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3 years ago

Which of the following elements most likely has the highest boiling point?

Physics

2 answers:

JulsSmile [24]3 years ago

4 0

Answer:

Explanationalluminiim

Anettt [7]3 years ago

3 0

a) aluminium

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g A mouse is sitting on top of the block in the previous question. As a reminder, the block is sliding down a ramp at a constant

Feliz [49]

Answer:

The number of forces that are acting on the mouse will be three (Normal force, friction force and force of the mouse´s weight)

Explanation:

The number of forces that are acting on the mouse will be three. the first is the normal force acting on the midpoint of the mouse, this force is directed upward, the other is the force between the block and the bottom of the mouse, which is the friction force, and the third is the force of the mouse´s weight, which is defined as the multiplication of mass by gravity.

4 0

3 years ago

The Sun is approximately 1,400 million kilometers from the planet Saturn, and light from the Sun travels to Saturn at the rate o

irinina [24]

Answer:

Light takes 77 minutes to travel from the Sun to Saturn.

Explanation:

The equation for the average velocity can be used to estimate the time that light will take to travel from the Sun to Saturn. The average velocity is defined as:

$v = \frac{d}{t}$ (1)

Where v is the velocity, d is the covered distance and t is the time.

Equation 1 can be rewritten for t to get:

$t = \frac{d}{v}$

It is necessary to express the speed of light in terms of minutes:

$300000 \frac{Km}{s} . \frac{60 s}{1 min}$ ⇒ $1.8x10^{7}$ <em>Km/min </em>

$t = \frac{1.4x10^{9} Km}{1.8x10^{7} Km/min}$

$t = 77 min$

It is known that light takes 8,3 minutes to go from the Sun to the Earth, where the distance between each other is 150.000.000 Kilometers.

5 0

4 years ago

The North American and European plates of the

faust18 [17]

Distance = speed/time

width/distance given is 2.9*10^3 miles
1 mile=1.6*10^6mm
total distance now is 2.9*1.6*10^9
speed is 25 mm/yr
plug the values,
therefore the rift takes approximately 185600000 years for a width <span>of 2.9 x 10^3 mi.</span>

5 0

3 years ago

Suppose a 96.10 kg hiker has ascended to a height of 1841 m above sea level in the process of climbing Mt. Washington. By what p

lbvjy [14]

Answer:

0.029%

Explanation:

Weight on the surface is given by,

$F_W = mg = (96.1Kg)(9.8m/s^2)=941.78N$