Convert to scientific notation:<br> 0.0035

What is the average velocity if the initial velocity of an object is 10 m/s & the final velocity is 28 m/s

Likurg_2 [28]

Answer:

$v_{1} = 19 m/s$

Explanation:

$v_{1} = \frac{(v_{2} + u)}{2}$ , where $v_1$ <em> </em>= avg. velocity, $v_2$ = final velocity, and $u$ = initial velocity.

6 0

3 years ago

A flat disk, a solid sphere, and a hollow sphere each have the same mass m and radius r. The three objects are arranged so that

Aloiza [94]

Answer:

b)

Explanation:

Rotational inertia of the sphere: $\frac{2}{5}mr^2$

Rotational inertia of hollow sphere: $\frac{2}{3}mr^2$

Rotational inertia of flat disk: $\frac{1}{2}mr^2$

The largest value is 2/3 mr², therefore, hollow sphere's inertia is largest.

7 0

3 years ago

you are the person in charge of building a nuclear power plant in florida. your first choice is to select a

sammy [17]

Answer: you are the person in charge of building a nuclear power plant in Florida. your first choice is to select a site for building the power plant.

Explanation: To find the answer, we need to know more about the nuclear power plants and the criteria to select the site for power plant.

<h3>What you mean by nuclear power plants?</h3>

Nuclear power can be defined from the nuclear fission reaction.
These power plants will heat the water to produce steam and this steam is used to spin large turbines and thus generates electricity.

<h3>How to select the site for nuclear power plant?</h3>

We have to consider the following things,
keep distance from populated area.
distance from load center.
Accessibility to site.
Water availability and fuel availability.
waste disposal.

Thus, we can conclude that, before building a nuclear power plant, our first choice should be to select a site.

Learn more about the nuclear power plants and the criteria to select the site for power plant here:

brainly.com/question/28045272

#SPJ4

8 0

2 years ago

Let’s say you pour an ounce of water from a class into a bowl. Does the water’s mass change?

ch4aika [34]

Answer:

No. If you take 5$ from your wallet and place on the shelf, does it change its value - No. So if you take the water from class(does not matter how much) and pour all of it somewhere else, it doesn't change its mass, yet it changes its shape.

5 0

3 years ago

A metal wire of resistance R is cut into five equal pieces that are then placed together side by side to form a new cable with a

Alina [70]

Answer:

R / 25

Explanation:

Let the initial length of the wire is L and its resistance is R.

Now the length is cut into 5 equal parts.

The resistance of a wire is directly proportional to the length of the wire, thus, the resistance of each portion of the wire is R/5.

Now the five pieces are connected in parallel combination, the equivalent resistance is

$\frac{1}{R_{eq}}=\frac{5}{R}+\frac{5}{R}+\frac{5}{R}+\frac{5}{R}+\frac{5}{R}$

$R_{eq}=\frac{R}{25}$

Thus, the resistance of the new cable is R / 25.

8 0

3 years ago

Convert to scientific notation: 0.0035