What is radiant energy emmited by the sun
Answer:
Solar radiation is radiant energy emitted by the sun, particularly electromagnetic energy.
Answer:
the earth because us humans all live there and do many things like excercise jobs cleaning and other things
Why does the layer of glass in a solar cell need an antireflective coating?
A. To maximize the energy absorbed by the solar cell
B. To help the cell conduct the charge that is produced
C. To give the layer a negative charge
D. To give the layer a positive charge
the answer is A
Answer:
The Anti Reflective Coating on a solar cells helps to increase the amount of light absorbed into the cell. This anti reflective coating is very much needed as the reflection of a bare silicon solar cells is over 30%. For the thin AR Coating, silicon nitride or titanium oxide is used.
Explanation:
hope this help:)
Which of the following is an example of facilitated diffusion?
Kerry drops her iPhone accidentally as she is standing on an overlook. How fast is the iPhone moving after 3 seconds?
Answer:
29.4 m/s.
Explanation:
v=gt=9.8⋅3=29.4
I believe this is correct... If not, close.
Question 12 (2 points)
Which elements are least reactive?
metals
halogens
actinides
noble gases
Answer:
noble gases
Explanation:
What would you have loved to press the pause button on so you could go deeper
Answer:
~Banana Fish~
Which of the following is the potential energy of a roller coaster cart with a mass of 250 kg as it sits atop the hill 20 m high before beginning the drop back downward at 5 m/s?
a
25000 J
b
1250 J
c
5000 J
d
49000 J
Answer:250000
Explanation:
Which three rocky planets have atmospheres
Total distance does not take into account the direction of the object, but displacement always includes direction.
Question 1 options:
True
False
Heart Rate During Aerobic Activity?
Answer:
It is recommended that you exercise within 55 to 85 percent of your maximum heart rate for at least 20 to 30 minutes to get the best results from aerobic exercise. The MHR (roughly calculated as 220 minus your age) is the upper limit of what your cardiovascular system can handle during physical activity.
(I think) ¯\_(ツ)_/¯
The image shows how the moon looks during the lunar cycle. The moon will look this way again in about ?
Choose all the answers that apply.
There are no cures for what diseases?
ALS
Parkinson's disease
diabetes
Alzheimer's disease
pls help asap
There is no cure for any of those. However you can contain the symptoms with medications
Answer:
All of them except diabetes
Explanation:
Total distance does not take into account the direction of the object, but displacement always includes direction.
Question 1 options:
True
False
Answer: True
Explanation:
Distance is a scalar, which means it has no direction. It is the sum of the entire path traveled.
Displacement is a vector, which means it does have direction. It is the shortest path from the start to the end. It is defined as [tex]x_f-x_i[/tex].
What work is done when a person lifts a 1.6 kg package and places it on a shelf 2.4m high?
Answer:
Explanation:
Work is the dot product of force and distance
[tex]W = F*d=Fd*\cos(theta)[/tex]
The only force acting on this box is the force of gravity (weight) which is mass*gravity
F = (1.6)(9.8) = 15.68N
The angle is the angle between the force and distance. In this case it is zero, therefore cos(Ф) = 1
[tex]W=15.68*2.4=37.6J[/tex]
convert 35 km/h to m/s
The Sankey diagram below shows the energy transfers in a computer. 100 J of energy are input. It is carried to the computer by
What one word completes the sentence?
Many people love roller coasters. Some people call them scream machines. They agree that
riding a roller coaster is a thrilling experience. What you may not realize while you are going 60 miles an hour is that a roller coaster has no
engine. You are not being propelled around the track by a motor or pulled by anything. A roller coaster moves on its own. How do you think that
can happen?
Answer:
There is some sort of "rollers" on the trail part that is used to make the roller coaster move when it is going up. Then because of that, the speed gets quicker when it drops down, so then it could move for a longer time until it reaches the next arch.
Explanation:
hope this helps :)
A geologist sees a fault along which blocks of rock in the footwall have moved higher relative to blocks of rock in the hanging wall. What type of fault is this? Explain how you know.
Answer: Normal fault
Explanation:
The type of fault that is explained above is a normal fault. We should note that normal faults typically takes place in a divergent boundary in a scenario where the crusts may have been pulled apart.
Since the crust is pulled apart in this case, it leads to the downward movement of the hanging wall which leads to the football being above the hanging wall.
