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Roman55 [17]
3 years ago
13

The total energy of a system remains unchanged during a cycle. a)- True b)- False

Engineering
1 answer:
frosja888 [35]3 years ago
5 0

Answer: True

Explanation: It is correct that during a cycle the energy of the system remains unchanged. Total energy consist of the initial energy and the final energy in a system and both remain equal in a system whether they are in cycle or not  ans also according to the law of conservation of energy ,total energy cannot be destroyed or created. Thus the while a cycle goes on energy will remain the same.

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Consider an experiment in which the number of pumps in use at each of two seven-pump gas stations was determined. Call the two g
MakcuM [25]

Answer: Determine the number of pumps in each of the two six-pump gas stations.

• X = the total No. of pumps that are in use at the 2 stations

• Y = the difference between the No. of pumps in utilization at station 1 and the

NO. of pumps in use at the station 2

• U = the max number of pumps in use at the 2 stations

W (observed) = (3, 4)

X (W) = 3 + 4 = 7

Y (W) = 3 − 4 = − 1

U (W) = max (3, 4) = 4

8 0
3 years ago
What were the trade-offs and opportunity costs of one of Teasha’s economic decisions?
sergij07 [2.7K]

Answer:

Opportunity cost she loses the chance to get the degree. The trade- off is she gets to start a business.

Explanation:

3 0
3 years ago
Without motorcycle riders are at risk of severe injury in a crash ?
nekit [7.7K]

Answer:

The correct option is;

A. proper protection

Explanation:

Motorcycle riders ride the motorcycle while at some level of speed while  having the entire body exposed to be a major part of any collision.

Injuries sustained from motorcycle accidents are several times more severe than injuries sustained by occupants of a car that is fully protected by the metallic panel in the same and even more serious accident scenarios

Hence, motorcycle riders require adequate protection by putting on available motorcyclist safety gear

Therefore, to reduce the risk of severe injury n a crash, motorcycle riders require proper protection.

5 0
3 years ago
Read 2 more answers
For a Cu-Ni alloy containing 53 wt.% Ni and 47 wt.% Cu at 1300°C, calculate the wt.% of the alloy that is solid and wt.% of allo
Zina [86]

Answer:

Hello your question is incomplete attached below is the complete question

answer: wt.% of alloy that is solid = 61.5%

             wt.% of allot that is liquid = 38.5%

Explanation:

To determine the wt.% of the alloy that is solid

= \frac{R}{R +S } * 100

=  \frac{53-45}{58-45} * 100  = 61.5%

To determine the wt.% of the alloy that is liquid

= \frac{S}{S+R} * 100\\

= \frac{58-53}{58-45} *100 = 38.5%

attached below is a free hand sketch as well

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3 years ago
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Bending effect!! Whenever the orientation of the diffracting planes changes when the diffracting planes bend, the contrast changes
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