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3 years ago

15

If f3=0 and f1=12n, what does the magnitude of f? 2 have to be for there to be rotational equilibrium? answer numerically in new

tons to two significant figures.

1 answer:

lisov135 [29]3 years ago

4 0

Not to good with math im a language and history kinda guy sorry

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If the average gauge pressure in the vein is 12200 Pa, what must be the minimum height of the bag in order to infuse glucose int

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Answer:

h = 1.22 m

Explanation:

Given:

Pressure in the vein = 12200 Pa

Specific gravity of the liquid = 1.02

now,

the pressure due to a fluid is given as:

P = pgh

where,

P is the pressure,

ρ is the density of fluid = specific gravity x density of water = 1.02 x 1000 kg/m³

ρ = 1020 kg/m³

g is the acceleration due to the gravity = 9.81m/s²

h is the height

thus,

h = P/pg = $\frac{12200}{1020\times 9.8}=1.22 m$

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3 years ago

The horizontal surface on which the objects slide is frictionless. If M = 1.0 kg and the magnitude of the force of the small blo

sweet-ann [11.9K]

Answer:

The force is 7.8 N.

Explanation:

Given that,

Mass of small object = 2M

Mass of large object = 4M

Here, M = 1.0 kg

Force of the small block = 5.2 N

We need to calculate the acceleration of 4 kg block

Using formula of force

$F=ma$

$a=\dfrac{F}{m}$

$a=\dfrac{5.2}{4}$

$a=1.3\ m/s^2$

The 2 kg block is also accelerating at 1.3 m/s², making a total of 6 kg.

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$F=ma$

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$F=6\times1.3$

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Hence, The force is 7.8 N.

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3 years ago

A 700 kg racecar slowed from 30 m/s to 15 m/s. What is the change in momentum

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Momentum = (mass) x (speed)

Original momentum = (700 kg) x (30 m/s) = 21,000 kg-m/s

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Change in momentum = - 10,500 kg-m/s .

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3 years ago

The color of an object we see is determined by the

aksik [14]

Answer:

An object appears white when it reflects all wavelengths and black when it absorbs them all. Red, green and blue are the additive primary colors of the color spectrum. Combining balanced amounts of red, green and blue lights also produces pure white.

Explanation:

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3 years ago

Calculate the first and second velocities of the car with four washers attached to the pulley, using the formulas v1 = 0.25 m /

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Answer:

0.28 that is for the 25 and for 50 is 0.56

Explanation:

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3 years ago

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