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bixtya [17]
3 years ago
9

Car crosses the first third of the road with unknown speed and the rest of the road with the speed of 50 km/h. What is the the s

peed in the first third if the average speed of a car is 30km/h?
Physics
1 answer:
Digiron [165]3 years ago
6 0
40 km/h because the average of 50 and 30 is 40
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If a car travels 216 kilometers in 4 hours, calculate its speed.
Mariana [72]

Answer:

15 m/s

Explanation:

Speed(m/s) = distance(m)/time(s)

distance = 216 km = 216,000 m

time = 4 hours = 14,400 s

speed = 216000/14400 = 15 m/s

6 0
1 year ago
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You are on a train that is traveling at 3.0 m/s along a level straight track. Very near and parallel to the track is a wall that
loris [4]

Questions Diagram is attached below

Answer:

T=2.08s

Explanation:

From the question we are told that:

Speed of Train V=3.0m.s

Angle \theta=12\textdegree

Height of window h_w=0.90m

Width of window w_w=2.0m

The Horizontal distance between B and A from Trigonometric Laws is mathematically given by

 b=\frac{0.9}{tan12}

 b=4.23

Therefore

Distance from A-A

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 d_a=6.23

Therefore

Time Required to travel trough d is mathematically given as

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5 0
2 years ago
What are the damages or effects of sewage dumps into natural water sources???
masha68 [24]

Answer:

Sewage dumps pollute our waterways causing death of marine life, water pollution, and disease.

Explanation:

Sewage dumps. bring disease or death to our ecosystems

5 0
3 years ago
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When a solute can't be dissolved in a solvent what is it called called?​
Ivenika [448]

Answer: SATURATED

Explanation:

When a solute can no longer be dissolved it is considered "saturated" as is.

6 0
3 years ago
The accepted value for the acceleration due to gravity is 9.8 m/s2. What factors do you think are responsible for the difference
kakasveta [241]
It’s hard to perfectly measure the distance something travels, as well as the exact time it takes, making the results have some variation.
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3 years ago
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