Answer:
Light years or the speed of light
Explanation:
Answer:
speed of light
Explanation:
If the work required to speed up a car from 11 km/h to 21 km/h is 6.0×103 J , what would be the work required to increase the car’s speed from 21 km/h to 33 km/h
Explanation:
We need convert the velocities first to m/s and we get the following:
v2 = 21 km/hr = 5.8 m/s
v1 = 11 km/hr = 3.1 m/s
We need to find the mass of the car also for later use do using the work-energy theorem:
[tex]delta \: w = \frac{1}{2} m(v \frac{2}{2} - v\frac{2}{1} )[/tex]
6.0x10^3 J = (0.5) m [(5.8)^2 - (3.1)^2]
or
m = 499.4 kg
Now we determine work needed delta W to change its velocity from 21 km/hr to 33 km/hr
v2 = 33 km/hr = 9.2 m/s
v1 = 21 km/hr = 5.8 m/s
delta W = (0.5)(499.4)[(9.2)^2 - (5.8)^2]
= 1.3 x 10^4 J
WHAT IS THE ANSWER TO DURING THE MOTION OF A WHEEL ALONG THE ROAD , VELOCTY HAS HOW MANY COMPONENTS CHOOSE ( 1,2,3) OR (ANY NUMBER)
Explanation:
The car's rate of change of position is decreasing. The car is moving but its rate of position increase is coming down. The car will eventually come to a brief stop and begin traveling backward.
Based on information from the graph above, what can be concluded about the relationship between the temperature of a solvent and the solubility of a solute?
A. No conclusions can be drawn.
B. For most solutes, as temperature increases, the solubility is unaffected.
C. For most solutes, as temperature increases, the solubility increases.
D. For most solutes, as temperature increases, the solubility decreases.
which types of change observe the law of conservation of mass? single answer
A. only changes of state
B. only physical changes
C. only chemical changes
D. physical changes and chemical changes
Answer:
d
Explanation:
d just because it is and it's talking about mass and physical match's up with mass
What is one way to store a lot of potential energy in the field between two charged objects?
Answer:
Explanation:
Two charged particles will vary in energy as we alter the distance between them.
A set of data is collected from a simple circuit with a
20 Ω resistor and is represented in the table.
The current at 5.0 V is
A.
The current at 15 V is
A.
Answer:
A. Recall Ohm's Law: V = IR
If V = 45 volts, and I = 5 amps, the R = V/I = 45V/5A = 9Ω
B. We know the potential difference and the resistance, both of which have good units. All we have to do is plug the known values into the equation and solve for the current:
I=15V9Ω
Thus, the electric current is: 1.67A
Answer:
.25
.75
Explanation:
edge
Sound travels at different speeds in different mediums. Rank the three mediums sound can travel to from fastest to slowest.
Answer:
Sound travels at different speeds depending on what it is traveling through. Of the three mediums (gas, liquid, and solid) sound waves travel the slowest through gases, faster through liquids, and fastest through solids.
Sound waves fall into three categories: longitudinal waves, mechanical waves, and pressure waves.
when the net force of opposite forces is zero , the forces are
A. not even
B. unequal
C. unbalanced
D. balanced
A car with a mass of 2000 kg accelerates at 6 m/s'at a green light. What is the car's force?
Answer:
Car's force is 12000 N.
Explanation:
→ Force = Mass × Acceleration
→ Force = 2000 kg × 6 m/s²
→ Force = 12000 NThe filament is broken in a light bulb. The circuit is now
a. open circuited
b. closed circuited
c. neither closed nor open
Answer:
It is A. Open Circuit.
Explanation:
Filament heats up and produces the light. If the filament breaks, the current does not flow and the circuit will be open. The ammeter will reach zero when this happens.
A +6.33 uC charge q1 is attracted by a force of 0.115 N to a second charge q2 that is 1.44 m away. What is the value of q2?
Answer:-4.1858
Explanation: I hate Acellus
If A +6.33 μC charge q₁ is attracted by a force of 0.115 N to a second charge q2 that is 1.44 m away. then the value of q₂ = 4.23 μC.
What is coulomb's law ?Electrostatic force is a force of attraction or repulsion between two unlike or like charges respectively. when like charges come closer to each other, they gets repel by one another and it gets attracted for unlike charges. Force of attraction or repulsion between two point charges are given by coulomb's law. The force of attraction between two charges are given by coulomb's law.
the law states that the force of attraction or repulsion between two point charges is directly proportional to product of magnitude of both the charge and inversely proportional to square of the distance between them.
i.e. F ∝ q₁q₂
F ∝ 1/r²
F ∝ q₁q₂/r²
F = kq₁q₂/r²
where k is proportionality constant k = 1/4π∈₀ = 8.9×10⁹
In this problem,
Given,
q₁ = 6.33×10⁻⁶ C
F = 0.115N
r = 1.44m
q₂ = ?
putting this values in the equation,
0.115 = 8.9×10⁹×6.33×10⁻⁶ ×q₂÷1.44²
q₂ = 4.23 μC.
