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3 years ago

Newton's First Law says that an object at rest will stay at rest, and an object in motion will stay in motion unless:

Physics

1 answer:

Verdich [7]3 years ago

6 0

Answer: Acted on by equal forces in opposite direction

Explanation:

Newton's First Law says that every body continue in its state of rest or constant speed on a straight line unless being acted upon by an external force.

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Which of these experiments would make use of qualitative data?

pychu [463]

"A study of the different amounts of time it takes water to evaporate completely"

7 0

2 years ago

Approximately 80% of the energy used by the body must be dissipated thermally. The mechanisms available to eliminate this energy

Semenov [28]

Answer:

the correct answer is c) 23 g

Explanation:

The heat lost by the runner has two parts: the heat absorbed by sweat in evaporation and the heat given off by the body

Q_lost = - Q_absorbed

The latent heat is

Q_absorbed = m L

The heat given by the body

Q_lost = M $c_{e}$ ΔT

where m is the mass of sweat and M is the mass of the body

m L = M c_{e} ΔT

m = M c_{e} ΔT / L

let's replace

m = 90 3.500 1.8 / 2.42 10⁶

m = 0.2343 kg

reduced to grams

m = 0.2342 kg (1000g / 1kg)

m = 23.42 g

the correct answer is c) 23 g

8 0

2 years ago

Elabora una tabla, como la del ejemplo, con los resultados obtenidos en los test que desarrollaste en actividades anteriores. Lu

rodikova [14]

Explanation:

Clear rendering reads;

"Make a table, like the one in the example, with the results obtained in the tests you carried out in previous activities. Then answer: What do these results indicate regarding your physical condition and how do they relate to your health? From your answers, consider the challenge of improving your physical condition by maintaining or improving your exercise routine or permanent practice of physical activity".

So the incomplete text above it seems you've been instructed to perform an experiment and then state your result/analysis.

8 0

3 years ago

Mechanical waves propagate or move through a medium because

Schach [20]

Because the move through water

7 0

2 years ago

A golf club hits a stationary 0.05kg golf ball with and average force of 5.0 x 10^3 newtons accelerating the ball at 44 meters p

maxonik [38]

Answer: The magnitude of impulse imparted to the ball by the golf club is 2.2 N seconds

Explanation: