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3 years ago

PLEASE help can you give me the answers to the Light Unit Review Practice quiz I'm totally lost

Physics

1 answer:

solniwko [45]3 years ago

8 0

There’s nothing to see so there for I can’t help you

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The start of the Space Age throughout the 1950s and 1960s helped Florida's economy flourish. How did it continue to impact Flori

Inessa05 [86]

Answer:

A) After the Space Age ended, many people moved to other states and the economy began to decline.

Explanation:

After the space age ended, businesses slumped, when the space shuttle program ended those made redundant could not be re absorbed due to a lack of follow-on by NASA. The 2008 recession also had impacted businesses in the area. As such many moved to other states, which had the effect of a brain drain.

After Apollo, in the late 70's, there was a similar decline of economic activities as workers were laid off and where finding it hard to sell off their properties as the real estate prices where low.

7 0

3 years ago

A box is pulled along a floor by a force of 3.0 N. The friction acting on the box is 1.0 N, as shown. How much kinetic energy do

Furkat [3]

Answer:

4 J

Explanation:

From the image attached, we can see 2 horizontal forces acting on the box albeit in opposite directions.

Now, the net force will be;

F_net = 3 - 1

F_net = 2 N

To move a distance of 2 metres, kinetic energy is;

K.E = Force × Distance = 2 × 2 = 4 J

7 0

3 years ago

You drive 200 miles in 3 hours before stopping for lunch and gas. After lunch you

Paraphin [41]

Given :

You drive 200 miles in 3 hours before stopping for lunch and gas. After lunch you travel 250 miles in an hour and a half.

To Find :

Average speed.

Solution :

We know, average speed is given by :

$v=\dfrac{\text{Total distance covered}}{\text{Total time taken}}\\\\v=\dfrac{200+250}{3+1.5}\ miles/hr\\\\v=\dfrac{450}{4.5}\ miles/hr\\\\v=100\ miles/hr$

Therefore, average speed of the journey is 100 miles/hr.

Hence, this is the required solution.

4 0

3 years ago

The number of kilograms of water in a human body varies directly as the mass of the body. Upper AA 9393-kg person contains 6262

Pie

Answer:

54 kg

Explanation:

Mass of person = 93 kg = $m_p$

Mass of water = 62 kg = $m_w$

Dividing the above two masses we get

$\frac{m_p}{m_w}=\frac{93}{62}\\\Rightarrow \frac{m_p}{m_w}=1.5\\\Rightarrow m_p=1.5m_w$

Hence, the mass of the person is 1.5 times the mass of the water in them

Now, Mass of person = 81 kg = $m_p$

$m_p=1.5m_w\\\Rightarrow m_w=\frac{1}{1.5} m_p\\\Rightarrow m_w=\frac{1}{1.5} \times 81\\\Rightarrow m_w=54\ kg$

So, the mass of water in a person that has mass of 81 kg is 54 kg

3 0

3 years ago

Which is the union of one man and one woman called?

tensa zangetsu [6.8K]

<h2>Answer: C.Monogamy </h2>

Explanation:

Monogamy is a term that refers to the sentimental and sexual bond that <u>does not allow the multiplicity of spouses. </u>

This means that love relationships are based on exclusivity, on maintaining a unique bond with your partner, refusing to develop the same kind of union or the same actions with other people.

5 0

4 years ago

Read 2 more answers