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Svetlanka [38]
3 years ago
12

Which of the following best describes images formed by a convex mirror?

Physics
2 answers:
tatiyna3 years ago
5 0

Answer:

I believe its C

Explanation:

im sorry if its not...

Musya8 [376]3 years ago
3 0

Answer:

im guessing C

Explanation:

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A cannon fired horizontally at 20 m/s from the top of a cliff lands 80m away. how tall is the cliff
Scorpion4ik [409]

Answer:

The height of the cliff is, h = 78.4 m

Explanation:

Given,

The horizontal velocity of the projectile, Vx = 20 m/s

The range of the projectile, s = 80 m

The projectile projected from a height is given by the formula

                            <em> S = Vx [Vy + √(Vy² + 2gh)] / g </em>

Therefore,  

                            h = S²g/2Vx²

Substituting the values

                             h = 80² x 9.8/ (2 x 20²)

                                = 78.4 m

Hence, the height of the cliff is, h = 78.4 m

8 0
3 years ago
When the switched on, what type of energy is moving through the circuit?
BabaBlast [244]

Answer:

Heat energy

Explanation:

Electrons are flowing through the circuit, they pass through a resistor, in this case a light bulb. The energy is then transformed into light and heat energy.

7 0
3 years ago
Read 2 more answers
When do vernal equinoxes usually occur? autumnal?
shepuryov [24]

Spring tides occur twice each lunar month all year long without regard to the season. Neap tides, which also occur twice a month, happen when the sun and moon are at right angles to each other. ... The moon appears full when the Earth is between the moon and the sun

7 0
3 years ago
When a calcium atom forms an ion, it loses two electrons. What is the electrical charge of the calcium ion? a) −2 b) −1 c)+ 1 d)
MrRa [10]

Answer:

Option D

+2

Explanation:

We know that Calcium has 20 electrons and 20 protons. It lost two electrons, it has 20 protons, but only 18 electrons. This makes calcium a positive ion with a charge of +2.

8 0
2 years ago
In 10s a car accelerates 4m/s^2 to 60m/s. How fast was the car going before it accelerated?
slega [8]

v2 = v1 + at 60 = v1 + 4*10  v1 = 20 m/s

3 0
3 years ago
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