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2 years ago

7

A close system is internal energy changes by 178 J as a result being heated with 658 J of energy the energy used to work by the

system is blank

1 answer:

Alex_Xolod [135]2 years ago

8 0

The answer to your question is 480 J.

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How fast is the apple traveling when the kinetic energy is 32 joules?

Daniel [21]

Answer

The apple is traveling at 8 meters per second

Explanation

We have the equation that relates the kinetic energy with the velocty:

$K=\frac{v^2}{2}$

Then, to find thevelocity when the apple has 32, we replace K = 32 j:

$\begin{gathered} 32=\frac{v^2}{2} \\ 32\cdot2=v^2 \\ 64=v^2 \\ v=\sqrt{64}=8 \\ \end{gathered}$

Thus, the speed of the apple is 8meter per second

8 0

8 months ago

Steven's kite rose into the air at the rate of five feet per second. How many feet did it rise in 2/3 minute (please explain how

igor_vitrenko [27]

Answer:

800 ft

Step-by-step explanation:

2/3 minutes = 2/3 min * 60 sec/min = 40 sec

5 ft/sec * 40 sec = 800 ft

4 0

2 years ago

What is the GCF of 36 and 90

ELEN [110]

The greatest common factor is 18

8 0

2 years ago

Read 2 more answers

A:1 hour 37 minutes <br> B:2 hours 37 minutes <br> C:2 hours 23 minutes <br> D:1 hour 23 minutes

Y_Kistochka [10]

The correct answer is 1 hour 37

6 0

2 years ago

A music store bought a CD set at a cost of $20. When the store sold the CD set, the percent markup was 40%. Find the selling

Debora [2.8K]

Answer:

$28

Step-by-step explanation:

cp=20

mp=20%ofcp

=20/100*20

=8

now,

sp=mp+cp

=8+20

=28

8 0

2 years ago