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VikaD [51]
3 years ago
11

in terms of mechanical advantage and velocity ratio write an expression for the efficiency of a simple machine​

Physics
1 answer:
mixer [17]3 years ago
8 0

Answer:

Efficiency = (MA/VR) ×100%

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how much force does it take to push a 62.0 kg dresser at a constant speed across a carpet with µk=0.238. (unit=N)
Mama L [17]

Answer:

158.76504N

Explanation:

F = µk * m * g

F = 0.238 * 62 * 9.81

F = 158.76504N

3 0
3 years ago
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Estefan has determined his BMI at 31. Explain how he can apply the FITT training principles to improve his body composition.
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Frequency:

Cardio : Five or more 
HIIT: 5 or 4

Strength: 2-3 days on non-consecutive days a week
 
Intensity:
How hard you work during the session

For cardio : workout at your target heart rate.
For HIIT: varying intensity from high to low or rest ( no slow pace)
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Time:

For cardio 30- 60 min
For HIIT 45 min (short periods of bursts followed by rest)

For strength depends on the amount of weight.

Type:

Either cardio, HIIT or strength training (resistance training) 

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7 0
4 years ago
What is the length of the x-component of the vector shown below?
kondaur [170]

If you shine a light straight down onto that vector, then the length of its shadow on the x-axis is

x-component = 88 · cosine(13°)

x-component = 88 · (0.9744)

<em>x-component = 85.74</em>

5 0
3 years ago
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What is power?
Blizzard [7]

Answer:

D

Explanation:

P=Work/Time

The rate at which work is done matches that.

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4 years ago
Plzzzzz help me plzzz
yarga [219]
8 miles per hour

(extra space)
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3 years ago
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