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bogdanovich [222]
3 years ago
8

Which change will always result in an increase in the gravitational force between two objects?

Physics
1 answer:
aleksklad [387]3 years ago
8 0

Answer:

increasing the masses of the objects and increasing the distance between the objects

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A 3 inch fire hose has a water flow of 200 gallons per minute. What is the flow in liters per second? Note: Use US gallons not U
stepladder [879]

Answer:

Case I: 12.617 L/s

Case II: 161.406 cubic meters per hour

Case III: 1.062 Pound inches

Explanation:

<u>Given:</u>

  • Speed of water flow = 200 gallons per minute
  • Speed of air blow = 95 cubic feet per minute
  • Measure of Torque = 12 Newton centimeter

<u>Assumptions:</u>

  • 1 US gallon = 3.785 L
  • 1 min = 60 s
  • 1 ft = 0.3048 m
  • 1 h = 60 min
  • 1 inch = 2.54 cm
  • 1 N = 0.2248 lb

Case I:

Speed\ of\ water\ flow = 200 \dfrac{gallon}{min}\\\Rightarrow V_{water} = 200\times \dfrac{3.785\ L}{60\ s}\\\Rightarrow V_{water} = 12.617\ L/s

Case II:

Speed\ of\ air\ blow = 95 \dfrac{ft^3}{min}\\\Rightarrow V_{air} = 95\times \dfrac{(0.3048\ m)^3}{\dfrac{1}{60}\ h}\\\Rightarrow V_{air} = 95\times (0.3048)^3\times 60\ m^3/h\\\Rightarrow V_{air} = 161.406\ m^3/h

Case III:

Measure\ of\ torque = 12\ N cm\\\Rightarrow \tau = 12\times (0.2248\ lb)\times \dfrac{1}{2.54}\ in\\ \Rightarrow \tau = 1.062\ lb in

6 0
3 years ago
to advance in time the evolution of temperature of the atmosphere at any given point in the globe, models calculate the temperat
Natasha_Volkova [10]
  • The complexity of Earth is beyond the capabilities of computer simulations.
  • Numerous assumptions that must be made by computer models have a big impact on the forecasts they produce.
  • A computer model can incorporate historical climate data, but it is not possible to draw assumptions about future climates using this data in any way.
  • A computer model cannot distinguish between anthropogenic climate change and natural climatic fluctuations.
<h3>How precise are temperature forecasts made by climate models?</h3>

The forecasting of global surface temperatures is one of the most significant results of climate models.

Scientists evaluate the effectiveness of their models by contrasting observations of the Earth's climate with predictions of future temperatures and "hindcasts" of past temperatures. Then, by comparing specific climate models and the average of all models to actual warming, scientists may determine whether temperature projections are accurate.

Researchers can have more faith that models can effectively predict future changes in the same factors if they successfully simulate the climate response in the past.

To know more about climate models, visit:

brainly.com/question/21837297

#SPJ4

8 0
1 year ago
Francium decays with a half-life of 22 minutes. If we start out with 639 mg of francium,how much would remain after 2.7 hours?
Vinil7 [7]

Answer:

3.87 or 3.9 mg

Explanation:

2.7h * 60mins = 162mins

number of 1/2 lives = 162/22= 7.364

amount remaining = 639(1/2)^7.364 = 3.8796

answer = 3.87 or 3.9

6 0
3 years ago
A runner starts at position A. He runs 40 m North, 10 m East and 40 m
Alecsey [184]
The answer is C.) 10 m East
8 0
3 years ago
Please help ASAP!
Softa [21]

Answer:

100 newton

Explanation:

newton third law of motion says to every action there is an always an equal and opposite reaction so the magnitude will stay equal but opposite direction

8 0
3 years ago
Read 2 more answers
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