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2 years ago

The ________ explains how our solar system probably formed from a giant cloud of gases and dispersed solid particles.

1 answer:

4 0

The nebular hypothesis explains how our solar system probably formed from a giant cloud of gases and dispersed solid particles.

<h3>What is Nebular hypothesis?</h3>

The most widely accepted theory in cosmogony to explain how the solar system formed and evolved is the nebular hypothesis. It implies that gas and dust orbiting the sun are what created the solar system.

Following are the steps in nebular theory:

As part of the cloud of gas and dust condenses into a core and becomes a protostar, the nebula changes into a solar nebula.

The material condensing might have been brought on by a nearby supernova shockwave.

An accretion disk is formed as the protostar's surrounding material disintegrates.

<h3>How did the solar system form, according to the nebular hypothesis?</h3>

The nebular hypothesis states that enormous clouds of hydrogen and helium imploded. The cloud's center heated up significantly after collapsing. The system then started to rotate as it became hotter and more compressed. The formation of the solar system started at this point.

Learn more about solar system here:

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A block slides down a frictionless plane having an inclination of 15.0°. The block starts from rest at the top, and the length o

nalin [4]

Answer: check the pic

Explanation:

8 0

3 years ago

For a certain ideal Carnot engine, the hot reservoir is 35°C higher than the cold reservoir. If this engine is to have an effici

lord [1]

Answer:

Temperature of the hot reservoir is 1540K

Explanation:

$E= 1- \frac{T_{c}}[tex]{T_h}=308+{T_c}\\Efficiency of a carnot engine is given by the aboveTc=temperature of the cold reservoirTh= temperature of the hot reservoirK=273+ 35 (convert 35°C to kelvin)K=308k{T_h}={T_c}+308-----------------------(equation 1)20%=1-{T_c}/{T_h}$

0.2=({T_c}+308-{T_c})/{T_c}+308

.2({T_c}+61.6=308

0.2{T_c}=246.4

{T_c}=1232

recall from equation 1

{T_h}=308+1232

{T_h}=1540K

5 0

3 years ago

To meet a U.S. Postal Service requirement, employees' footwear must have a coefficient of static friction of 0.5 or more on a sp

Vlada [557]

Answer:

the minimum time interval is 0.77 seconds

Explanation:

given data

coefficient of static friction = 0.5

coefficient of static friction shoes= 0.825

travel s = 2.40 m

to find out

what is the minimum time interval

solution

we know newton 2nd law

force = mass × acceleration

and

force acting on person due to friction

force = coefficient of static friction shoes × mg

so we can say

coefficient of static friction shoes × mg = ma

a = coefficient of static friction shoes × g

and we know g is 9.8 m/s²

distance formula by kinematic relation

distance = ut + 0.5 × at²

here put a value and u is zero because initial speed

2.40 = 0 + 0.5 × coefficient of static friction shoes × g× t²

2.40 = 0.5 × 0.825 × 9.8 × t²

t = 0.77 s

the minimum time interval is 0.77 seconds

5 0

4 years ago

Two carts on an air track have the same mass and speed and are traveling toward each other. If they collide and stick together,

lora16 [44]

Answer:

$p = 0$ , $K_{A} = m\cdot v^{2}$ (before collision), $K_{B} = 0$ (after collision).

Explanation:

The total momentum is obtained using the Principle of Momentum Conservation:

$m\cdot v_{A} - m \cdot v_{A} = 2\cdot v_{B}$

It is trivial to find that final speed and total momentum of the system are zero:

$p = 0$

The total kinetic energy of the system becomes zero due to the inellastic collision and the same masses and speeds. Total kinetic energies before and after collision are, respectively:

$K_{A} = m\cdot v^{2}$

$K_{B} = 0$

7 0

3 years ago

How does the use of renewable sources of energy help to solve the problem of energy

trasher [3.6K]

Answer:

The use of renewable sources of energy help to solve the problem of energy crisis is discussed below in details.

Explanation:

Environmental and economic advantages of adopting renewable energy incorporate: Creating energy that originates no greenhouse gas discharges from fossil fuels and decreases some kinds of air pollution. Increasing energy stocks and decreasing dependency on shipped fuels.

Here are 5 actionable suggestions you can follow to make a decent utilization of renewable energy on your bases:

Embrace Solar-Powered Technologies.
Crowdfund Clean Energy Projects.
Establish the Society of Concerned Scientists.

8 0

3 years ago