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3 years ago

Explain how earths lithosphere and asthenosphere work together

Physics

1 answer:

Aleonysh [2.5K]3 years ago

3 0

Answer:

The lithosphere can affect the atmosphere when tectonic plates move and cause an eruption, where magma below spews up as lava above.

Explanation:

The lithosphere is broken into giant plates that fit around the globe like puzzle pieces. These puzzle pieces move a little bit each year as they slide on top of a somewhat fluid part of the mantle called the asthenosphere.

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The rigid beam is supported by the three suspender bars. bars ab and ef are made of aluminum and bar cd is made of steel. if eac

faltersainse [42]

Answer:

Pmax = 67.5 KN

Explanation:

We need to calculate the maximum allowable value of P for both aluminum and steel bars.

FOR STEEL BARS:

Since,

(σallow)st = (Pmax)st/A

where,

(σallow)st = maximum allowable stress of steel bar = 200 MPa = 2 x 10⁸ Pa

A = Cross-sectional area of steel bar = 450 mm² = 0.45 x 10⁻³ m²

(Pmax)st = Maximum allowable force for steel bar = ?

Therefore,

2 x 10⁸ Pa = (Pmax)st/0.45 x 10⁻³ m²

(Pmax)st = (2 x 10⁸ Pa)(0.45 x 10⁻³ m²)

(Pmax)st = 9 x 10⁴ N = 90 KN

FOR Aluminum BARS:

Since,

(σallow)al = (Pmax)al/A

where,

(σallow)al = maximum allowable stress of Al bar = 150 MPa = 1.5 x 10⁸ Pa

A = Cross-sectional area of Aluminum bar = 450 mm² = 0.45 x 10⁻³ m²

(Pmax)al = Maximum allowable force for Aluminum bar = ?

Therefore,

1.5 x 10⁸ Pa = (Pmax)al/0.45 x 10⁻³ m²

(Pmax)al = (1.5 x 10⁸ Pa)(0.45 x 10⁻³ m²)

(Pmax)al = 6.75 x 10⁴ N = 67.5 KN

Since,

(Pmax)al < (Pmax)st

Therefore,

The maximum allowable force will be:

Pmax = (Pmax)al

Pmax = 67.5 KN

3 0

4 years ago

What is the kinetic energy of a 8kg cart pushed at a rate of 2 m/s? Help please

GuDViN [60]

The kinetic energy of the cart is 16 J

Explanation:

The kinetic energy of an object is the energy possessed by the object due to its motion. Mathematically, it is calculated as:

$K=\frac{1}{2}mv^2$

where

m is the mass of the object

v is its speed

For the cart in this problem,

m = 8 kg is its mass

v = 2 m/s is its speed

Substituting, we find its kinetic energy:

$K=\frac{1}{2}(8)(2)^2=16 J$

Learn more about kinetic energy:

brainly.com/question/6536722

#LearnwithBrainly

7 0

3 years ago

Which section of the brain controls language

Alenkasestr [34]

The left hemisphere of the brain is responsible for language and speech

6 0

4 years ago

Read 2 more answers

A clay ball (mass = 0.25kg) has a rightward momentum of +1.75 kg∙m/s. A second clay ball (mass = 0.25 kg) has a leftward momentu

julia-pushkina [17]

$\begin{gathered} E1=\frac{1}{2}m_1v_1^2+\frac{1}{2}m_1v_2^2 \\ where: \\ m_1=m_2=0.25kg \\ v_1=7m/s \\ v_2=-7m/s \\ so: \\ E1=\frac{1}{2}0.25(7^2)+\frac{1}{2}0.25(7^2) \\ E1=6.125+6.125 \\ E1=12.25J \end{gathered}$

Answer:

d. 12.25J

------------------------

According to the conservation of energy:

$\begin{gathered} E1=E2 \\ so: \\ E2=12.25J \end{gathered}$

Answer:

b. 12.25

-------------------------------

$P1=m_1v_2+m_2v_2=+1.75-1.75=0$

Answer:

d. 0 kg∙m/s

-----------------------------------------

Using conservation of momentum:

$\begin{gathered} P1=P2 \\ so: \\ P2=0 \end{gathered}$

Answer:

b. 0 kg•m/s

3 0

1 year ago

You stand on a spring scale on the floor of an elevator. Of the following, the scale shows the highest reading when the elevator

Virty [35]

Answer:

move upward with increasing speed

I draw fbd diagram , see in figure

when lift going upward -

F - mg = ma

f = m( a + g)

scale so highest reading

5 0

4 years ago