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Makovka662 [10]
3 years ago
6

When opening a door, you push on it perpendicularly with a force of 57.0 n at a distance of 0.470 m from the hinges. what torque

(in n·m) are you exerting relative to the hinges? (enter the magnitude.)?
Physics
1 answer:
TiliK225 [7]3 years ago
3 0
<span>Torque = force * distance from axis of rotation. Multiply. If it's not perpendicular, you multiply that with the sine of the angle between the force and the perpendicular direction. T= 0.470*57*Sin 90 = 26.79 N</span>
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Red Sox designated hitter, David Ortiz, swings at a 0.15 kg baseball and accelerates it at a rate of 3.0 • 10^4 m/s^2. How much
aivan3 [116]

Answer:

Explanation:

A lot.  That's why he was one of Boston's star hitters.

m = 0.15 kg

a = 3.0 * 10^4

F = ?

F = 0.15 * 3*10^4

F = 0.45 * 10^4

F = 4.5 * 10^3 Newtons

You should always express scientific notation as a number between 1 and 10 or 1 < x < 10. The power will determine the exact value of the number expressed as a scientific notation.

3 0
2 years ago
How many minutes will it take to drive to los angeles from san francisco if an average speed of 72mi/hr is maintained?
Sholpan [36]
The distance between Los Angeles and San Francisco is approximately 381.9mi. 
Divide this distance by the speed.
381.9/72 = 5.3
You are left with the time in hours. To convert to minutes, multiply by 60. 
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Therefore, it will take 318.25 minutes.
6 0
3 years ago
Flow around curved height contours requires the incorporation of the centrifugal force. What is the general term to describe the
lilavasa [31]

Answer: Gradient Wind

Explanation:

Gradient wind, is the wind that accounts for air flow along a curved trajectory. It is an extension of the concept of geostrophic wind; for example the wind assumed to move along straight and parallel isobars (lines of equal pressure). The gradient wind represents the actual wind better than the geostrophic wind, especially when both wind speed and trajectory curvature are large, because they are in hurricanes and jet streams.

4 0
3 years ago
Light traveling through plate glass (n = 1.52) approaches the surface, i.e. the air-glass interface. What minimum incident angle
Ilia_Sergeevich [38]

Answer:

41°

Explanation:

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For total internal reflection, the angle of refraction in rarer medium is 90°.

r = 90°

Let the angle of refraction in denser medium, that means in glass is i.

By use of Snell's law

refractive  index of rarer medium with respect to denser medium, that means refractive index of air with respect to glass = 1 / n

And

\frac{1}{n}=\frac{Sin i}{Sin r}

\frac{1}{1.52}=\frac{Sin i}{Sin 90}

0.658= Sin i

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Thus, the angle of incidence should be 41°.

8 0
3 years ago
Part A
Alona [7]

Newton thinks that object falls due to gravity whereas Einstein thinks gravity is not the reason behind it.

<h3>How did Einstein’s and Newton’s theories differ in terms of explaining the cause of gravity?</h3>

Newton concluded that objects fall because they are pulled by Earth's gravity. Einstein's thinks that these objects do not fall due to gravity. According to Einstein, these objects and Earth just freely move in a curved spacetime

So we can conclude that Newton thinks that object falls due to gravity whereas Einstein thinks gravity is not the reason behind it.

Learn more about gravity here: brainly.com/question/940770

#SPJ1

7 0
2 years ago
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