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salantis [7]
3 years ago
12

Which of the following is the BEST explanation for why oceans have two different types of currents?

Physics
1 answer:
ivanzaharov [21]3 years ago
7 0

Answer:

sddww

Explanation:

szsswa

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If the Hubble Space Telescope is 598 m above the surface of the Earth and is traveling at 7.56 x 103 m/s, how long does it take
viva [34]

Answer:

5069.04 seconds

Explanation:

The parameter we are looking for is called the Orbital period of the Hubble Space Telescope.

It is given as:

T = \sqrt{\frac{4\pi^2r^3 }{GM} }

where r = radius of orbit of Hubble Space Telescope

G = gravitational constant = 6.67408 * 10^{-11} m^3 kg^{-1} s^{-2}

M = Mass of earth

We are given that:

r = radius of the earth + distance of HST from earth

r = 6.38 * 10^6 + 598 = 6380598 m

M = 5.98 * 10^{24} kg

Therefore, T will be:

T = \sqrt{\frac{4*\pi^2 * 6380598^3 }{6.67408 * 10^{-11} * 5.98 * 10^{24}}}

T = 5069.04 secs

The orbital period of the Hubble Space Telescope is 5069.04 seconds.

7 0
3 years ago
Read 2 more answers
Please help me anything will help
spin [16.1K]
Your answer is C) The speed of sound is higher in solids than in liquids. 
6 0
3 years ago
A bicycle coasts along a flat road. what form of energy does it best demonstrate ​
xeze [42]

Answer:

Kinetic energy

hope this helps:))

4 0
4 years ago
Number 38 please!!!
vodomira [7]

Answer:

D. 30 Ω

Explanation:

R₁ + R₂ = 33

-0.0005 R₁ + 0.005 R₂ = 0

Solve the system of equations for R₁.

-0.0005 R₁ + 0.005 R₂ = 0

0.005 R₂ = 0.0005 R₁

R₂ = 0.1 R₁

R₁ + R₂ = 33

R₁ + 0.1 R₁ = 33

1.1 R₁ = 33

R₁ = 30

3 0
3 years ago
A frictionless piston–cylinder device contains 7 kg of nitrogen at 100 kPa and 250 K. Nitrogen is now compressed slowly accordin
lora16 [44]

Answer: -1038.8 kJ

Explanation:

From the question, we can see that PV^n = constant. And as such, we can deduce that it is a polytropic process. Thus, we can use the polytropic work equation to calculate the needed work input.

from the question we were given

Mass of nitrogen, m = 7kg

initial temperature, T1 = 250k

Final temperature, T2 = 450k

Polytropic index, n = 1.4

Specific gas constant, R = 0.2968kJ/kgK

W = [p2 * v2 - p1 * v1] / 1 - n

W = [m * R * T2 - T1] / 1 - n

W = 7*0.2968*(450 - 250)] / 1 - 1.4

W = [7*0.2968*200] / -0.4

W = 415.52 / -0.4

W = -1038.8 kJ

5 0
3 years ago
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