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marshall27 [118]
4 years ago
6

What green house gas is the most powerful absorber of radiation emitted by Earth?

Physics
1 answer:
dsp734 years ago
4 0

Answer:

Methane

Explanation:

Because carbon dioxide is wrong and i just got a 70 percent cause someone thought it was carbon dioxide but it's definitely not

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Why did the number of sea turtles decrease due to global warming?
eduard

Hotter sand from increasing temps results in decreased hatching rates or nest failure. High sand temps also affect hatchlings by altering natural sex ratios, with hotter temps producing more female hatchlings. <span>Sea turtles use ocean currents to travel and find prey. Warming ocean temps influence migratory species by altering currents and impacting the distribution and abundance of prey species.</span>

8 0
3 years ago
2. Suppose one of your classmates says “The net force on an airplane is zero, therefore
poizon [28]

This is a false statement. Newton's first law says that if the net force on an object is zero, the object stays in UNIFORM MOTION. That means it keeps moving at a constant speed, in a straight line. It can certainly have some speed, in some direction, but without any net force, they CAN'T CHANGE.

5 0
4 years ago
(a) What is the vapor pressure of water at 20.0ºC ? (b) What percentage of atmospheric pressure does this correspond to? (c) Wha
DENIUS [597]

Answer:

a). Vapour pressure = 2333.141 Pa

b). Percentage of atmospheric pressure = 99 %

c). Percentage of water vapour = 1.4 %

Explanation:

a). From water saturation pressure table,

Vapour pressure of water at 20°C is 17.5 torr

We know, 1 torr = 133.322 Pa

Therefore, 17.5 torr = 2333.141 Pa

Therefore, vapour pressure at 20°C is 2333.141 Pa

b). At 20°C, the pressure at atmospheric unit = 0.0231 atm

                                                                           = 0.0231 x 10^{5} Pa

                                                                          = 2310 Pa

Therefore, \frac{2310}{2333.141}

             = 0.99

Therefore percentage of atmospheric pressure = 0.99 x 100

                                                                                 = 99 %

c). We Know

Relative Humidity (Rh)= \frac{P_{v}}{P_{saturation}}

where P_{v} is vapour pressure

Rh is given as 100% = 1

∴ 1 = \frac{P_{v}}{P_{saturation}}

  P_{v}=P_{saturation} = 2333.141 Pa

Now humidity ratio is

w = \frac{m_{v}}{m_{a}}   , where m_{v} is mass of vapour

                                                                    m_{a} is mass of air

w = 0.622\times \frac{P_{v}}{P_{total}-P_{v}}

Let the total pressure be 10^{5} Pa

w = 0.622\times \frac{2333.141}{10^{5}-2333.141}

w = 0.01485

Therefore, percentage of water vapour is 0.01485 x 100

                                                                  = 1.4 %

8 0
3 years ago
What is the torque in ( lbs-ft ) of a man pushing on a wrench with 65 lbs of force 8 unches from the nut / bolt he is trying to
Mademuasel [1]

Explanation:

The torque \tau is given by

\tau=Fd = (65\:\text{lbs})(\frac{8}{12}\:\text{ft}) = 43.3\:\text{lbs-ft}

4 0
3 years ago
Can the enzyme DNA polymerase be used to break down lactose
Lady_Fox [76]
Short answer: No

DNA polymerase is an enzyme responsible for copying DNA strands. Lactase is an enzyme responsible for breaking down lactose.
6 0
3 years ago
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