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Nataliya [291]
3 years ago
11

When that same man hammers harder on the ladder, the waves created will transfer more energy. True or False

Physics
1 answer:
I am Lyosha [343]3 years ago
7 0

Answer:

True

Explanation:

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Driving Zone 7 corresponds with
stepan [7]
Your driving zone refers to the areas of space around your car, it refers to all the area around your car as far as your eyes can see. 
Each car has seven zones numbered from 1 to 7. Driving zone 7 corresponds with THE SPACE YOUR VEHICLE IS OCCUPYING. The other zones are as follows:
zone 1 = area directly infront of your car
zone 2 = your left lane
zone 3 = your right lane
zone 4 = left rear of your car
zone 5 = right rear of your car 
zone 6 = area directly behind your car.
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3 0
3 years ago
Mechanical energy is the difference between the kinetic and potential energies of an object. True or False?
Fofino [41]

Answer:

False

Explanation:

Its the sum of those not the difference between them

4 0
3 years ago
Read 2 more answers
A bridge to be fabricated of steel girders is designed to be 500 m long and 12 m wide at ambient temperature (assumed 20°C). Exp
andrew-mc [135]

Answer:

23

21.7391304348 m

Explanation:

L = Initial length = 500 m

\Delta T = Change in temperature = 40-(-35)

\alpha = Coefficient of thermal expansion = 12\times 10^{-6}\ /^{\circ}C

Change in length is given by

\Delta L=L\alpha \Delta T\\\Rightarrow \Delta L=500\times 12\times 10^{-6}\times (40-(-35))\\\Rightarrow \Delta L=0.45\ m

The change in length is 0.45 m

The number of joints would be

n=\dfrac{0.45}{0.02}\\\Rightarrow n=22.5\\\Rightarrow n\approx 23

The number of joints is 23

Each bridge section length would be

\dfrac{L}{n}=\dfrac{500}{23}=21.7391304348\ m

The length of each bridge section would be 21.7391304348 m

4 0
3 years ago
Physical sciences march test New towns law and​
fiasKO [112]

Answer:

What are you asking

Explanation:

7 0
3 years ago
Read 2 more answers
If the pressure on an ideal gas is increased, what will happen to the volume of the gas?
iogann1982 [59]
<span>B). it will decrease. 

But, you should keep the temperature constant, 'cause according to Boyle's law, pressure of the ideal gases is indirectly proportional to it's volume but at constant temperature. So, don't confuse in that.

Hope this helps!


</span>
7 0
3 years ago
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