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Arisa [49]
4 years ago
8

20 point physics question! :D

Physics
2 answers:
Sauron [17]4 years ago
8 0
B, Light, mechanical. The solar panel takes in light energy (from the sun), and in exchange spits out mechanical energy (turns the wheels/powers the battery).
Colt1911 [192]4 years ago
3 0
Quite simple, actually,

Solar means that it's from the sun. (Sunlight into electricity)

So, answer choices C and D are eliminated. Leaving A and B.

Chemical means it's powered by gas, etc.

So it wouldn't make sense, A solar powered car converts light energy into chemical energy. The car is solar powered.

Leaving, B, as the only logical answer.

A solar powered car converts light energy into mechanical energy.
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A bee wants to fly to a flower located due North of the hive on a windy day. The wind blows from East to West at speed 6.68 m/s.
Aleonysh [2.5K]

Answer:  53.31\° East of North

Explanation:

We have the following data:

Speed of the wind from East to West: 6.68 m/s

Speed of the bee relative to the air:  8.33 m/s

If we graph these speeds (which in fact are velocities because are vectors) in a vector diagram, we will have a right triangle in which the airspeed of the bee (its speed relative to te air) is the hypotense and the two sides of the triangle will be the <u>Speed of the wind from East to West</u> (in the horintal part) and the <u>speed due North relative to the ground</u> (in the vertical part).

Now, we need to find the direction the bee should fly directly to the flower (due North):

sin \theta=\frac{Windspeed-from-East-to-West}{Speed-bee-relative-to-air}

sin \theta=\frac{6.68 m/s}{8.33 m/s}

Clearing \theta:

\theta=sin^{-1} (\frac{6.68 m/s}{8.33 m/s})

\theta=53.31\°

6 0
4 years ago
Answer 1-8 please <br> Thanks
Y_Kistochka [10]
The answers are as follows:
1. B.
A typical atom is made up of three different particles, which are electron, proton and neutron. The proton and the neutron are located inside the nucleus of the atom while the electron orbit round the nucleus.
2. C
The number of proton in an atom determines the atomic number of that atom. Atom are positively charged particles and they do no participate in chemical reactions. The number of proton of an element remain constant at all time while the number of neutrons and the electrons in the atom may change.
3. B.
The first periodic table was created by Dmitri. He arranged the periodic table in such a way that, elements with similar properties fall into the same column in his periodic table. This was because, he arranged the periodic table on the basis of their physical and chemical properties.
4. A
The elements in the periodic table are arranged in horizontal row and vertical column. The column on the periodic table divides the elements into groups.
A row of element on the periodic table is called PERIOD. For elements on the same period, they have the same number of atomic orbitals.
5. A
Chemical symbol refers to the one or two letters which are used to represent a particular element. Chemical symbols are derived in a variety of ways. The chemical symbols make it possible for one to recognize an element quickly and to write it in an abbreviated form when writing chemical equations.
6. A.
An object is said to be ductile if it can be pulled into a long wire. It refers to an element's capacity to be pulled into a thin wire without the element been deformed. This is one of the properties of metals. Ductability makes it easier for one to work with a metal.
7. C
When metals atoms react with other atoms, the metal atoms lose electrons, this is because, metals usually have a low number of electrons in their outermost shells, which they always preferred to donate in order to achieve octet form.
8. B
Particle accelerator is a machine that accelerate elementary particles to very high energies, thus producing beam of charged particles which can be used for a lot of different purposes.

6 0
3 years ago
Which of these has the greatest influence over how big a baby elephant will grow?
lina2011 [118]
Is this a multiple choice question? Or would you just like me to state generally the greatest influence over how big a baby elephant will grow ?
4 0
3 years ago
How are vectors quantities important to us in our daily life
FromTheMoon [43]

Answer:

they help us allocate a particular place in case one needs to allocate or find a place or something

8 0
3 years ago
The magnetosphere protects Earth from _____. a.solar radiation b. the solar wind c. the cold of space d.asteroid hits e.gamma ra
aivan3 [116]
Solar Radiation, The Solar Wind, and Gamma Ray Bursts
4 0
3 years ago
Read 2 more answers
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