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4 years ago

Which would be the most reliable source of information about the weather?

Physics

2 answers:

o-na [289]4 years ago

8 0

Answer:

C: The national weather service channel.

Explanation:

first, you can rule out A and B because they don't exactly provide exact information. D can be ruled out because it shows predicted weather while C, The national weather service channel, has 'round the clock info instead of predictions.

puteri [66]4 years ago

4 0

It is answer a a fishing magazine

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The normal force equals the magnitude of the gravitational force as a roller coaster car crosses the top of a 58-m-diameter loop

dedylja [7]

Answer:

16.87 m/s

Explanation:

To find the speed of the car at the top, when the normal force is equal the gravitational force, we just need to equate both forces:

$N = P$

$m*a_c = mg$

$a_c$ is the centripetal acceleration in the loop:

$a_c = v^2/r$

So we have that:

$mv^2/r = mg$

$v^2/r = g$

$v^2 = gr$

$v = \sqrt{gr}$

So, using the gravity = 9.81 m/s^2 and the radius = 29 meters, we have:

$v = \sqrt{9.81 * 29}$

$v = \sqrt{284.49} = 16.87\ m/s$

The speed of the car is 16.87 m/s at the top.

5 0

3 years ago

If the temperature at the surface of Earth (at sea level) is 100°F, what is the temperature at 2000 feet if the average lapse ra

oksano4ka [1.4K]

Answer:

107 °F

Explanation:

Given that

The temperature at sea level = 100°F

height ,h= 2000 feet

The average lapse rate = 3.5°F/1000 feet

Given that rise in temperature 3.5°F per 1000 feet.

1000 feet ⇒ 3.5°F

Given that 2000 feet

2000 feet ⇒ 3.5°F x 2 +100°F

2000 feet ⇒ 107 °F

Therefore the temperature will be 107 °F .

6 0

3 years ago

For a wave, what term is defined as the maximum height of a crest, or depth of a trough, relative to the normal level? for a wav

sammy [17]

The appropriate response is amplitude. Amplitude is the target estimation of the level of progress (positive or negative) in environmental weight (the pressure and rarefaction of air atoms) created by sound waves.

I hope the answer will help you.

6 0

3 years ago

What is the acceleration of a 24 kg mass pushed by a 6 N force

valentinak56 [21]

Answer:

t15 kg

Explanation:

add then subtract blah blah blah

8 0

3 years ago

If the resistance of an electric circuit is 12 ohms and the voltage in the circuit is 6 ov, the current flowing through the circ

Anestetic [448]

The current in the circuit =5 A

Explanation:

Voltage = 60 V

resistance= 12 ohm

using ohm's law V=i R

60= i (12)

i=60/12

i=5 A

Thus the current flowing in the circuit = 5 A

6 0

3 years ago