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3 years ago

Just need the answer

Physics

1 answer:

marin [14]3 years ago

8 0

Answer:

1. 1, 2, 4 all show some form of refraction as the bending of a light ray when passing from one media to another.

Explanation:

Number 4 is the most accurate as it also shows some light being reflected and the bending of the refracted light ray in the correct direction for going from a medium of low refractive index (air) into a higher refractive index material (crown glass)

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Which statement(s) is/are indicative of a covalent bond?

Over [174]

Do you have any answer options?

The most I can help is to tell you that a covalent bond is a type of bond that shares electrons between the bonded atoms.

4 0

3 years ago

Elements from which two groups in the periodic table would most likely combine

Katarina [22]

The answer is actually 1 & 17, maybe you meant to put 1&17 as option b

8 0

2 years ago

A 1,000 kg car has 50,000 joules of kinetic energy what is its speed??

Vaselesa [24]

Using KE=1/2mv^2

v= $\sqrt{50000/500$

so v=10

3 0

3 years ago

Read 2 more answers

You observe a hockey puck of mass 0.12 kg, traveling across the ice at speed 18.3 m/sec. The interaction of the puck and the ice

Galina-37 [17]

The stopping distance is 143.1 m

Explanation:

First of all, we have to find the acceleration of the hockey puck. This can be done by using Newton's second law of motion:

$\sum F =ma$

where

$\sum F = F_f = -0.14 N$ is the net force acting on the puck (the force of friction, negative because it acts in a direction opposite to the direction of motion)

m = 0.12 kg is the mass of the puck

a is the acceleration

Solving for a,

$a=\frac{\sum F}{m}=\frac{-0.14}{0.12}=-1.17 m/s^2$

The motion of the puck is a uniformly accelerated motion, therefore we can use the following suvat equation:

$v^2-u^2=2as$

where:

v = 0 is the final velocity (the puck comes to a stop)

u = 18.3 m/s is the initial velocity

$a=-1.17 m/s^2$ is the acceleration

s is the stopping distance

And solving for s, we find

$s=\frac{v^2-u^2}{2a}=\frac{0-(18.3)^2}{2(-1.17)}=143.1 m$

Learn more about accelerated motion:

brainly.com/question/9527152

brainly.com/question/11181826

brainly.com/question/2506873

brainly.com/question/2562700

#LearnwithBrainly

6 0

3 years ago

Which of the following best describes the domains of unmagnetized iron?

Scilla [17]

Magnetic domain is defined as a group of atoms with magnetic fields.

A piece of iron can only become a magnet when the magnetic domain aligns.

Since we have an unmagnetized piece of iron, this means that its domain is not aligned. However, this does not mean that the domain does not exist.

Based on the above, the best choice would be:
There arr domains, but domains are oriented randomly.

Hope this helps :)

8 0

3 years ago