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masha68 [24]
3 years ago
5

What is the speed of a bobsled whose distance-time graph indicates that it traveled 112m in 30s? _____ m/s

Physics
1 answer:
bezimeni [28]3 years ago
7 0
Speed = distance/time
             = 112/30 
 speed = 3.73

hope this helps  :)
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Average amount of time wind machines operate
Rasek [7]

The wind machine on an average operates for a time of about \boxed{3-4\text{ hours}}.

Explanation:

The wind energy is the method of using the energy carried by the wind to generate the power. The wind energy is the considered as the conventional  and clean source of energy.

The wind machines require the high power winds to rotate the blades of the windmill and produce power using the energy of the moving wind.

The winds blow at such high speed for a very small time during the day, the wind machine cannot be expected to work for a longer time during the whole day.

The wind energy can be obtained form a wind mill for a limited time unlike the other form of energy like thermal energy or even the solar energy. The thermal energy can be obtained at anytime due to burning of fuel whereas the solar energy can at least be obtained during the whole day time.

Thus, the wind machine on an average operates for a time of about \boxed{3-4\text{ hours}}.

Learn More:

1. Acceleration of the box under friction brainly.com/question/7031524

2. The kinetic energy of an object depends on the brainly.com/question/137098

3. The approximate time taken to walk for 2000 miles brainly.com/question/3785992

Answer Details:

Grade: Middle School

Subject: Physics

Chapter: Energy

Keywords:

wind energy, conventional source, energy, thermal, solar, 3-4 hours, high speed, machine, time, operate.

6 0
3 years ago
PLEASE GUYS I REALLY NEED HELP ASAP. THIS IS SO IMPORTANT, I AM EVEN WILLING TO PAY FOR REAL.
malfutka [58]
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When another driver passes you on the left, you must _________ until the vehicle passes?
Vlada [557]
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The scanner records the time from when a ultrasound wave is emitted to when its reflection is received
telo118 [61]

Explanation:

The scanner records the time from when a ultrasound wave is emitted to when its reflection is received. A technician calculates the depth of the reflection using the equation as :

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The distance covered by ultrasonic wave when it was emitted and gets reflected is 2d. Speed is given by :

v=\dfrac{d}{t}

d is distance and t is time

Here, d = 2d

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3 0
3 years ago
Wat is matter made of?
Alex Ar [27]

Matter is made of the particles are called atoms!

hope this helps!

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3 years ago
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