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4 years ago

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A climber is attached to a vertical rope that has a tension of 1875 N. If the climber has a mass of 113 kg, what is the net forc

e on the climber? A. 542 N up B. 768 N up C. 1875 N down D. 768 N down

2 answers:

vitfil [10]4 years ago

6 0

Answer:

768 N up

Explanation:

verified

Svetach [21]4 years ago

5 0

B. 768 N up ...............................................................................................

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Plz help........................

hoa [83]

Answer:

The correct wording is

Pressure increases with the depth of the fluid.
A plane's engines produce thrust to push the plane forward.
A fluid can be a liquid or a gas.
A hydraulic device uses Pascal's principle to lift or move objects.
lift is the upward force exerted on objects by fluids.

Explanation:

1. As you go deeper into a fluid,<em> there is more of it on top of you; </em>therefore, the pressure excreted on you is greater.

2. A plane's engines pushes the air in opposite direction, which according to newton's third law, produces necessary force to move the plane forward.

3. <em>A fluid has no fixed shape,</em> and it deforms under the influence of external forces applied—liquid and gases fit into this definition.

4. Pascal's principle <em>says that pressure applied on one region of the fluid must equal pressure transmitted to another region of the same fluid</em>. This principle is used in a hydraulic device to exert forces on fluids to lift objects that would otherwise be difficult to move.

5. By definition, the upward force exerted by the fluids on objects is the lift.

7 0

3 years ago

Who created the idea of evolution?

melisa1 [442]

<span>Charles Darwin and Alfred Russel Wallace were the ones who had the idea of evolution in 1858!</span>

4 0

3 years ago

Read 2 more answers

The largest single publication in the world is the 1112-volume set of British Parliamentary Papers for 1968 through 1972. The co

Marat540 [252]

Answer:

$m_l=550\ kg$ is the mass of librarian.

Explanation:

Given:

mass of the system, $m_s=3.3\times 10^{3}\ kg$

velocity of librarian relative to the ground, $v_l=2.5\ m.s^{-1}$

velocity of the cart relative to the ground, $v_c=0.5\ m.s^{-1}$

N<u>ow using the principle of elastic collision:</u>

Net momentum of the system is zero.

$m_l\times v_l=(3300-m_l)\times v_c$

$m_l\times 2.5=(3300-m_l)\times 0.5$

$m_l=550\ kg$ is the mass of librarian.

6 0

3 years ago

Read 2 more answers

In a given lightning flash, the potential difference between a cloud and the ground is 2.86 times 109 V and the quantity of char

Nadya [2.5K]

Answer:

Explanation:

decrease in energy of the transferred charge

= Voltage x charge

= 2.86 x 10⁹ x 23.1

= 66.067 x 10⁹ J

the final speed of the automobile be V

1/2 m v² = 66.067 x 10⁹

v² = 66.067 x 10⁹ x 2 / 1519

= .08698 x10⁹

= 87 x 10⁶

v = 9.32 x 10³ m / s

3 0

3 years ago

A new planet is discovered that has twice the Earth's mass and twice the Earth's radius. On the surface of this new planet a per

kirza4 [7]

Answer:

option B

Explanation:

Radius of new planet,R' = 2R

Mass of the earth, M' = 2 M

R and M is the Radius and Mass of the earth.

Weight of the person on earth = 500 N

Weight of the person in the new planet = ?

We know acceleration due to gravity is calculated by using formula

$g = \dfrac{GM}{R^2}$

now, acceleration due to gravity on the new planet

$g' = \dfrac{GM'}{R'^2}$

$g' = \dfrac{G(2M)}{(2R)^2}$

$g' =\dfrac{1}{2} \dfrac{GM}{R^2}$

$g' =\dfrac{g}{2}$

here acceleration due to gravity is half in new planet, so weight will also be half on the new planet.

Weight on the new plane is equal to $\dfrac{500}{2}$ = 250 N

correct answer is option B

5 0

3 years ago