Ask question

Ask question

All categories

andrey2020 [161]

2 years ago

12

3. What is the distance between New York and London, if an airplane flying at 580 Km per hour takes 7 hours to complete the trip

?

1 answer:

Naddik [55]2 years ago

4 0

Answer:

4060 km

Explanation:

580 km/hr * 7 hr = 4060 km

rate * time = distance

You might be interested in

What is the displacement of the particle in the time interval 7 seconds to 8 seconds? A. 0 meters B. 1.5 meters C. 3 meters D. 7

Dmitrij [34]

Answer: B. 1.5 meters

Explanation:

4 0

2 years ago

Read 2 more answers

A nuclear reaction only involves valence electrons. True or False?

dalvyx [7]

I believe it would be false

5 0

2 years ago

Read 2 more answers

You plan to take a trip to the moon. Since you do not have a traditional spaceship with rockets, you will need to leave the eart

hichkok12 [17]

Answer:

$v = 3.5 \times 10^5 m/s$

Explanation:

At some distance from the Earth the force of attraction due to moon is balanced by the force due to Moon

so we will have

$\frac{GM_em}{r^2} = \frac{GM_m}{(d-r)^2}$

now we have

$\frac{d - r}{r} = \sqrt{\frac{M_m}{M_e}}$

$\frac{3.844\times 10^8 - r}{r} = \sqrt{\frac{7.36 \times 10^{22}}{5.9742\times 10^{24}}}$

so we will have

$r = 3.46 \times 10^8 m$

Now by energy conservation

$-\frac{GM_e}{R_e} - \frac{GM_m}{d - (R_e + R_m)} + \frac{1}{2}v^2 = -\frac{GM_e}{r} - \frac{GM_m}{d - r}$

$-6.26 \times 10^{8} - 13046 + \frac{1}{2}v^2 = -1.15 \times 10^6 - 1.28 \times 10^5$

$v = 3.5 \times 10^5 m/s$

7 0

3 years ago

LETS TALK ABOUT ANYTHING!!! <br> IS IT NORMAL TO ALWAYS BE SAD??? like all the time........

Gennadij [26K]

Umm, not normal or healthy but common
could be depression

5 0

2 years ago

Read 2 more answers

You have learned in biology class that a substance called chlorophyll makes leaves green. You guess that perhaps leaves change c

Shkiper50 [21]

You have formed a hypothesis.

7 0

3 years ago

Read 2 more answers