All categories

3 years ago

Which type of volcano has more predictable eruptions?

Physics

2 answers:

Ludmilka [50]3 years ago

6 0

Shield volcanos have the most predictable eruptions.

ludmilkaskok [199]3 years ago

6 0

Stratovolcanoes are more predictable, often by a series of small tremors and earthquakes.

You might be interested in

Even if all stars were the same distance from Earth, their absolute magnitude and

k0ka [10]

Answer: True

hope this helps!

4 0

2 years ago

3.60×10^23 nitrogen molecules collide with a 16.0 cm^2 wall each second. Assume that the molecules all travel with a speed of 45

Oksi-84 [34.3K]

Answer:

The pressure on the wall is 9416.25 N/m²

Explanation:

Please see the attachments below

8 0

3 years ago

A gymnast is in a tucked position to complete her somersaults. While tucked her moment of inertia about an axis through the cent

torisob [31]

Answer:

$\omega_s=12.8886\ rad.s^{-1}$

Explanation:

Given that:

moment of inertia of tucked body, $I_t=16\ kg.m^2$

rotational speed of the body, $N_t=2.5\ rev.s^{-1}$

i.e. $\omega_t=2\pi\times 2.5=15.708\ rad.s^{-1}$

moment of inertia of the straightened body, $I_s=19.5\ kg.m^2$

<u>Now using the law of conservation of angular momentum:</u>

angular momentum of tucked body=angular momentum of straight body

$I_t.\omega_t=I_s.\omega_s$

$16\times 15.708=19.5\times \omega_s$

$\omega_s=12.8886\ rad.s^{-1}$

8 0

3 years ago

The escape speed from a very small asteroid is only 24 m/s. If you throw a rock away from the asteroid at a speed of 30 m/s, wha

svp [43]

Given Information:

Initial speed of rock = vi = 30 m/s

escape speed of the asteroid = ve = 24 m/s

Required Information:

final speed of rock = vf = ?

Answer:

vf = 18 m/s

Explanation:

As we know from the conservation of energy

KEf + Uf = KEi + Ui

Where KE is the kinetic energy and U is the potential energy

0 + 0 = ½mve² - GMm/R

When escape speed is used, KEf is zero due to vf being zero. Uf is zero because the object is very far away from mass M, therefore, the equation becomes

GMm/R = ½mve²

m cancels out

GM/R = ½ve²

GM/R = ½(24)²

GM/R = 288

KEf + Uf = KEi + Ui

½mvi² + 0 = ½vf² - GMm/R

m cancels out

½vi² = ½vf² - GM/R

Substitute the values

½(30)² = ½vf² - (288)

½vf² = 450 - 288

vf² = 2(162)

vf = √324

vf = 18 m/s

Therefore, the final speed of the rock is 18 m/s

8 0

3 years ago

Read 2 more answers

Help ;-;

nasty-shy [4]

Answer:

all qn 1,2,3 have same answer ,. Yes,. hope it helps

3 0

3 years ago