A student practicing for track ran 800 meter in 110 seconds. what was her speed?

What kind of graph uses points on a grid connected by line segments to represent data and is usually used to show change over ti

Brrunno [24]

Line Graph

Hope this is what you are looking for!

5 0

3 years ago

If two point masses 1kg & 4kg are seperated by a distance of 2m. Magnitude of gravitational force exerted by 1kg on 4kg is ?

Aliun [14]

Answer:

F = G Newtons

Explanation:

Given:

Mass of 1st body = $1\:kg$
Mass of 2nd body = $4\:kg$

To Find:

Magnitude of gravitational force

Solution:

Here, we have a formula

$F=\dfrac{G.M_{1}.M_{2}}{r^{2}}$

<u>Substituting the values</u>

$\implies\:\:F = \dfrac{G(1)(4)}{2^{2}}$

$\implies\:\:F = \dfrac{4G}{4}$

$\implies\:\:F = \dfrac{\cancel{4}G}{\cancel{4}}$

$\implies\:\:\red{F = G}$

Know More:

The applied formula for the above solution is

${\boxed{F_{G}=\dfrac{G.M_{1}.M_{2}}{r^{2}}}}$

where,

F $_{G}$ = Gravitational force
G = Gravitational constant
M $_{1}$ = mass of 1st body
M $_{2}$ = mass of 2nd body
r = distance between two bodies

6 0

3 years ago

If there was a small sphere freely suspended in plane poiseuille flow, how would you go about using linearity to prove that the

Blizzard [7]

Answer Explanation :

Poiseuille equation: this equation is used for non ideal flow this is used for the calculation of pressure in laminar flow it is physical law we know that fluid in laminar flow, flows across the pipe whose diameter is larger than the length of pipe

in mathematical form the equation can be expressed as

Q = $\frac{(P_2-P_1) r^{4}\times \pi}{8\times\eta \times l }$

where η is the cofficient of viscosity

now if we assume a small sphere of radius a is suspended freely in the plane of the laminar flow then for assuring that the sphere does not migrate with the flow we have to calculate the rate of flow of the liquid

8 0

3 years ago

All of the alkali metals, Group 1, have one valence electron. Which of these would represent the oxidation number of the alkali

melamori03 [73]

The elements found in the Group 1, or the Alkali Metal Group, have electronic configurations that end in $s^{1}$ .This means that they have 1 electron readily available to release in order to achieve a stable state.

When these atoms release the valence electron, they will achieve a stable state. For example, Lithium's stable state will be $Li^{+}$ and Sodium will be $Na^{+}$ .

The oxidation state will then be +1.

The answer is C.

8 0

3 years ago

Read 2 more answers

A piece of glass has mass of 1 kg and a density of 800 kgm-³ negative cubed calculate its volume

DaniilM [7]

Explanation:

we know that

v = m/d

or; v=1kg/800kgm^3

or; v=0. 00125m

7 0

2 years ago