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3 years ago

1.How can you conserve water in the kitchen?

Physics

1 answer:

PIT_PIT [208]3 years ago

4 0

Instead of washing vegetables in running water, fill a bowl of water and wash inside the bowl.

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What energy is present when a magnet is moving?

Vitek1552 [10]

Answer:

kinetic energy is when an object is moving

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3 years ago

Need help with this worksheet. Very short

attashe74 [19]

Answer:

In the grapher: The stops are marked with a flat line, velocity with a diagonal line, and acceleration with a curve.

Average speed= Total distance/Total time

Explanation:

6 0

3 years ago

Analyze how friction can be both a positive and negative aspect on our lives

denpristay [2]

Positive - Friction allows us to create heat in a desperate situation, like being lost in the woods. If we didn't have friction, we would probably freeze to death.
Negative - Friction can also cause unwanted fires, such as forest fires. If friction didn't exist, we wouldn't have these.

8 0

4 years ago

The 4.0 -kg head of an ax is moving at 3 m/s when it strikes a log and penetrates 0.01m into the log. What is the average force

Elina [12.6K]

Answer:

the average force the blade exerts on the log is 1791.05 N.

Explanation:

Given;

mass of the ax head, m = 4 kg

speed of the ax, v = 3 m/s

depth traveled into the log, d = 0.01 m

The time to traveled through the depth;

$s = (\frac{u+v}{2} )t\\\\0.01 = (\frac{0+3}{2} )t\\\\0.01 = 1.5t\\\\t = \frac{0.01}{1.5} \\\\t = 0.0067 \ s$

The average force the blade exerts on the log;

$F = ma=\frac{mv}{t} = \frac{4 \times 3}{0.0067} = 1791.05 \ N \\\\$

Therefore, the average force the blade exerts on the log is 1791.05 N.

5 0

3 years ago

Just wondering if I did this right

Kisachek [45]

Yeah

All they are all correct

5 0

3 years ago