I went for a walk the other day. I went four blocks east, then seven blocks south, then one block west and finally
eight blocks north
a.What distance did I travel?
b. What's my displacement?

Answers

Answer 1

Answer:

a) distance is 4+7+1+8=20 blocks

b) displacement is 10 blocks

Explanation:

find displacement: x and y

x axis displacement = 4-1 = 3 blocks

y axis displacement = -7+8= 1 block

displacement = the square root of 3^2 + 1^2

= 9+1 = 10 blocks.

You can find the angle of displacement with respect to the initial position using trig identities, if you wish.


Related Questions

Stoichmetric calculations must not be based on the limiting reagent
true or false

Answers

Answer:

Ture

Explanation:

Ture

True

True

True

1. Explain where they bury remains at the Forensic Osteological Research Center and why

Answers

Answer:

In the middle of the forest.

Explanation:

They have to bury the remains in the middle of the forest at the Forensic Osteological Research Center in order to study the decomposition of the dead person. By studying the decomposition of dead person we can get a lot of information which can be used in the study of criminal cases and solving of crimes. The middle place in the forest is a perfect place to bury the remains due to presence of huge amount of microbes as well as insect that helps in the decomposition.

The number of protons is equal to
a the number of neutrons.
b the atomic mass.
c the number of electrons.
d the atomic number.

Answers

Answer:

c the number of electrons

Temperature is a measurement of :
1) total energy in a system
2) the average kinetic energy of a system
3) the average potential energy of a system
4) the ability to do work

Answers

Answer:

Temperature is a measure of the average kinetic energy of the particles in an object. When temperature increases, the motion of these particles also increases. (That should give you the answer if you read closely first sentence)

Can someone tell me if these are right? I am supposed to be decoding this for my escape room but it seems to be wrong.

Answers

Answer:

Q1 is A.

Q2 is right

Q3 is D.....I dont

really know about this one

Q4 is right

Consider the following reaction occurring in a 1.0 L container:
H2 (g) + I2 (g) → 2 HI (g)
State 2 requirements for a successful collision between H2 and I2.

Answers

Answer:

jjjjajwhejwhswjiwiwvssvwvow9qiwgdvdbslw

A sample containing 0.75 moles of CO2 would contain how many atoms?

Answers

Answer:4.5 ×10^22)

Explanation:

no. of particles =no. of mole×avogadro's number of particles no. of particles =0.75×6.02×10^23 no. of particles =4.5 ×10^22

PLEASE HELP I WILL MARK YOU BRAINLIEST !!If you react 4.25 moles of FeCl2, how many moles of Cl2 did you also react?
PLEASE IM BEGGING FOR HELPPPPP

Answers

Answer:

2 FeCl2 + Cl2 -> 2 FeCl3

According to numbers in reaction

Amount of Cl2 is half of FeCl2

Explanation:

3Ba(C2H3O2)2 + 2K3PO4 ⟶ Ba3(PO4)2 + 6KC2H3O2

If 4.36 mol of potassium phosphate react, how many grams of barium phosphate are produced?

Answers

Hello Mistyann!

First you need to know amount of barium phosphate is

Half of potassium phosphate, also 2.18 mol.

Molar mass of Barium phosphate is 3·137.2 + 2·(30.97+4·16) g/mol

You can calculate it yourself dear.

Now mass is amount of substance · molar mass.

It has been an honour to teach you, dear,

God bless!

.
Characteristics of a Group of Elements
Do not conduct electricity
• Mostly gas, but brittle when solid
Has 7 valence electrons
.
Which of these elements is in this groun?

Answers

Answer:

Gas

Explanation:

I dunno but a lucky guess i guess

If magnesium and nickel were used as electrodes to construct an electrochemical cell like the one shown at right, which metal would form the anode and which the cathode?

anode:

cathode:​

Answers

Answer:

anode: magnesium

cathode: nickel

Explanation:

edg. 2021

Newtons law of motion​

Answers

Newton's laws of motion are three laws that describe the relationship between the motion of an object and the forces acting on it. The first law states that an object either remains at rest or continues to move at a constant velocity, unless it is acted upon by an external force. The second law explains how the velocity of an object changes when it is subjected to an external force. The law defines a force to be equal to change in momentum (mass times velocity) per change in time. The third law states that for every action (force) in nature there is an equal and opposite reaction


Explain how a long-term environmental change can lead
to the development of a new species.( its a paragraph

Answers

Answer:

Humans are modifying the world in many ways, and not all of them for the better. The changes we cause are often severe challenges to animals, plants and microbes in nature, from the introduction of pathogens or exotic invasive species to adding toxic substance or excessive nutrients, or causing climatic change. Often several changes occur at once. Nelson Hairston's lab focuses on freshwater environments, especially lakes and ponds, where some of the species present respond to environmental change with decreases in their numbers, even to the point of extinction, while others may benefit to excess, becoming so dominant that they present problems, as in the case of harmful algal blooms stimulated by nutrient enrichment or climate warming. Hairston's lab studies how individual species, food webs, and whole ecosystems are altered when the environment changes.

One way that some freshwater organisms respond to environmental change is to evolve rapidly. A marked change in the environment favors some characteristics of plants, animals and microbes over others. These character differences are often genetically based so that favored characteristics may increase in the next generation. The shorter the generation time, the faster this evolutionary change can occur. For example, tiny but abundant plankton, eaten by fish and other larger animals, can become adapted to the changed environment within a few years because their generation time is only a few days. Hairston's lab has shown that planktonic "water fleas" (Daphnia), major consumers of suspended algae in lakes, evolved to be tolerant of harmful algae within a decade of the appearance of blooms. This rapid evolution (termed "evolutionary rescue" in conservation biology) raises many intriguing questions, for all environments, not just freshwater: To what extent can we rely on species adapting rather than going extinct when their environment changes? How does the evolution of a species that plays a critical ecological role alter the interactions it has with other species, and the functioning of the entire ecosystem?

classify the following elements under metals, non metals and metalloids, boron, zinc Mercury, silicon, oxygen, nitrogen, sodium​

Answers

Answer:

Zinc mercury transition metal

Silicon boron metalloid

Oxygen nitrogen non metal

Sodium alkali metal

Explanation:

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