Explain
8. How do you know that
the bicyclists in the first
panel above are moving
at a constant velocity?
Answers
Answer:
Constant velocity means that the object in motion is moving in a straight line at a constant speed. You know this as in the first panel each arrow representing each second is the same width apart, therefore you know the cyclists are moving at a constant velocity. Compare this to the second box representing changing speed. The arrows are different lengths meaning each second the cyclists are moving at a different speed and are not moving at a constant velocity.
Hope this helped.
Related Questions
When people place a metal saucepan on the heating element of a stove, heat is transferred from the element to the saucepan by: A reflection.
B convection.
C conduction.
D radiation.
Answers
An object in motion stays ___ at a constant ___ and in a straight line.
a. in motion, acceleration
b. in motion, speed
c. at rest, speed
Answers
Answer:
Answer is A
Explanation:
the answer is A
PLEASE HELLP ILL GIVE BrAINLY AND HEART
you are visiting a town that is in the middle of a large continent. How would you expect the ocean currents to effect the climate in the town?
A ) More Thunderstorms
B ) Cooler Temperatures
C ) Warmer Temperatures
D ) There is little effect on the town's climate
Answers
Answer:
D
Explanation:
Which magnets need electric current for magnetism?
a. Bar magnets b. Temporary magnets c. Permanent magnets magnets
Answers
Temporary magnets require electric current to produce magnetism and magnetic field lines B) Temporary magnets
In electromagnets, their magnetism is dependent on electricity with an iron core in the center. If we add an iron core to a solenoid, we can increase its magnetic field strength . When we connect a battery to a solenoid and wrap the sanded copper wire around a nail, a magnetic field is created. This force is generated by the magnetic field that's created when current flows through the coil.
As long as there is a direct current running through the coil, the nail will retain its magnetic properties. However, once the current stops, the magnetism of the nail is lost . Creating electromagnets can be achieved by winding wire around the iron core.
The advantages of electromagnets are :
Electromagnets can be turned on and off magnetic Fields can be increased and decreased Electromagnets can be cheap compared to permanent magnets. The same cannot be said for a permanent magnet.To learn more about Magnets
https://brainly.com/question/33942199
What is the frequency of a raido wave with a wavelength of 1.0 mm?
Answers
Answer:
3×10^6
Explanation:
frequency is the speed of light ( c) which is a constant number divided the wavelength
f = 3×10^6 / 1.0
Element Type of ion formed in a chemical reaction
Phase at room
temperature
Reactivity
W
positive
solid highly reactive
X
does not form ions
gas non-reactive
Y
negative
gas highly reactive
Z positive liquid
somewhat reactive
Using your knowledge of periodic properties and trends, how would these elements BEST be classified and why?
A.
Elements W and Z are nonmetals, Elements X and Y are metals, but Element Y is in Group 1 (alkali metal).
B.
Elements W and Z are metals, Elements X and Y are nonmetals, but Element Y is in Group 18 (noble gas).
C.
Elements W and Z are metals, Elements X and Y are nonmetals, but Element X is in Group 18 (noble gas).
D.
Elements W and Z are nonmetals, but Element W is in Group 17 (halogen). Elements X and Y are metals.
Answers
Answer:C
Explanation:
How does an increase in thermal energy affect the kinetic energy of the particles in each state of matter
Answers
Explanation:
when there is an increase in thermal energy, the kinetic energy if the matter increases as well.
What force is necessary to give a 1000 kg rocket an acceleration of 150
m/s2?
Answers
Answer:
150,000N
Explanation:
Force=Mass*Acceleration
F=ma
Mass of the rocket=1000Kg
Acceleration=150 m/s²
Force=1000*150=150,000kgm/s²=150,000N
How are speed and velocity alike?
A. They both include the total distance traveled.
B.They both require a reference point.
C. They both describe a rate of motion.
D. They both include the direction of motion.
Answers
Answer:
c
Explanation:
An arrow that is pulled back by a bow has which type of energy?
Answers
Answer:
Kinetic energy
Explanation:
Kinetic energy is the energy of motion, and the arrow is in motion.
What special component would you need to use in a thermostat so that it can respond to changes in temperature
Answers
Answer:
A thermistor is an electrical device, a thermally sensitive semiconductor resistor, whose resistance changes in response to temperature. Thermistors are made in a variety of ways including thin films (SiC).
Explanation:
hope it helps
Hey guys I need help please help me what do y’all think it is I need help And I’m struggling
Answers
Which can support life? Carbon, silicon, or both?
Answers
Answer:
both
Explanation:
Silicon
Explanation:
The chemical element of atomic number 14, a nonmetal with semiconducting properties, used in making electronic circuits. Pure silicon exists in a shiny dark gray crystalline form and as an amorphous powder
Explain the different types of energy in a working wind turbine
Answers
Answer:
A wind turbine converts the kinetic energy of the wind into mechanical power.
The wind moves the turbine and the turbine produce energy.
HELP ME PLEASEE!!!THIS IS SCIENCE
Answers
Answer:
B.
Explanation:
ASAP! AWARDING BRAINLIEST see attached photo.
