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4 years ago

How long does it take the earth to rotate?

2 answers:

5 0

Planet Earth has just enough gravity to hold its atmosphere around it. Earth has a moon. The moon causes the tides to change, making them rise and fall. Earth orbits the Sun in about 365 days to make an Earth year. It rotates every 24 hours to make an Earth day.

zubka84 [21]4 years ago

3 0

It takes Earth 23 hours and 56 minutes to rotate. To be accurate.
Or you can just say 24 hours.
HOPE THIS HELPS YOU! ^_^

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Which statements describe what will most likely occur when warm air cools and the temperatures drop to the dewpoint check all th

Mrac [35]

air beomes more dense

below dewpoint = a dew forms ... wet underfoot.

cold enough = frost ???

7 0

3 years ago

An SUV has a mass of 6000 kg and a compact car has a mass of 2000 kg. They both go around the same unbanked circular curve on th

Evgen [1.6K]

Answer:

Therefore, the centripetal acceleration of the SUV is <u>3 times</u> ao of the compact car.

Explanation:

FOR SUV:

$ac_{suv} = \frac{mv^2}{r}\\$

where,

ac_suv = centripetal acceleration of the SUV = ?

m = mass of SUV = 6000 kg

v = speed of SUV = vo

r = radius of path

Therefore,

$ac_{suv} = \frac{6000\ vo^2}{r}\\$ ---------------- equation (1)

FOR CAR:

$ao = \frac{mv^2}{r}\\$

where,

ao = centripetal acceleration of the car = ?

m = mass of car = 2000 kg

v = speed of car = vo

r = radius of path

Therefore,

$ao = \frac{2000\ vo^2}{r}\\$ --------------------- equation (2)

Dividing equation (1) by eq(2):

$\frac{ac_{suv}}{ao} = \frac{6000}{2000}\\\\ac_{surv} = 3ao$

Therefore, the centripetal acceleration of the SUV is <u>3 times</u> ao of the compact car.

8 0

3 years ago

Which scientist was the first to use the telescope in astronomy

Mashutka [201]

Answer:

Galileo Galilei

Explanation:

although Galileo was not the scientist who invented the telescope, he was the first to use it to observe celestial objects. he used the telescope in 1609. his discovery included more accurate information about the moon, the sun and some of the planets.

4 0

3 years ago

6. When a positive charge is released and moves along an electric field line, it moves to a position of A) lower potential and l

Marysya12 [62]

Answer:

Since you would have to do work on the charge to bring it back to its original position, the charge moves to a position of lower potential and lower potential energy.

4 0

3 years ago

When one person was talking in a small room, the sound intensity level was 60 dB everywhere within the room. Then, there were 14

dolphi86 [110]

Answer:

E= 71dB

Explanation:

See attached file for step by step calculation

3 0

3 years ago