Please solve!!! Thank you
Answer:
This is easy
Explanation:
Ok so you pick a element on the physics table and put the protons, electrons, and neutrons
5. What causes the movement of tectonic plates?
Answer:
The heat from radioactive processes within the planet's interior causes the plates to move, sometimes toward and sometimes away from each other. This movement is called plate motion, or tectonic shift.
Explanation:
And tension
What is nuclear energy
Describe the kinetic molecular theory
A student runs up a flight of stairs which info is not needed to calculate the rate of the student is doing work against gravity A the height of the flight of stairs B the length of flight of stairs C the time taken to run up the stairs D the weight of the student
Answer:
B.
Explanation:
Given that a student runs up a flight of stairs which info is not needed to calculate the rate of the student is doing work against gravity A the height of the flight of stairs B the length of flight of stairs C the time taken to run up the stairs D the weight of the student
The rate of doing work is known as power.
Power = work done/time
Work done = energy = mgh
Since energy = mgh
Where mg = weight
And h = height
Time = time taken to run up the stairs.
Time, weight mg and height h will be needed while the Length of the flight is therefore not needed.
The correct answer is B.
Jenny loves puffed rice cereal. As she is pouring the cereal, two little
pieces of cereal each with equal charges of 1.85 x10-18 coulombs
fall into the bowl 0.025 meters apart. Use Coulomb's Law to find the
electrostatic force between them. (Remember, Coulomb's constant
is 8.99 x10° N*m2/C2)
A-4.9 x 1023 N
B-6.2x 10-15 N
C-9.0 x 10-3 N
D-2.5 x 10-23 N
Answer:
4.9 x 10-23 N
Explanation:
I took the test
Answer:
4.9 x 10-23
Explanation:
I just took the test too its
Which of the following is true regarding transverse waves?
A. They only occur when the medium is a solid.
B. The directions that energy and matter travel in are parallel.
C. A hockey puck moving forward and spinning on ice is an example of a transverse wave.
D. The directions that energy and matter travel in are perpendicular to one another.
The true statement regarding the transverse waves should be option D. the direction at which the energy and the matter should be travel in the perpendicular direction.
What are transverse waves?It is the waves where the motion in which all the points should be on the wave oscillate along the paths at the right angles with respect to the wave of the direction. The example of this kind of waves should be electromagnetic, etc. In this, the directions where the energy and the travel of matter should be perpendicular to each other
Hence, the correct option is d.
Learn more about waves here: https://brainly.com/question/21890036
A bowling ball has a mass of 50 kg and is traveling with a velocity of 18 m/s 4 points
down the lane. How much momentum does it have?
momentum= mass × velocity
p= 50×18
momentum= 900 kg m/s
How does Earth's movement affect how the Sun is seen? The Sun is stationary, but Earth's rotation makes it appear to move east to west across the sky. Earth's rotation around the Sun makes the Sun appear to move across the sky every 365 days. The Sun and Earth move around each other, so the Sun moves east to west across the sky. The Sun is stationary, but Earth's clockwise rotation makes it appear to move west to east across the sky.
Answer:
The manner in which the Earth's movement affect how the Sun is seen is;
The Sun is stationary, but Earth's rotation makes it appear to move East to West across the sky
Explanation:
The Earth's movement affect the way the Sun is seen
The Sun appears to rise in the Eastern part of the sky and continues in motion till the it sets at the Western part of the sky
However, the Sun does not actually move relative to the Earth as seen in the sky. The observed motion of the Sun is due to the counterclockwise rotation of the Earth about its axis
Therefore, the Earth's movement affect the way the Sun is seen by making the Sun appear to move across the sky from East to West
Answer:
The sun stays still but the rotation of the earth makes it look like it goes east to west.
Explanation:
The specific heat of aluminum is 0.90 J/g•°C and of iron is 0.45 J/g•°C. How much energy was absorbed by each 1-gram sample?
Answer:
The temperature of 1 gram of aluminum rises 5.6 C degrees and the temperature of 1 gram of iron rises 11.1 C degrees.
Answer:
He is right
Explanation:
the law of inertia states that an object in motion will stay in motion, and an object at rest will stay in rest unless acted upon by an unbalanced force which law of motion is this describing
Answer:
newton's first law of motion
Explanation:
this is because newton's first law of motion states that every object will continue in its state of rest or uniform motion in a straight line unless a resultant force acts on it so...
isn't this similar to the law of inertia?
yes it is
hope this helps
Molecular nitrogen (N2) has 14 electrons, so this
structure of N2 is correct and complete.
False
True