Answers
Answer:d
Explanation:
Answer:
I believe the answer would be B
A dog exerts a force of 30N to move a wagon 2m in 5s. What is the power of the dog?
help me
Answers
Answer:
i do not know
Explanation:
im doing for education too
Answer:
I don't know too . want to help but I don't know how .
Explanation:
sorry bro . I want to have points eeek . :/
Which has greater density- 1 kg of water or 10kg of water?
Answers
Answer:
I believe that it will be 10kg of water
Explanation:
Because a measure of the amount of information on a storage medium (tape or disk). For magnetic tape it is the amount of information recorded per unit length of tape (bits per inch or millimeter); for a disk, a fixed number of bits per sector, sectors per track, and tracks per disk.
The density in both the case will be equal, just the difference will be in the volume they occupy.
What is density?In practice, density is the weight of a substance per unit volume. Water has a density of about 1 gram per milliliter, but this varies depending on temperature and whether or not substances are dissolved in it. Because ice is less dense than liquid water, it floats in your glass.
This allows many aquatic organisms to survive the winter. If ice were more dense than water, it would continue to freeze and sink until the entire lake was frozen.
Any amount of water has the same density. Whereas one gram of water has a volume of one milliliter, ten grams have a volume of ten milliliters.
Thus, the density will be same.
For more details regarding density, visit:
https://brainly.com/question/15164682
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Which type of electromagnetic waves should the scientists' cameras use in order to safely capture images of the sea turtles at night?
A
infra-red
B
micro
С
ultra-violet
D
visible spectrum
Answers
Answer:
D :} if not that is A that what my thing say where correct
Explanation:
Answer:
A.) infra-red
Explanation:
3. Which of the following is determined by the
force of gravity?
A weight
B momentum
C mass
D distance
Answers
Answer:
A) weight is determined by the force of gravity.
Answer:
A weight
Explanation:
The answer is weight. That's why someone would weigh more on a different planet, because the planet would have a higher/lower force of gravity.
If a wave vibrates back and forth 12 times each second, what is period of the wave?
Answers
Answer:
I think it might be 9 hz but not 100% shore though
Explanation:
Clothes in a dryer rub together and begin clinging to each other
A. Friction
B. Conduction
C. Induction
Answers
Answer:
Conduction
Explanation:
Because they touch lol
Answer:
Conduction
Explanation:
Because induction is the pass of electricity without contact and conduction is the complete opposite
What type of element is hydrogen?
Answers
Answer:
Hydrogen (H), a colourless, odourless, tasteless, flammable gaseous substance that is the simplest member of the family of chemical elements.
Explanation:
Answer:
It is a chemical element
Explanation:
physics help pleaseee
Answers
Answer:
the first questions answer is- the pressure is the same (balanced) outside and inside the window.
the second questions answer is- the atmospheric pressure increases.
Explanation:
I hope that this is what you were looking for.
Your student desk has been in the room for many hours, it is at thermal equilibrium with the room?
Which part of your desk is colder: the wood or the metal? Why?
Answers
Answer:
metal because A: In general, metals feel colder or hotter to the touch than other materials at the same temperature because they're good thermal conductors. This means they easily transfer heat to colder objects or absorb heat from warmer objects. Thermal insulators like plastic and wood don't transfer heat as easily.
Explanation:
photo attached: please help!!!
Answers
Answer:
The center of mass changes
Explanation:
The higher the center of mass the more likely things are to topple over but the lower it is the more likely to stay put when all 4 wheels are down .
You and your 3 friends are driving down the road. All the wheels go flat at the exact same time, that's not good. You have to use a 2,100 N force to push the car 4 meters to the side of the road. How much work did you do on the car?
Answers
Answer:
Workdone = 8400 Nm
Explanation:
Given the following data;
Force = 2100 N
Distance = 4 meters
To find the work done;
Workdone = force * distance
Workdone = 2100 * 4
Workdone = 8400 Nm
Therefore, the amount of work done on the car is 8400 Newton meters.
Motion maps for two objects, Y and Z, are shown.
Y →
Z
x
How many seconds does Object Z start before Object Y?
2.
03
04
5
Answers
Answer:
i can't see the map plzz send the map
Answer:
its 3
Explanation:
I just took test
What is the total energy of a system with KE = 1368 J and a PE = 5782J? Express your answer in kJ.
Answers
Answer:
7.150 KJ
Explanation:
The total energy of a system is the sum of the potential and kinetic energy in the system. According to this question, the kinetic energy (KE) = 1368 J and a potential energy (PE) = 5782J.
Total energy of the system will be PE + KE as follows;
1368J + 5782J
= 7150J
However, the question demanded that the answer be in kJ (kilojoules), which is higher than the joules.
Since 1kJ = 1000J
7150J = 7150/1000
= 7.150kJ
8. Where does ½ to ⅓ of the ocean pollution come from?
Answers
Answer:
The majority of pollutants that make their way into the ocean come from human activities along the coastlines and far inland. One of the biggest sources of pollution is nonpoint source pollution, which occurs as a result of runoff.