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stealth61 [152]
3 years ago
8

What should stainless steel be considered when using it?

Physics
1 answer:
disa [49]3 years ago
4 0
Strength, ductility, and toughness are the three top mechanical qualities that should be given importance. Stainless steel comes with 10–30% chromium as its alloying element. It is this element that helps it resist corrosion.
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A 1500 kg car drives around a flat, 50 m diameter track, starting from rest. The drive wheels supply a small but steady 525 N fo
krok68 [10]

Answer:

No. of revolutions before the car slides off is 2

Solution:

As per the question:

Mass of the car, m = 1500 kg

Diameter of the track, d = 50 m

Force, F = 525 N

Coefficient of static friction, \mu_{s} = 0.90

Now,

The acceleration in the tangential direction is given by:

F = ma_{T}

525 = 1500\times a_{T}

a_{T} = 0.35\ m/s^{2}

Here, the centripetal force is given by the friction force:

\frac{mv^{2}}{R} = \mu mg

Thus

v = \sqrt{\mu gR} = \sqrt{0.90\times 9.8\times 25} = 14.849\ m/s

Time taken by the car is given by:

v = v' + at

v' = initial velocity = 0

Thus

t = \frac{v}{a} = \frac{14.849}{0.35} = 42.426\ s

Total Distance covered, d is given by:

v^{2} = v'^{2} + 2ad

14.849^{2} = 0^{2} + 2\times 0.35d

d = 341.99 m

Distance covered in 1 revolution is the circumference of the circle, d' = 2\pi R

Now, the no. of revolutions is given by:

n = \frac{d}{d'} = \frac{314.99}{2\pi \times 25} = 2

5 0
3 years ago
Scientific laws explain_____.
saveliy_v [14]
A pattern in nature observed over and over
8 0
3 years ago
Read 2 more answers
In an experiment, the explanation of the expected outcome, based on research, is the _______________.
vladimir1956 [14]
C. Hypothesis
The hypothesis is presented as an explanation of the observed results.
7 0
3 years ago
PLEASE HELP WILL GIVE BRAINLESS ANSWER
muminat
Polar bears because they thrive in arctic conditions. But interestingly enough there have been some claims that they might be mating with grizzly bears to pass their genes on. But don't know the latest on that.

probably the arctic foxes too and the Greenland shark. Seabirds As Well

hope that helps :))
4 0
3 years ago
a ball of mass 0.5 kg is released from rest at a height of 30 m. how fast is it going when it hits the ground? acceleration due
Vera_Pavlovna [14]

Answer:

24.25m/s

Explanation:

m = 0.5kg

u ( initial velocity) = 0m/s

v ( final velocity) =?

a = 9.8m/s^2

d (displacement) = 30m

Since u don't have time, u only have the choice to use this formula

V^2 = u^2 + 2ad

V^2 = 0 + 2 x 9.8 x 30

V^2 = 588

V = 24.25 m/s

8 0
3 years ago
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