
Inertia is a form of force solely dependent on the weight of a body. This quantity defines the native ability of a body to resist changes in motion.
According to Newton's first law, the concept of inertia is even more clearly defined.
The law states that "an object will remain in a state of rest or of uniform motion unless it is acted upon by an external force" .
Question 3
A mover pushes a box with 400N a distance of 3m in 55s.
a -Calculate the work:
b- Calculate the Power
Answer:
1200J
21.8Watts
Explanation:
Given parameters:
Force = 400N
Distance = 3m
Time = 55s
Unknown:
Work done = ?
Power = ?
Solution:
Work done is the force applied to move a body through a certain distance.
Power is the rate at which work is done
Work done = Force x distance = 400 x 3 = 1200J
Power = [tex]\frac{work done }{time}[/tex] = [tex]\frac{1200}{55}[/tex] = 21.8Watts
A hurdler is 0.635 m from a hurdle when he jumps at 3.22 m/s at a 62.9 degrees angle. How many seconds later does he clear the hurdle? (Hint: it is not necessarily at the highest point in his motion.) (Unit = s) Watch sig figs.
Answer:
Explanation:
The horizontal distance of the hurdle = .635 m
This distance is covered by hurdler by horizontal component of his velocity
horizontal component of hurdler's initial velocity = 3.22 x cos 62.9
= 1.4668 m /s
displacement in horizontal direction = .635 m , acceleration = 0 as no force acts in horizontal direction .
So time taken to clear the hurdle
= .635 / 1.4668 s
= .433 s .
Which kind of cycle is the rock cycle-one with a set path or one with many possible paths? Construct an explanation that describes at least two possible changes to a rock.
Please? thank you
Answer:
Every rock is somewhere in the rock cycle. The story of the rock is the story of rock cycle: where the rock is now on the rock cycle, the path it took on the rock cycle to get to where it is now, and the path on the rock
Explanation:
This is the answer i put it and it worked if it didn't work for you that's because you lesson or teacher was doing it in a different way.
Answer:
The rock cycle, illustrated in Figure below, depicts how the three major rock types – igneous, sedimentary, and metamorphic - convert from one to another. Arrows connecting the rock types represent the processes that accomplish these changes.
Explanation:
Compared to yesterday, you did three times the work in one-third the time. To do so, your power output must have been
a. the same as yesterdays power output
b. one-third yesterdays power output
c. three times yesterdays power output
d. nine times yesterdays power output
Answer:
D. nine times yesterdays power output
Explanation:
We know that formula for power with work is;
Power = workdone/time taken
Now, you did three times the work in one-third the time yesterday.
This means that;
Work yesterday; W_yesterday = W
Work today; W_today = 3W
Time yesterday; T_yesterday = t
Time today; T_today = t/3
Thus,power today is;
P_today = 3W/(t/3)
P_today = 9(W/t)
Since power output yesterday is W/t, it means you did nine times yesterday's power output.
Answer:
D
Explanation:
Nine times yesterday's power output.
Why is the terminal velocity of a 1 g lead pellet higher than that of a 1 g piece of paper?
Mr. Rosa’s foot has an area of 0.4 meters squared. His kick can generate pressure up to 3567 Pa. How much force does one kick from Mr. Rosa create?
Known:
Unknown:
Plug it in:
Answer:
Answer:
1426.8 N
Explanation:
Pressure, P = 3567 Pa
The area of Mr. Rosa’s foot, A = 0.4 m²
We need to find the force does one kick from Mr. Rosa create. The pressure acting due to force is given by :
[tex]P=\dfrac{F}{A}[/tex]
where
F is force
[tex]F=P\times A\\\\F=3567 \times 0.4\\\\F=1426.8\ N[/tex]
So, the required force is 1426.8 N.
QUICK ITS DUE IN 6 MINUTES. create a scenario that applies the 3 laws of motion. Explain in complete sentences how each law if demonstrated
Answer:
In the first law, an object will not change its motion unless a force acts on it. In the second law, the force on an object is equal to its mass times its acceleration. In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction.
Please Help Me!!!...........
Select all that apply.
Check all that characteristics of zebra mussels.
Question 2 options:
the size of a hand
lives in cool water
can attach to any surface
filter feeders
Answer: 1 and 3
Explanation:
A car is traveling east at a speed of 25 m/s. It then takes
5 seconds to a stop at a red light (final velocity=0 m/s).
What is the acceleration of the car?
Answer:
-5m/s²
Explanation:
Given parameters:
Initial velocity = 25m/s
Time = 5s
Final velocity = 0m/s
Unknown:
Acceleration of the car = ?
Solution
The acceleration of a body is the rate of change of the velocity of the body with time.
Acceleration = [tex]\frac{Final velocity - Initial velocity }{time}[/tex]
So;
Acceleration = [tex]\frac{0 - 25}{5}[/tex] = -5m/s²
The car is decelerating at a rate of 5m/s²
A 60 kg skydiver steps out of an airplane. A gravitational force of 588.6N is exerted on the skydiver. 1) calculate the acceleration of the skydiver using Newton's second law a= f/m 2)is the acceleration what you expected
Answer:
9.81m/s²
Yes, the acceleration is as expected because the diver is falling under gravity
Explanation:
Given parameters:
Mass of skydiver = 60kg
Gravitational force = 588.6N
Unknown:
Acceleration of the diver = ?
Solution:
To find the acceleration of the diver, we use the Newton's second law of motion which is expressed as;
Force = mass x acceleration
Acceleration = [tex]\frac{Force }{mass}[/tex] = [tex]\frac{588.6}{60}[/tex] = 9.81m/s²
Yes, the acceleration is as expected because the diver is falling under gravity
Which of the following is a type of energy that reaches the Earth from the Sun?
A.
ultraviolet light
B.
infrared light
C.
visible light
D.
all of these
Answer:
D
Explanation:
visible and invisible wavelengths