3 years ago

An earth satellite in an elliptical orbit travels fastest when it is

Physics

1 answer:

Serggg [28]3 years ago

4 0

ANY orbiting object travels fastest when it's closest to the central body.

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How strong is the attractive force between a glass rod with a 0.700μC0.700μC charge and a silk cloth with a –0.600μC–0.600μC cha

lisov135 [29]

Answer:

0.2625 N/C

Explanation:

Force of attraction = $\frac{K\timesQ_1\times Q_2}{R^2}$

where Q₁ and Q₂ are charges and R is distance between charges.K is a constant equal to 9 x 10⁹.

= $\frac{9\times10^9\times.7\times10^{-6}\times.6\times10^{-6}}{(12\times10^{-2})^2}$

= 0.2625 N/C

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3 years ago

The average distance from Earth to the Moon is 384,000 km. In the late 1960s, astronauts reached the Moon in about 3 days. How f

Anon25 [30]

Answer:

They must have been traveling at 5333.33 km/h to cover that distance in 3 days.

That speed are 6,66 times higher than the speed of an aircraft jet.

Explanation:

d= 384000 km

t= 3 days = 3*24hr = 72hr

V= 384000km/72hr

V= 5333.33 km/h

comparison:

V1/V2= 5333.33/800

V1/V2= 6.66

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3 years ago

A man is 40 kg . calculate his weight.(g=10m/s^2)

Dafna1 [17]

${ \large{ \bf{Weight = mg}}}$

${ \large{ \bf{Mass = 40 \: kg \: \: \: \: (given)}}}$

${ \large{ \bf{Weight = 40 \times 10}}}$

${ \large{ \therefore{ \bf{ \red{ Weight = 400N}}}}}$

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3 years ago

A boy wants use his slingshot to shoot a water balloon into the air. His

Marrrta [24]

Answer:

A. 70 m OS the correct one

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4 years ago

What does an electromagnet have that a bar magnet does not ?

Anon25 [30]

The bar magnet and the electromagnet act identical. The difference being a electromagnet is a coil of wire that has a power source connect to both ends, this energizes the coil with an electromagnetic field.

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4 years ago