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kirill115 [55]
3 years ago
13

1. A man walks round a park, first walking north for 80m, then turning right and walking

Physics
1 answer:
drek231 [11]3 years ago
8 0

Answer:

Total distance travelled = 210m

Explanation:

Distance travelled = 80m + 50m + 10m + 70m

                               = 210m

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Which are different ways ultrasound technology may be used? Check all that apply.
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Answer:

Detecting kidney stones and cancer, visualizing fetus in the womb

Explanation:

Ultrasound technology can be used in detecting kidney stones and cancer throat and also visualizing a fetus in the womb. The use of ultrasound for detecting kidney stones started around 1961. Ultrasound has also been used in detecting various types of cancer including throat cancer. The use of ultrasound in knowing the gender of fetus in hospitals has been used for a long time. However, it's not used for cleaning dirty surgical tools.  therefore, choice A, D and E apply.

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3 years ago
Which two options are forms of kinetic energy?
juin [17]

Answer:

B. Thermal energy

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Explanation:

Thermal and sound energy is kinetic energy.

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Sound energy is transmitted by the vibration of the particles in the air. The vibration leads to movement of the particles and hence, kinetic energy is produced.

Thermal energy originates as a result of the temperature differences in a body. This temperature difference leads to the increase in the kinetic energy of some particles which also causes vibration and motion of the particles.

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Answer:

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All living organisms need energy to grow and reproduce, maintain their structures, and respond to their environments. Metabolism is the set of life-sustaining chemical processes that enables organisms transform the chemical energy stored in molecules into energy that can be used for cellular processes.

Explanation:

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