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3 years ago

80 points for u to answer these questions and get marked as brainlist

Physics

1 answer:

shepuryov [24]3 years ago

4 0

Answer:

1. e

2. b

3. g

4. f

5. a

6. d

7. j

8. c

9. i

10. h

Explanation:

Hope this helped! :)

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What type of mirror is most likely to form an image with these characteristics?

serg [7]

Answer

Plane

There are two types of curved mirrors, concave and convex. Both curved mirrors form that are magnified.

Concave will form an image on the same side as the object and it may not be the mirror used.

Plane mirror on the other hand forms images behind the mirror in all cases. The image formed is upright meaning it is virtual.

∴ The mirror used is a plane mirror.

4 0

3 years ago

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Open the Earth Science textbook to page 239 and summarize what “Wegener’s Hypothesis” is.

solniwko [45]

Alfred Wegener first presented his hypothesis to the German Geological Society on 6 January 1912. His hypothesis was that the continents had once formed a single landmass, called Pangaea, before breaking apart and drifting to their present locations.

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4 years ago

Which pair of quantities represents scalar quantities

____ [38]

Answer:

physical quantity that only has magnitude and no other characteristics.

Explanation:

so no velocity only magnitude

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3 years ago

You are standing on a footbridge that is 12 feet above a lake. You look down and see a duck in the water. The duck is 7 feet awa

kolbaska11 [484]

Answer:

30.22°.

Explanation:

Given that

height of the bridge ,h= 12 ft

The distance of the lake from bridge ,L= 7 m

Lets take angle = θ

Now by using diagram

We can say that

$tan\theta =\dfrac{L}{h}$

$tan\theta =\dfrac{7}{12}$

$tan\theta=0.583$

$\theta=30.22^{\circ}$

That is why the angle will be 30.22°.

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4 years ago

AYUDA!!!!!

ZanzabumX [31]

Answer:

a) El valor de la densidad es 0.79 $\frac{g}{cm^{3} }$ o 790 $\frac{g}{cm^{3} }$

b) El peso especifico es 7749.9 $\frac{N}{m^{3} }$

Explanation:

a) La densidad se define como la propiedad que tiene la materia, ya sean sólidos, líquidos o gases, para comprimirse en un espacio determinado. En otras palabras, la densidad es una magnitud que permite medir la cantidad de masa que hay en determinado volumen de una sustancia. Entonces, la expresión para el cálculo de la densidad es el cociente entre la masa de un cuerpo y el volumen que ocupa:

$d=\frac{m}{V}$