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aalyn [17]
3 years ago
11

Answer the following questions. show your full steps please

Physics
1 answer:
aleksandr82 [10.1K]3 years ago
8 0

Answer:

Explanation:

If we let our reference frame travel at 30 m/s with the constant speed car, The accelerating car increases its velocity by 10 m/s in 3 seconds.

The average velocity of the accelerating car is (0 + 10) / 2 = 5 m/s

It will advance its position 5 m/s(3 s) = 15 m in the accelerating period.

It takes 5 + 3 = 8 m for the two cars to become side by side.

It would take another 5 + 3 = 8 m for the accelerating car to leave a gap of 3 m between.

The car requires 8 + 8 = 16 m to pass the other safely but the acceleration period only gets him to  15 m.

So despite your saying this is not a YES / NO question, the answer is NO the  acceleration is too low or not long enough to meet the required clearances.

Input needed is 10000 J/s / 0.30 = 333333 = J/s

three hours requires 333333(3)(3600) = 360 MJ of energy

360 MJ / 34 MJ/liter = 10.6 liters.

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Deffense [45]

Answer:

Fx  = 4.92 [N]

Fy = 0.868 [N]

Explanation:

Let's take the 10 degrees as a measure from the horizontal component to the vector.

Thus taking the components in the X & y axes respectively:

Fx = 5*cos(10) = 4.92 [N]

Fy = 5*sin(10) = 0.868 [N]

3 0
3 years ago
The energy efficiency of a car is approximately 20%. If you put 10 gallons of gas into the car, how many gallons are “wasted”?
podryga [215]
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10 gallons x 20% =
10 x 0.20 =
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4 0
3 years ago
A water wave travels 36 meters in 15 seconds. What is the speed of the wave?
atroni [7]
2.4 meters per second

I hope this helps
5 0
3 years ago
Read 2 more answers
At $.110 per kWh, what does it cost to leave a 40-W porch light on day and night for a year?
nlexa [21]

The cost of electricity be  $ 38.544.

<h3>What is electricity?</h3>

Electricity is the passage of charges in a conductor. From one end of the terminal to the other, charges are transmitted. Usually, the terminal moves from positive to negative. Since the nucleus holds the electrons loosely, they can move freely throughout the body.

Watts are units of power used to measure electrical output. 

Price of electricity is $ 0.110 per kWh .

If a 40-W porch light on day and night for a year, total amount of electricity spend = power of the bulb × time

= 40 W × 1 year

= 40 W × 365 day

= 40 W × 365 ×24 h

= 350400 Wh

= 350.4 kWh.

Hence,  the cost of electricity be = $350.4 × 0.110 =  $ 38.544.

Learn more about electricity here:

brainly.com/question/8971780

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4 0
1 year ago
Physical Science<br> The sun is composed mainly of oxygen.<br> O True<br> O False
Nesterboy [21]

Answer:

false

Explanation:

Because the sun has ultraviolet rays

4 0
2 years ago
Read 2 more answers
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