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algol [13]
3 years ago
12

One of the main reasons steel is used more widely than iron is because it’s lighter softer stronger than iron

Physics
2 answers:
Sonja [21]3 years ago
7 0
A, Because it is lighter than Iron

Amiraneli [1.4K]3 years ago
6 0

Answer: stronger than iron

Explanation: Steel is an alloy of iron mixed with small quantities of carbon.  Iron being a pure metal is soft as the atoms can slip over one another due to the presence of free electrons.

Addition of carbon to iron, makes the iron hard as the carbon hinders the movement of atoms past one another. The tensile strength or resistance to break under applied force for steel gets more as compared to iron.

You might be interested in
Pressure and temperature ______ with depth below Earth’s surface.
ivolga24 [154]

Answer:

Pressure increases as you move deeper below earth's surface.

Tempurature  increases as you move deeper below earth's surface.

Hope this helps!

Explanation:

3 0
4 years ago
A gymnast of mass 62.0 kg hangs from a vertical rope attached to the ceiling. You can ignore the weight of the rope and assume t
MrRissso [65]

Answer:

a) T = 608.22 N

b) T = 608.22 N

c) T = 682.62 N

d) T = 533.82 N

Explanation:

Given that the mass of gymnast is m = 62.0 kg

Acceleration due to gravity is g = 9.81 m/s²

Thus; The weight of the gymnast is acting downwards and tension in the string acting upwards.

So;

To calculate the tension T in the rope if the gymnast hangs motionless on the rope; we have;

T = mg

= (62.0 kg)(9.81 m/s²)

= 608.22 N

When the gymnast climbs the rope at a constant rate tension in the string is

= (62.0 kg)(9.81 m/s²)

= 608.22 N

When the gymnast climbs up the rope with an upward acceleration of magnitude

a = 1.2 m/s²

the tension in the string is  T - mg = ma (Since acceleration a is upwards)

T = ma + mg

= m (a + g )

= (62.0 kg)(9.81 m/s² + 1.2  m/s²)

= (62.0 kg) (11.01 m/s²)

= 682.62 N

When the gymnast climbs up the rope with an downward acceleration of magnitude

a = 1.2 m/s² the tension in the string is  mg - T = ma (Since acceleration a is downwards)

T = mg - ma

= m (g - a )

= (62.0 kg)(9.81 m/s² - 1.2 m/s²)

= (62.0 kg)(8.61 m/s²)

= 533.82 N

5 0
3 years ago
To calculate the change in kinetic energy, you must know the force as a function of _______. The work done by the force causes t
aliya0001 [1]

To calculate the change in kinetic energy, you must know the force as a function of position. The work done by the force causes the kinetic energy change

Explanation:

The work-energy theorem states that the change in kinetic enegy of an object is equal to the work done on the object:

\Delta E_k = W

where the work done is the integral of the force over the position of the object:

W=\int F(x) dx

As we see from the formula, the magnitude of the force F(x) can be dependent from the position of the object, therefore in order to solve correctly the integral and find the work done on the object, it is required to know the behaviour of the force as a function of the position, x.

6 0
3 years ago
are the two sources in phase or out of phase? explain how you can tell from the diagram. if the two sources are out of phase, gi
pychu [463]

If two sources emit waves with the same wavelength and a constant phase difference ϕ, they are said to be coherent.

<h3>What is coherent source ?</h3>
  • If the frequency and waveform of two wave sources are the same, they are coherent. Waves' optimal quality of coherence makes stationary interference possible.
  • When the phase difference between two beams of light is constant, they are coherent; if the phase difference is random or changes, they are noncoherent.
  • The concept of a superpositioning at the core of quantum physics and quantum computing is referred to as "quantum coherence." Quantum coherence specifically considers a scenario in which a wave property of an item is split in two and the two waves coherently interfere with one another.
  • The interference visibility, which examines the size of the interference fringes in relation to the input waves, is an easy way to measure the degree of coherence; correlation functions provide a precise mathematical definition of the degree of coherence.

To learn more about coherent refer :

brainly.com/question/24768967

#SPJ4

4 0
1 year ago
A hawk flies in a horizontal arc of radius 12.0 m at constant speed 4.00 m/s. (a) Find its centripetal acceleration. (b) It cont
olya-2409 [2.1K]

Answer:

a) a_c= 1.33 m/s^2

b) a= 1.79 m/s²

   θ = 41.98⁰

Explanation:

arc radius  = 12 m

constant speed = 4.00 m/s

(a) centripetal acceleration

     a_c=\frac{v^2}{R}

     a_c=\frac{4^2}{12}

                  = 1.33 m/s²

(b) now we have given

        a_t= \ 1.20 m/s^2

        now,

         a=\sqrt{a^2_c+ a^2_t}

         a=\sqrt{1.33^2+ 1.20^2}

            a= 1.79 m/s²

 direction

\theta = tan^{-1}(\frac{a_t}{a_r} )

\theta = tan^{-1}(\frac{1.2}{1.33} )

     θ = 41.98⁰

5 0
3 years ago
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