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3 years ago

14

Two people person A and person B lift the same amount of weight but person A lifts it in a shorter amount of time who has more p

ower and why

1 answer:

const2013 [10]3 years ago

3 0

Person A has more muscular strength then person B. B has muscular endurance.

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WILL UPVOTE 5 TIMES IF YOU ANSWER!!

Nostrana [21]

The answer is astrology

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3 years ago

Which statement about a pair of units is true? A yard is shorter than a meter. Amile is shorter than a kilometer. A foot is shor

lubasha [3.4K]

Answer:

A yard is shorter than a meter.

Explanation:

>>>1 yard is 0.914 m, so a yard is shorter than a meter.

>>>1 mile is 1.609 km, so a mile is longer than a kilometer

>>>1 foot is 30.48cm, so a foot longer than a centimeter

>>> 1 inch is 2.54cm, so an inch is longer than a centimeter

From the above relationships, only a yard is shorter than a meter is true. Others are wrong.

3 0

3 years ago

A man kicks the 150-g ball such that it leaves the ground at an angle of 60° and strikes the ground at the same elevation a dist

egoroff_w [7]

Answer:

$313.92\ \text{m/s}$

$47.088\ \text{kg m/s}$

Explanation:

m = Mass of ball = 150 g

$\theta$ = Angle of kick = $60^{\circ}$

$x$ = Displacement of ball in x direction = 12 m

Range of projectile is given by

$x=\dfrac{u\sin^2\theta}{2g}\\\Rightarrow u=\dfrac{2xg}{\sin^2\theta}\\\Rightarrow u=\dfrac{2\times 12\times 9.81}{\sin^260^{\circ}}\\\Rightarrow u=313.92\ \text{m/s}$

The velocity of the ball instantly after the man kicks the ball is $313.92\ \text{m/s}$

Impulse is given by

$J=mu\\\Rightarrow J=0.15\times 313.92\\\Rightarrow J=47.088\ \text{kg m/s}$

The impulse of his foot on the ball is $47.088\ \text{kg m/s}$ .

3 0

3 years ago

Which of the following is a primary source?

Anarel [89]

The answer is C :), I think.

6 0

2 years ago

How often should muscle strengthening activities be performed?

LekaFEV [45]

Answer:

once a week

Explanation:

once a week so answer B

3 0

3 years ago

Read 2 more answers