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3 years ago

Name each planet in the solar system

1 answer:

5 0

Mercury is the closest planet to the sun.

Venus is second planet. Venus has no moons.

Earth is the third planet. This is the only planet that is known to inhabit life.

Mars is the fourth planet. Mars is called the "red planet" and has two moons.

Jupiter is the fifth planet in our solar system. Jupiter is the biggest planet in our solar system.

Saturn is the sixth planet. It has 31 moons.

Uranus is the seventh planet. It is a greenish-blue planet.

Neptune is the eight planet. On Neptune, temperatures stay colder than -350 Fahrenhiet.

Pluto is no longer a planet, but if you weighed 100 pounds on Earth, then you would weight 7-8 pounds on Pluto. But your mass would be the same.

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Fill in the blank question.

puteri [66]

Answer is on the image with the explanation. I hope that might help you with the answers

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1 year ago

A bullet of mass m=26g is fired into a wooden block of mass M=4.7kg. The block is attached to a string of length 1.5m. The bulle

vodka [1.7K]

Answer:

u = 449 m/s

Explanation:

Given,

Mass of the bullet, m = 26 g

Mass of the wooden block,M = 4.7 Kg

height of the block,h = 0.31 m

initial speed of the block, u = ?

Using conservation of energy

$(M+ m)gh = \dfrac{1}{2}(M+m)v^2$

$gh = \dfrac{1}{2}v^2$

$v=\sqrt{2gh}$

$v=\sqrt{2\times 9.81\times 0.31}$

v = 2.47 m/s

Now, using conservation of momentum to calculate the speed of the bullet.

m u + M u' = (M+m)v

m u = (M+m)v

0.026 x u = (4.7+0.026) x 2.47

u = 449 m/s

Hence, the speed of the bullet is equal to 449 m/s.

5 0

2 years ago

A suitcase (mass m = 18 kg) is resting on the floor of an elevator. The part of the suitcase in contact with the floor measures

Sindrei [870]

Answer:

P=2736 Pa

Explanation:

According to Newton we have that:

∑ $F=m*a\\$

A force is exerted by the elevator to the suitcase, according to 3th Newton's law an equal force but in the opposite direction will appeared on the suitcase, that is:

∑ $F=m*g+m*a=m*(g+a)$

$F=205.2N$

We know that the pressure is given by:

$P=\frac{F}{A}\\P=\frac{205.2N}{(0.50m)*(0.15m)}\\P=2736N/m^2=2736Pa$

6 0

3 years ago

Which of the following best describes the energy transformations that take place when a battery-powered dvd player is used to wa

AveGali [126]

D. chemical to electrical to sound and electromagnetic

3 0

3 years ago

Which of the following is the main evidence of life in the early universe?

Arturiano [62]

A) Dinosaur fossils because they were proven that there was life before us. we also found out that our old skulls had dinosaur teeth in the heads. that showed us that we were on the food chain. but now we aren't because we now have protected cities.

8 0

3 years ago

Read 2 more answers