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The following three resistors (Ohms) are in parallel with one voltage source. What is the voltage running through the C resistor?
Battery 8
Resistor A 7
Resistor B 6
Resistor C 6
Answer:
If the resistors are connected in parallel and the battery voltage is 8V, then voltage across resistor C is 8V.
I shall give you the ruler.change to passive
Answer:
The ruler shall be given to you.
I tried but that's basically how it should look.
contrast your Reflection from the back of a shiny spoon and from a plane mirror.
6. An excited dog runs full-speed toward his owner who has just returned home from
school. If he runs north along their driveway for a distance of 45 m and takes 5.2 s to get
there, what is his average velocity?
Please answer in comments with work !!:)
Answer:
v = 8.65 m/s
Explanation:
Given that,
Distance covered by the doge, d = 45 m
Time taken, t = 5.2 s
We need to find its average speed. The total distance covered divided by the total time taken is called the average speed of an object. So,
[tex]v=\dfrac{45\ m}{5.2\ s}\\\\=8.65\ m/s[/tex]
So, the average speed is 8.65 m/s.
THIS IS MY EXAM HURRY PLS
Which is a way that the elements are grouped on the periodic table? (2 points) a Elements in the same row have the same number of protons. b Elements with similar bonding properties are in the same column. c Elements in the same column have the same number of neutrons. d Elements with similar mass are placed in the same column.
Answer:
elements in the same column have the same number of neutrons. elements with similar mass are placed in the same column.
If two 100 ohms resistors are placed in series, their total resistance is what?
1) 10 000 ohms
2) 200 ohms
3) 100 ohms
4) 50 ohms
Answer:
add the Resistance
2(100)= 200
2) 200 ohms
If two 100 ohms resistors are placed in series, their total resistance will be 200 ohms
What is series combination ?When two or more resistors are connected end to end consecutively , they are said to be connected in series combination .Total resistance in series combination is calculated as the algebraic sum of individual resistances
General formula = R (equivalent ) = R1 + R2 + R3 + .......
let R1 = 100 ohms
R2 = 100 ohms
R(equivalent resistance in series combination )= R1 + R2
R = 100 + 100
R = 200 ohms
If two 100 ohms resistors are placed in series, their total resistance will be b) 200 ohms
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*20 points* will give brainliest!
Comparing Cells
i need to know a few things about the primary function and organelles present in..
protists cells
fungus cells
plant cells
and, animal cells
Answer:
Protists cells: ribosomes, mitochondria, and chloroplasts.
Fungus cells: cell walls, nuclei, mitochondria, endoplasmic reticulum, Golgi apparatus, endosomal vacuoles, various types of vesicles, and peroxisomes.
Plant cells: chloroplast, cell wall, plastids, and a large central vacuole.
Animal cells: nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, vesicles, and vacuoles.
Answer:
1) Ribosomes: Are the organelles responsible for synthesizing all the proteins the protist will need
Mitochondria: which are the organelles responsible for turning food into energy the cell can use
Chloroplasts, which are the organelles that are able to capture sunlight
____________________________________________________________
2) Mitochondria: Developmental and morphogenetic switches such as hyphal differentiation and biofilm formation, adaptation to stress, cell wall biosynthesis and structure.
Endoplasmic reticulum: harbors several of the enzymes involved in the biosynthesis of ergosterol, an essential membrane component
Golgi apparatus: performs crucial functions in the sorting and processing of proteins destined for secretion
____________________________________________________________
3) Chloroplast: Allow plants to capture the energy of the Sun in energy-rich molecules and carries out the process of Photosynthesis.
Cell wall: The cell wall surrounds the plasma membrane of plant cells, providing structure and protects the plant from mechanical and osmotic stress.
Plastids: responsible for manufacturing and storing of food. These often contain pigments that are used in photosynthesis
Vacuole: Simply helps maintain water balance, usually large and takes up most of the space in a plant cell.
____________________________________________________________
4) Nucleus: Controls and monitors the activities of the cell and carries the genes, structures that contain the hereditary information for their offspring.
Mitochondria: Generates most of the chemical energy needed to power the cell's biochemical reactions.
Endoplasmic reticulum: Serves multiple functions, being important particularly in the synthesis, folding, modification, and transport of proteins.
Golgi apparatus: Helps process and package proteins and lipid molecules, especially proteins destined to be exported from the cell.
Vesicle: Transport vesicles help move materials, such as proteins and other molecules, from one part of a cell to another
Vacuole: Are generally small and help dispose waste products in the cell.
Ribosomes: Link together specific amino acids to form polypeptides and they export these to the cytoplasm.
Which of ONE of the following four elements has the most metallic properties?
