All categories

3 years ago

ALWAYS use significant figure rules. Remember that these rules apply to all numbers that are measurements.

Physics

2 answers:

Reptile [31]3 years ago

3 0

0 because he did not change his position where he was in the beginning

olya-2409 [2.1K]3 years ago

3 0

Answer:

Explanation:

You might be interested in

If a child needs interventional service, he or she might have _____.

weqwewe [10]

Answer

Correct Answer is B,D, F and G

Explanation:

If a kid has any type of delays in his physical or mental growth then he need intervention service.

For example if a kid is not able to walk after 18 month, if a kid is not able to speak properly after 3 years, if a kid of 5 years age has lack of response to typical efforts to engage him in an interaction then these kids need intervention service.

8 0

3 years ago

Name the regions of a electromagnetic spectrum from the shortest wavelength to the longest wavelength

kaheart [24]

Answer:

From shortest wavelength to longest wavelength:

Gamma Rays

X-Rays

Ultraviolet

Visible Light

Infrared waves

Microwaves

Radio Waves

Explanation:

5 0

3 years ago

How can compounds get broken down into their base<br> elements or changed into another substance?

Gnoma [55]

Answer:

Compounds can be broken apart in chemical reactions called decomposition reactions. For example, water can be broken down into the diatomic elements hydrogen gas and oxygen gas in a chemical reaction called electrolysis. ... Some compounds undergo thermal decomposition when they are heated.M

4 0

3 years ago

A cannon fires a cannonball of mass 16.0 kg by applying a force of 2750 N along the 1.25 m length of the barrel. (a) How much wo

Zarrin [17]

To develop this problem it is necessary to apply the concepts related to Work and energy conservation.

By definition we know that the work done by a particle is subject to the force and distance traveled. That is to say,

$W = F*d$

Where,

F= Force

d = Distance

On the other hand we know that the potential energy of a body is given based on height and weight, that is

$PE = -mgh$

The total work done would be given by the conservation and sum of these energies, that is to say

$W_{net} = W+PE$

PART A) Applying the work formula,

$W = F*d\\W = 2750*1.25\\W = 3437.5J$

PART B) Applying the height equation and considering that there is an angle in the distance of 25 degrees and the component we are interested in is the vertical, then

$PE = -mgh*sin25$

$PE = -16*9.81*1.15sin25$

$PE = -82.9J$

The net work would then be given by

$W_{net} = W+PE$

$W_{net} = 3437.5J-82.9J$

$W_{net} = 3354.6J$

Therefore the net work done by these 2 forces on the cannonball while it is in the cannon barrel is 3355J

3 0

4 years ago

Listed in the Item Bank are some key terms and expressions associated with the categories seen in the Venn Diagram. To find out

Vinvika [58]

Compounds
Chemically combined
Fixed proportions
Components change properties

Both
Made of elements
2 or more component

Mixtures
Physically combined
Variable proportions
Components retain properties

Hope this helps!

4 0

4 years ago