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Grace [21]
3 years ago
10

Given that a shape is a parallelogram, which of the following is sufficient to state that it is also a rectangle?

Physics
1 answer:
Alexxandr [17]3 years ago
5 0
Given that a shape is a parallelogram, the answer that is sufficient to state that it is also a rectangle is that C. The opposite sides are parallel.
A is not enough - this would mean it is a square, not a rectangle. 
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Prompt how does melanin provide protection against skin cancer?
Wittaler [7]

Answer:

absorb , it absorbs it ...

4 0
3 years ago
A loop of radius r = 3 cm is placed parallel to the xy-plane in a uniform magnetic field = (0.75 T) . The resistance of the loop
matrenka [14]

Answer:

i = 0.00077A

Explanation:

Given:

loop radius, r = 3.0 cm = 0.03 m

Area, A = π x r² = π x 0.03² = 0.0028 m²

Magnetic Field, B = 0.75 T

Loop resistance, R = 18 Ω

time, t = 0.15 seconds

Now,

the induced emf is given as:

EMF = - BA/t .......1

Likewise,

EMF = iR.......2

Equate 1 and 2

iR = - BA/t

i = - BA/tR

i = 0.75×0.0028/0.15×18

i = 0.0021/2.7

i = 0.00077A

8 0
3 years ago
Which statement is accurate about how the aurora borealis is formed?
g100num [7]

Answer:

When the electrons jump to a higher energy state, they release energy as electromagnetic radiation, light.

Explanation:

When the solar wind gets past the magnetic field and travels towards the Earth, it runs into the atmosphere. As the protons and electrons from the solar wind hit the particles in the Earth's atmosphere, they release energy – and this is what causes the northern lights.

7 0
3 years ago
An uncharged capacitor and a resistor are connected in series to a source of emf. If E = 9.00 V, C=20.0μF , and R = 100ω , find
Levart [38]

Based on the values of E, C, and R, the maximum charge on the capacitor can be found to be 1.80 x 10⁻⁴ C.

<h3>What is the maximum charge?</h3>

The maximum charge on the capacitor can be found as:

= C x ( 10⁻⁶ / 1 μF) x E

Solving gives:

= 20.0 x ( 10⁻⁶ / 1 μF) x 9.00

= 1.80 x 10⁻⁴ C

In conclusion, the maximum charge is 1.80 x 10⁻⁴ C

Find out more on the maximum charge at brainly.com/question/14744255

#SPJ4

8 0
2 years ago
Explain how fossil fuels originated, and why this process results in them being considered nonrenewable resources.
ki77a [65]
Dead animals from million of years ago in the crust being exposed to heat and pressure breaking down into fossil fuels. The reason it is considered non-renewable is because the amount of time it takes to from these fuels takes way longer than any human could ever live.<span />
3 0
3 years ago
Read 2 more answers
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