Solar cells convert what type of energy into electrical energy?

Answers

Answer 1

Answer: In what must certainly rank as one of the most startling coincidences
in all of science and technology, the cells referred to as "solar" perform
their function by deriving electrical energy from the energy in "solar" radiation.

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Which pulley setup would decrease the amount of effort force needed to lift an objectA) two fixed position pulleys attached to a fixed point above the object that's being lifted B) one fixed position pulley attached to a fixed point above the object that is being lifted C) no pulleys just a string attached to an object that is being lifted D) one moving pulley attached to the object that is being lifted
Having some knowledge of psychology, you'll shine your shoes and "dress for success" before going to a job interview because you want to
Why is it important to define a frame of reference?a. An observer cannot be moving.b. Motion must be defined relative to something.c. It's impossible to measure motion.d. A stationary observer is always moving.
When a firecracker explodes, what types of energy does it give off?a. sound and light energy only b. potential and kinetic energy c. sound, light, and heat energy d. sound, light, and chemical energy
An electron released by a radioactive nucleus that causes a neutron to change into a proton is called

Which of the following best describes a plane? A. A curve in a road
B. The surface of a flat table
C. The edge of a desk
D. The point of intersection of two walls

Answers

Yes B, The surface of a flat table

You hear a thunder 3 seconds after you see lightning. How far away is the storm?

Answers

3 seconds (330 m) / second =
990 meter

Answer:

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Explanation:

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Which elements has the smallest first ionization energy?

Answers

Answer:

Cesium has smallest ionization energy.

Explanation:

Ionization energy is the energy that an atom at ground state must be absorb to release an electron to form a cation. for eg.

H ⇒ $H^(+) + e^(-)$

The unit of ionization energy is $(KJ)/(mol)$ .

The ionization energy is minimum for cesium & maximum for fluorine.

Ionization energy depends upon the radius of atom. cesium has smallest radius so it has low Ionization energy.

Therefore the cesium has smallest ionization energy.

The Pangaea theory supports the theory of plate tectonics because _____.it is based on the idea that there were several land masses when Earth was first created
it is based on the idea that all the present continents were one supercontinent
it does not require scientists to support the notion that Earth's plates can move
one day, Earth will have one large land mass again

Answers

The Pangea theory supports the theory of plate tectonics because it is based on the idea that all the present continents were one super-continent. For reasons still unknown, the super-continent got separated and created separate smaller continents. This theory also supports the fact that this movement will continue until the day arrives when all the smaller continents will again merge in a different configuration to create another super-continent.

Answer:

Explanation:

ITS RIGHT

The angle between the two vectors A=3i^+4j^+5k^ and B=3i^+4j^−5k^ will be: a. 90 degree b. 0 degree . 60 degree d. 30 degree

Answers

Answer:

Both vectors have the same X and Y components therefore

the angle between the two vectors is zero

(B) is correct

Potential and kinetic energy 1. An apple falling from a tree
2. A stationary ball on the ground
3. A sleeping dog
4. A boy running across the street
5. A car traveling on the road
6. A stretched rubber band
7. A basketball being thrown
8. A girl biking at the park
9. A leaf lying on the ground
10. A planet revolving around a star

Answers

Here's how potential and kinetic energy relate to the scenarios you've mentioned:

1. An apple falling from a tree: Kinetic energy increases as it falls, while potential energy decreases.

2. A stationary ball on the ground: No kinetic energy (it's not moving), but it has potential energy due to its position above the ground.

3. A sleeping dog: The dog has potential energy due to its position above the ground, but it's not in motion, so there's no significant kinetic energy.

4. A boy running across the street: The boy has both kinetic and potential energy. His motion represents kinetic energy, and his position above the ground while running represents potential energy.

5. A car traveling on the road: The car has both kinetic energy (due to its motion) and potential energy (due to its position above the road).

6. A stretched rubber band: The stretched rubber band has potential energy stored in its stretched configuration.

7. A basketball being thrown: The basketball has both kinetic energy (while it's in motion) and potential energy (when it's at the highest point of its trajectory).

8. A girl biking at the park: Similar to the boy running, the girl on the bike has both kinetic and potential energy.

9. A leaf lying on the ground: The leaf has potential energy due to its position above the ground, but it has little to no kinetic energy unless it's moving in the wind.

10. A planet revolving around a star: The planet has both kinetic energy (due to its orbital motion) and potential energy (related to its position within the gravitational field of the star).

In general, potential energy is associated with an object's position or state, while kinetic energy is associated with its motion.

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Viscous lidocaine 2% 30 mL Maalox (do not substitute Kaopectate) 60mL Diphenhydramine (use on hand stock 12.5mg/5mL elixir) 75 mg Carafate 1gm/10mL 40 mL The doctor wants the patient to use a daily dose of 2 teaspoons. How many doses are in the final product?

From what is known about spring tides and neap tides, you can conclude that:_________. a. the sun’s gravity exerts the most power when the moon is on the opposite side of the Earth from the sun. b. the height of high tides varies with the phases of the moon. c. spring tides and neap tides affect the phases of the moon. d. the moon revolves around the Earth every 14 days. Please select the best answer from the choices provided

What is the difference between mechanical waves and electromagnetic waves?

If you are over-driving your headlights and you see an object ahead, you will_____. be given the right-of-way from other vehicles not be able to stop in time to miss the object need to execute a high-speed U-turn be able to stop, but may graze the object.