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Alexxandr [17]
3 years ago
10

An experimental device imparts a force of magnitude F = 40 lb to the front edge of the rim at A to simulate the effect of a slam

dunk. Compute the moment of the force F about point O and about point B. The moments are positive if counterclockwise, negative if clockwise. Finally, locate a point C from the base at O to the location on the ground where the force imparts zero moment. The distance d from point O to point C is positive if C is to the right of O, and negative if to the left.

Physics
1 answer:
krok68 [10]3 years ago
6 0

Please see attached picture for answer an explanation.

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Provident fund Rs. 100.000,
yulyashka [42]

Answer:

whatz dis 4

Explanation:

8 0
3 years ago
Review. For a certain type of steel, stress is always proportional to strain with Young's modulus 20 × 10¹⁰ N/m² . The steel has
Nostrana [21]

The strain in the rod is 2.37\times 10^{-3}

Given:

Young's modulus, Y = 20 \times 10^{10}\;N/m^{2}

Steel density, \rho = 7.86 \times 10^{3}\;kg/m^{3}

Length of the rod, L = 80 cm = 0.800m

The speed of the wave in the rod is,

$v = \sqrt{\frac{Y}{\rho}} = \sqrt{\frac{20\times 10^{10}\ \mathrm{N/m^2}}{7.86\times 10^3\ \mathrm{kg/m^3}}} = 5044\ \mathrm{m/s}$

Hence the time taken by the wave to travel the end of the rod is,

$t=\frac{L}{v} = \frac{0.800\ \mathrm{m}}{5044\ \mathrm{m/s}} = 1.58\times 10^{-4}\ \mathrm{s}$

The velocity of the rod is, $v_r = 12.0\ \mathrm{m/s}$

The other end will keep moving after the front end hits the wall until the wave reaches the other end, given the period determined by the above problem.

As a result, before the wave reaches the end of the rod, it has traveled a distance of

$\Delta L = v_r t = (12.0\ \mathrm{m/s}) (1.58\times\ \mathrm{s}) = 1.90\times 10^{-3}\ \mathrm{m} = 1.90\ \mathrm{mm}$

The strain in the rod is given by,

$\frac{\Delta L}{L} = \frac{1.90\times 10^{-3}\ \mathrm{m}}{0.800\ \mathrm{m}} = 2.37\times 10^{-3}

Hence, the strain in the rod is 2.37\times 10^{-3}.

<h3>What is strain?</h3>

In terms of physics, strain is defined as the fractional modification of configuration.

A system's reaction to an applied stress is called a strain, according to 2. A force that loads a material results in a stress that leads to deformation. Formula for a strain

Change in configuration equals strain first arrangement

It is a dimensionless quantity that lacks a unit.

Change in object size / original object size is known as strain.

It is a quantity without units or dimensions.

Strain kind.

Object length change divided by starting object length equals longitudinal strain.

L/L stands for longitudinal strain.

Change in object volume divided by starting object volume equals longitudinal strain

To know more about Strain visit:

brainly.com/question/19317733

#SPJ4

7 0
2 years ago
Which stars are most common in the galaxy? why don't we see many of them?
Alina [70]
Scientists think 20 out of the 30 stars nearest to Earth are red dwarfs; however, none can be seen wuth the naked eye. The closest star ti the sun, Proxina Centauri, is a Red Dwarf.
4 0
3 years ago
Which terrestrial planet would have its surface temperature the most dramatically changed if its greenhouse gases were removed f
Veronika [31]
Venus. The atmosphere of Venus, in fact, is full of carbon dioxides, the main contributor to the dramatic greenhouse effect on the planet, which causes the surface temperature of Venus to reach 460 degrees Celsius. Without this effect, the surface temperature of Venus will be more similar to Earth's one (still a bit higher, given the smaller distance from the Sun).
3 0
4 years ago
Assume that an intercontinental ballistic missile goes from rest to a suborbital speed of 6.50 km/s in 60.0 s (the actual speed
olasank [31]

Answer:

Average acceleration is (11.05)g\ m/s^2

Explanation:

It is given that,

Initial velocity, u = 0

Final velocity, v = 6.5 km/s = 6500 m/s

Time taken, t = 60 s

Acceleration, a=\dfrac{v-u}{t}

a=\dfrac{v}{t}  

a=\dfrac{6500\ m/s}{60}  

a=108.33\ m/s^2

Since, g=9.8\ m/s^2

So, a=(11.05)g\ m/s^2

So, the angular acceleration of the missile is (11.05)g\ m/s^2. Hence, this is the required solution.

4 0
3 years ago
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