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3 years ago

How do you read a map

2 answers:

7 0

First what you are going to want to do Is look at the legend (key) and find your location. then you will want to travel the correct distance<span />

nordsb [41]3 years ago

6 0

It depends on the map but mostly just read the key and try to understand what you are locating.

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Temka [501]

Answer: a

Explanation:

are u a male or female

7 0

3 years ago

Read 2 more answers

A hockey puck moving at 28 m/s is caught by an 80.00 kg man who was at rest the man and puck moved together after the collision.

hodyreva [135]

Answer: The final velocity of both man and hokey puck will be 0.056 m/s.

Explanation: We are given 2 objects and are undergoing collision. The final velocity of both the objects is same. To calculate the final velocity, we will use the principle of conservation of momentum.

This principle states that when the objects that are colliding makes up a system, then the total momentum will remain constant if no external force is applied on it.

Sum of Initial momentum of two objects = Sum of Final momentum of the two objects

Mathematically,

$m_1u_1+m_2u_2=m_1v_1+m_2v_2$ ...(1)

where,

$m_1,u_1\text{ and }v_1$ are the mass, initial velocity and final velocity of the first object.

$m_2,u_2\text{ and }v_2$ are the mass, initial velocity and final velocity of the second object.

Here, man and hockey puck are moving together after the collision, so their final velocities will be same.

$m_1=80.00kg\\m_2=0.16kg\\u_1=0m/s\\u_2=28m/s\\v_1=v_2=V=?m/s$

Putting values in equation 1, we get:

$80(0)+0.16(28)=(0.80+0.16)V$

$V=0.056m/s$

The final velocity of man and hockey puck is 0.056 m/s.

6 0

3 years ago

Read 2 more answers

Describe the formation of an aqueous KI solution when KI dissolves in water

Sidana [21]

Potassium Iodide or KI is an ionic compound and dissolves to water since the two are polar substances. Like dissolves like. As KI is dissolved into water, the KI molecules dissociates into ions, the K+ and I- ions. Water molecules can stabilize these ions. The K+ ions attracts the negative side of H2O molecules which is the oxygen side while the I- ions attracts the positive side of H2O molecules or the hydrogen side.

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3 years ago

How many elements are there

yawa3891 [41]

There are 118 known elements

4 0

4 years ago

Concentration required to begin precipitate pbcl2 for pbcl2 ksp=1. 17×10−5

Ne4ueva [31]

The concentration required to begin to precipitate PbCl2 for PbCl2 is 0.0216 M.

<h3>What is molarity?</h3>

Molarity is the measure of the concentration of any solute in per unit volume of the solution.

The reaction is $\rm Pb^2^+(aq) + 2Cl^-(aq) \rightarrow PbCl_2(s).$

The molarity of lead is 0.025 M

The ksp is given 17×10⁻⁵

Now, calculating the concentration

$[Pb^2^+] = 0.025 M.\\Ksp = 1.17 \times 10^-^5\\Ksp = [Pb^2^+] \times [Cl^-]^2\\[Cl^-] = \dfrac{\sqrt{ Ksp}}{[Pb^2^+]} \\\\[Cl^-] = \dfrac{\sqrt{ 0.0000117}}{0.025} \\[Cl^-] = 2.16 \times 10^-^2M.$

Thus, the concentration required to begin to precipitate PbCl2 for PbCl2 is 0.0216 M.

Learn more about molarity

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5 0

2 years ago