The atomic numbers of the elements are listed below.
12
14
16
17
Answer:
12 (Magnesium- Mg)
Explanation:
Looking at the four numbers, we have:
Magnesium, Silicon, Sulfur, and Chlorine.
We can eliminate two of the answers immediately just by looking at the periodic table.
Sulfur and Chlorine are on the nonmetal side of the periodic table. So that's definitely not it. That leaves Magnesium and Silicon.
Silicon is a Metalloid. Magnesium is an Alkaline earth Metal.
Metaloids are elements that have a mix of both metal and nonmetal properties (luster, how it feels, etc.). Since it's a MIX and Magnesium is just straight METAL-
We can say Magnesium has the most metallic properties.
hope this helps!!
HELP PLS ILL GIVE U BRAINLIST
Which of the following is NOT a term used to describe the conductivity of materials ?
A: Semi Insulator
B: Insulator
C: semiconductor
D: conductor
B. insulator
hope this was helpful
Answer:
B. Insulator
Explanation:
Cant conduct heat or electricity?
11. 2 cm of rain falls in 10 minutes. The rain fall
steady at the rate of 20 m/s. The average
pressure on ground if rain drops comes to rest
after impact is
(a) 0.067 N/m^2
(b) 0.67 N/m^2
(c) 6.7 N/m^2
(d) 67 N/m^2
Answer:
WP LA æ WI all all Eduardo whatever Cincinnati quips I was just wondering if you want to be a good day
What are three other types of new batteries that are being created today? (PLEASE DO NOT GIVE ME ANY LINK, JUST TYPE YOU ANSWER)
Answer:
Duracell
Amazon Basics 2 Pack CR1616 3 Volt Lithium Coin Cell Battery.
LiCB 20 Pack LR44 AG13 357 303 SR44 Battery 1.5V Button Coin Cell Batteries.
Explanation:
Hope this helps and have a nice day!
PLEASE HELP!! NO LINKS OR RANDOM WORDS!! If you were looking at the Moon from space (so that you could see all sides of it), how much of it would be lit by the sun at any given time?
1) All of it
2) Half of it
3) It varies depending on the Moon's phase.
4) It varies depending on the time of the year.
Answer:
3) It varies depending on the Moon's phase.Explanation:
What is the rule you would write describing how light reflects off a mirror?
Answer: The angle of incidence equals the ray of reflection. So this law states that any ray of light that strikes an object will reflect off the object such that the striking or incident angle is identical to the reflecting angle (as measured from the normal).
Explanation:
A 1.5 kg object is hanging from a spring with a spring constant of 15 N/m on Earth. What is the period of its up-and-down motion?
1.) 0.10 s
2.) 0.31 s
3.) 2.0 s
4.) 2.5 s
Answer: 3) 2.0
Explanation: I guessed and got it right on my assignment :)
What is the length of a string with a mass of 2.5 kg, with a
tension of 20 N, if the speed of wave on the string is 2 m/s?
Answer:
.5 m
Explanation:
It is correct lol.
how is grounded theiry different from other qualitative research methods?
Answer:
(u mean theory* i think)
Grounded theory differs from either qualitative content analysis or thematic analysis because it has its own distinctive set of procedures, including theoretical sampling and open coding. In contrast, the procedures in the other two are not specified at the same level of detail.
thenks and mark me brainliestt :))
I WILL MARK YOU THE BRAINLIEST NO LINKS
The weight of the fluid that an object displaces is equal to the buoyant force acting on the object is
spring force
Archimedes Principle
buoyant force
Hooke's Law
Answer:
Archimedes' Principle
Explanation:
Its because Archimedes' Principle states "that the buoyant force on an object is equal to the weight of the fluid displaced by the object.... If you want to know the buoyant force on an object, you only need to determine the weight of the fluid displaced by the object."
Two 1.2 kΩ resistors are in series and this series combination is in parallel with a 3.3 kΩ resistor. The total resistance is
Explanation:
you have to divide by 2 and times by 2
The speed of a wave with a frequency of 2 Hz (2/s), an amplitude of 3 m, and a wavelength of 10 m is
options:
0.2 m/s.
12 m/s.
5 m/s.
20 m/s.
Answer:
5 m/s
Explanation:
your welcome
The speed of a wave equals to Wavelength and Frequency. The SI unit of speed of wave is m/s. Thus, option D is correct.
What is speed of wave?The speed of wave is distance travelled by the wave in given time. It is related to both wavelength and frequency. Wavelength is measured in meters and frequency in hertz.
From the givens:
Frequency(f) = 2 Hz.
Wavelength(λ) = 10m.
Amplitude = 3m ( Amplitude does not affect the speed of wave)
Speed (v) = λ × f
= 10 × 2
= 20 m/s.
Therefore, the speed of the wave is 20 m/s. Hence, Option D is correct.
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