Which action might lead scientists to develop new explanations about the

The pressure of a liquid is given by P = pgh. Calculate the pressure (in SI unit) if the

BlackZzzverrR [31]

Answer:

5000 Pa

Explanation:

First collect the data you've been given already and make sure to convert into the right units;

Density = 1 g/cm³ ...... 1000 Kg/ m³

acceleration due to gravity = 10 m/s²

Height = 50 cm......0.5 m

after collecting the data, use the formula to solve

pressure = pgh

 = 1000 × 10 × 0.5

 = 5000 Pa

hope this helps

6 0

3 years ago

The weightlifter's internal store of energy decreased when he lifted the bar.

Mumz [18]

Answer:

The energy returns to the weightlifter's muscles, where it is dissipated as heat.

Explanation:

The energy returns to the weightlifter's muscles, where it is dissipated as heat. As long as the weightlifter controls the weight's descent, their muscles are acting as an overdamped shock absorber, as if the weight were sitting on a piston containing very thick fluid, slowly compressing it downward (and slightly heating up the fluid in the process). Since muscles are complicated biological systems and not simple pistons, they require metabolic energy to maintain tension throughout the controlled descent, so the weightlifter feels like they're putting energy into the weight, even though the weight's gravitational potential energy is being converted into heat within the lifter's muscles.

5 0

3 years ago

If the current in a wire is 2.0 amperes and the potential difference across the wire is 10.0 volts, what is the resistance of th

avanturin [10]

Answer:

v=IR

10÷2 =R

R=5 Ohm

.. .

4 0

3 years ago

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How long would it take you to travel 163 meters at a speed of 33 meters per second?

Leviafan [203]

Speed=

$33m {s}^{ -1}$

Distance=

$163m$

speed= distance/time

So,

Time= distance/speed

Time= 163/33

$\huge\underline\mathtt\colorbox{cyan}{4.9393s}$

7 0

3 years ago

Can someone help me define “Celestial roles”? I can’t find it in my textbook, and when I look it up it just shows Marvel stuff.

Soloha48 [4]

Answer:

iam not getting about celestial roles ,here is the meaning of celestial

Explanation:

The first is something living such as an alien or an angel, whereas the latter is an inanimate object such as a star or a planet. Both, however, are from the sky. The word celestial is primarily used to describe things that have to do with the heavens such as angels, spirits, stars and planets.

4 0

3 years ago

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