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Flura [38]
3 years ago
12

For this problem, the applied force P must be calculated such that the allowable stress of 180 MPa is not exceeded in either wir

e. The correct choice for P will be: For this problem, the applied force must be calculated such that the allowable stress of is not exceeded in either wire. The correct choice for will be: The larger value The smaller value The values of P will be the same in either wire None of the above
Physics
1 answer:
Maru [420]3 years ago
4 0

Answer:

we do not exceed that value, the force of having a value less than that calculated

Explanation:

Pressure is defined by

           P = F / A

           F = P A

           F = 180 10⁶ A

for an exact calculation the area of ​​the wire is needed

So that we do not exceed that value, the force of having a value less than that calculated

therefore the correct answer is "a smaller value"

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When a ray is incident upon a plane mirror as shown in the diagram, what is the angle of refraction?
Anna11 [10]

Answer:

0 degrees

Explanation:

this is because when the light ray hits a surface a medium at 90 degrees then the angle of incidence = 0 , thus light doesn't bend when it enters the medium, no bending means angle of refraction is 0 degrees

hope this helps ,please mark it

8 0
3 years ago
Suppose the moon were held in its orbit not by gravity but by the tension in a massless cable. You are given that the period of
Ksenya-84 [330]

Answer:

Tension in the cable = 200.655 × 10^(18) N

Explanation:

The tension in the cable will be the force on the string which is caused by when it holds against the centripetal acceleration.

Now, the formula for centripetal acceleration is given by;

a = v²/R

Now, let's find the velocity.

The circumference is 2πR

We are given that R = 3.85 x 10^(8) m

So, Circumference = 2 × π × 3.85 x 10^(8) = 24.19 × 10^(8) m

We are told the period of the moon orbit is 27.3 days

Distance travelled per day = Circumference/ period

Distance travelled per day = (24.19 × 10^(8))/27.3 = 88608058.608 m/day

Now, a day has 24 hours = 24 × 60 × 60 = 86400 seconds

Thus,

Distance travelled per seconds =

88608058.608/86400 = 1025.556 m/sec

So, from a_c = v²/r,

a_c = 1025.556²/3.85x10^8

a_c = 0.00273 m/s²

Now, Force = Mass x Acceleration = ma

We are given mass = 7.35 x 10^(22) kg

Plugging in the relevant values, we have;

F = 0.00273 x 7.35 x 10^(22)

F = 200.655 × 10^(18) N

5 0
3 years ago
A boy jogs 250 meters in 110s what is the average speed
Artyom0805 [142]
The rule to get the average speed is as follows:
average speed = average distance / average time

We are given that:
distance = 250 m
time = 110 sec

Substitute with the givens in the above equation to get the average speed as follows:
average speed = 250/110 = 25/11 meters/sec
3 0
3 years ago
For the graph above, what is the independent variable? What is the dependant variable?
posledela
Time/sec. the x-axis is always the independent variable.
3 0
3 years ago
A sample of gas is enclosed in a container of fixed volume. Identify which of the following statements are true. Check all that
motikmotik

Answer:

B. If the container is cooled, the gas particles will lose kinetic energy and temperature will decrease.

C. If the gas particles move more quickly, they will collide more frequently with the walls of the container and pressure will increase.

E. If the gas particles move more quickly, they will collide with the walls of the container more often and with more force, and pressure will increase.

#FreeMelvin

7 0
4 years ago
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