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3 years ago

12

SI UNIT OF GRAVITY is the

1 answer:

pickupchik [31]3 years ago

4 0

Answer:

G

Explanation:

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if change in blood pressure between the brain and the feet is 1.88×10^4 pa .what will be the volume flow rate from head to feet

klio [65]

Answer: $3765.66 \frac{m^{3}}{s}$

Explanation:

We can solve this problem using the <u>Poiseuille equation</u>:

$Q=\frac{\pi r^{4}\Delta P}{8\eta L}$

Where:

$Q$ is the Volume flow rate

$r=23 cm \frac{1 m}{100 cm}=0.23 m$ is the effective radius

$L=6 ft \frac{0.3048 m}{1 ft}=1.8288 m$ is the length

$\Delta P=1.88(10)^{4} Pa$ is the difference in pressure

$\eta=3(10)^{-3} Pa.s$ is the viscosity of blood

Solving:

$Q=\frac{\pi (0.23 m)^{4}(1.88(10)^{4} Pa)}{8(3(10)^{-3} Pa.s)(1.8288 m)}$

$Q=3765.66 \frac{m^{3}}{s}$

4 0

4 years ago

What is the source of the input energy for the cogeneration of energy?

grigory [225]

Cogeneration, combined heat and power (CHP<span>), is the simultaneous production of electrical and </span>thermal<span> energy from one fuel source. The waste heat from </span>electricity generation<span> is recovered and used for applications such as space heating and cooling, water heating, and industrial process heat.</span>

8 0

3 years ago

A projectile is launched from the surface of a planet (mass = 15 x 1024 kg, radius = R = 9.6 x 106 m). What minimum launch speed

Serjik [45]

Answer:

The minimum launch speed is 13366.40 m/s.

Explanation:

Given that,

Mass of planet $M=15\times10^{24}\ kg$

Radius $R= 9.6\times10^{6}\ m$

Height = 6R

We need to calculate the speed

Using relation between gravitational force and total energy

$-\dfrac{GMm}{6R+R}=\dfrac{1}{2}mv^2-\dfrac{GMm}{R}$

$\dfrac{}{}mv^2=\dfrac{GMm}{7R}-\dfrac{GMm}{R}$

$\dfrac{1}{2}mv^2=\dfrac{6GMm}{7R}$

$v^2=\dfrac{2\times6GM}{7R}$

Put the value into the formula

$v=\sqrt{\dfrac{2\times6\times6.67\times10^{-11}\times15\times10^{24}}{7\times9.6\times10^{6}}}$

$v=13366.40\ m/s$

Hence, The minimum launch speed is 13366.40 m/s.

6 0

3 years ago

Read 2 more answers

A block of wood has a mass of 120 g and a volume of 200cm what is the density of the word

Tanzania [10]

Density =mass/volume 120/200 =0.6 g/cm

8 0

3 years ago

Michael is biking on a trail and is accelerating at a rate of 1.2 m/s/s for 15 seconds. He began this part of his ride with a ve

Serhud [2]

Answer:

Michael's final velocity is 19.62 m/s.

Explanation:

We can find the final velocity of Michael by using the following kinematic equation:

$v_{f} = v_{0} + at$ (1)

Where:

$v_{f}$ : is the final velocity =?

$v_{0}$ : is the initial velocity = 1.62 m/s

a: is the acceleration = 1.2 m/s²

t: is the time = 15 s

By entering the above values into equation (1) we have:

$v_{f} = 1.62 m/s + 1.2 m/s^{2}*15 s$

$v_{f} = 19.62 m/s$

Therefore, Michael's final velocity is 19.62 m/s.

I hope it helps you!

7 0

3 years ago