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muminat
3 years ago
12

Help with question b

Physics
1 answer:
givi [52]3 years ago
6 0

Answer:

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Explanation:

h

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How much power does an average person input into their body
LekaFEV [45]

The average human generates around 100 watts in an average day

3 0
4 years ago
Given that a pipe having a diameter of 1.5 feet and a height of 10 feet, what is the psi at 5 feet ?
grin007 [14]

Answer:

The pressure is 2.167 psi.

Explanation:

Given that,

Diameter = 1.5 feet

Height = 10 feet

We need to calculate the psi at 5 feet

Using formula of pressure at a depth in a fluid

Suppose the fluid is water.

Then, the pressure is

P=\rho g h

Where, P = pressure

\rho = density

h = height

Put the value into the formula

P=1000\times9.8\times1.524

P=14935.2\ N/m^2

Pressure in psi is

P=2.166167621\ psi

P=2.167\ psi

Hence, The pressure is 2.167 psi.  

4 0
3 years ago
The normal force equals the magnitude of the gravitational force as a roller coaster car crosses the top of a 40-m-diameter loop
iogann1982 [59]

Answer:

Explanation:

Given

Diameter d=40\ m

radius r=20\ m

From diagram, at top point

If Normal force is equal to Gravitational force

N=mg

where N=normal reaction

m=mass of car

Normal reaction will provide centripetal force

N=\frac{mv^2}{r}

thus

\frac{mv^2}{r}=mg

v=\sqrt{2gr}

v=\sqrt{2\times 9.8\times 20}

v=19.79\ m/s              

5 0
3 years ago
The maximum range of projectle is R° if projected at angle of 45°. It'll be 300% of Range of projectile if projected at angle? a
geniusboy [140]

Answer:

The maximum range is 300% of the range of the projectile is projected at an angle of 9.74°.

None of the options are correct.

Explanation:

Normally, ignoring air resistance, for projectile motion, the range (horizontal distance travelled) of the motion is given as

R = (u² sin 2θ)/g

where

u = initial velocity of the projectile

θ = angle above the horizontal at which the projectile was launched

g = acceleration due to gravity = 9.8 m/s²

The range is maximum when θ = 45°

R when θ = 45° is

R = (u² sin 90°)/g = (u²/g)

We are then told that this maximum range is 300% of the value obtainable for the range at a particular angle

Maximum range = 3R

(u²/g) = 3(u² sin 2θ)/g

Sin 2θ = (1/3)

2θ = sin⁻¹ (1/3) = 19.47°

θ = (19.47°/2) = 9.74°

Hope this Helps!!!

4 0
3 years ago
Paul is given assistance with finding a job and an apartment, and learning to correctly take his medications. Paul is most likel
o-na [289]
The answer is B. Insight therapy
6 0
4 years ago
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