Answer:
The current would be multiplied by 1/4, meaning it is reduced by 3/4 of itself.
Explanation:
This is because when the resistance increases, the current decreases along with it.
Two water waves meet at the same point, one having a displacement above equilibrium of 60 cm and the other having a displacement above equilibrium of 80 cm.
Answer:
The resultant displacement is 140 cm
Explanation:
say first displacement d₁ is 60 cm
and second displacement d₂ is 80 cm
Resultant displacement = d₁ + d₂
= 60 + 80
= 140 cm
Answer:
Explanation:
To solve this problem it will be necessary to apply the interference principle.
Under this principle interference is understood as a phenomenon in which two or more waves overlap to form a resulting wave of greater, lesser or equal amplitude. In this case, if both are at the same point, the result of the total displacement will be the sum of the individual displacements, therefore
[tex]x = \sum h_i\\\\x = 60cm + 80cm\\\\x =140cm[/tex]
Therefore the resulting displacement above equilibrium is 140cm A light ray has an angle of incidence of 34º. The reflected ray will make what angle with the reflecting surface?
Answer:
Angle of incidence = Angle of Reflection
34° = Angle of Reflection
So, Angle of Reflection is equal to 34°
hope it helps!
Answer: 56 degrees
Explanation:
The angle of incidence is equal to the angle of reflection, but it is not asking us for the angle of reflection. It is asking us for the angle with the reflected SURFACE. It is 90-34= 56. Look at the pic attached if you need a labelled diagram
What is 6.9 × 107 written in standard form?
Answer:
69,000,000
Explanation:
i got it right
What is the current in a 160V circuit if the resistance is 2Ω?
Answer:
80 amperes
Explanation:
Current = Voltage/Resistance
160/2 = 80
A cooker has a resistance of 100 Ohms and a power rating of 0.5KW. What potential difference would be needed to run the
cooker
Answer:
The potential difference is 224V .
Explanation:
Given that the formula of power is P = I×V and formula of voltage is V = I×R where both I represents current.
Given that the formula of power is P = I×V and formula of voltage is V = I×R where both I represents current. Then you have to use voltage formula to make I the subject :
[tex]v = i \times r[/tex]
[tex]i = \frac{v}{r} [/tex]
So that you can substitute it into the formula of power :
[tex]p = i \times v[/tex]
[tex]p = \frac{v}{r} \times v[/tex]
[tex]p = \frac{ {v}^{2} }{r} [/tex]
Let p = 500W,
Let r = 100Ω,
[tex]500 = \frac{ {v}^{2} }{100} [/tex]
[tex]500 \times 100 = {v}^{2} [/tex]
[tex] {v}^{2} = 50 \: 000[/tex]
[tex]v = \sqrt{50000} [/tex]
[tex]v = 224 \: \: (3s.f)[/tex]
How did Confucius believe that kings should behave? (Site 1) HURRY!!!!!
Answer:
Confucius believe that kings should behave RIGHTLY
Explanation:
CONFUCIUS believe that kings are supposed to behave rightly and rule justly ( according to the codes of ethics ) of the land and also live a right and just life.
Confucianism is an ancient philosophy established as far back as the fifth century by Confucius it's main aim was to guide the ancient and modern systems of government in the whole of Asia. it is called a religion by some while some call it a code of ethics and way of leadership
Answer:
CONFUCIUS believe that kings are supposed to behave rightly and rule justly ( according to the codes of ethics ) of the land and also live a right and just life.
Confucianism is an ancient philosophy established as far back as the fifth century by Confucius it's main aim was to guide the ancient and modern systems of government in the whole of Asia. it is called a religion by some while some call it a code of ethics and way of leadership
Explanation:
1. You are floating in a canoe in the middle of a swimming pool. Your friend is at the edge of the pool, carefully noting the level of the water on the side of the pool. You have a bowling ball with you in the canoe. If you carefully drop the bowling ball over the side of the canoe and it sinks to the bottom of the pool, does the water level in the pool rise or fall?
Answer:
lower
Explanation:
When you move the ball from your canoe to the water causes the water level to fall
If you carefully drop the bowling ball over the side of the canoe, and it sinks to the bottom of the pool, the water level in the pool will fall.
How to measure water level?Both the bowling ball and the canoe will float on top of the water when they are in a canoe because they will displace more water than they can hold. However, if dropped, the ball will plummet to the bottom of the pool.
The bowl sinks because it is denser than water. The ball will in this scenario move less water than its own volume.
Therefore, when the ball is with you in the canoe in the second scenario, the volume of water displaced will be less than in the first example. Consequently, lower volume
Therefore, the water level in the pool will drop if you carefully toss the bowling ball over the side of the canoe and let it land at the bottom of the pool.
To learn more about the water level, refer to the link:
https://brainly.com/question/17750427
#SPJ2
Nitrogen-14 has 7 protons. How many neutrons does it have?
Answer:
7
Explanation:
Using information found on the Periodic Table of Elements:
Nitrogen contains 7 protons, 7 neutrons, and 7 electrons.
..
Atomic number is 7
Atomic mass is 14
The mass number is the sum of protons and neutrons in the nucleus.
=> You can subtract the atomic number from the mass number to find the number of neutrons.
Name one benefit and one risk of each biotechnology practice:
Genetic engineering:
Cloning:
Artificial selection:
PLEASE!!!!!!!!!!!!!!!!!!!!!!!
Answer:
Genetic Engineering:
Benefits: More nutritious food, less use of pesticides, increased supply of food with reduced cost and longer shelf life, faster growing plants and animals
Risk: Creating foods that can cause allergic reaction or that are toxic, Unexpected ir harmful genetic changes, genes moving from one GM plant or animal to anotherplant or animal that is not genetically engineered
Cloning:
Benefits: accelerated reproduction of farmers productive livestock to better produce safe and healthy foods, reproduction of the healthiest animals, minimizing the use of antibiotics, growth hormones and chemicals
Risks: Unwantedhealty effects, defects, premature aging and problems with the immune system
Artificial Selection:
Benefits: no safety issues as those brought by genetic engineering, cheap for agricultural businesses, morally accepted, produce crops with higher yield
Risks: Removes variation, makes organism susceptible to diseasesor changes in environment, unable to control genes inherited by offspring
Answer:
Genetic Engineering
Benefits
-Ability to create food that is resistant to pests, cold, and disease.
-Greater food production volume and increased vitamins.
Risks
-Concerns about long-term health risks.
-Lack of regulation.
Cloning
Benefits
-Ability to increase endangered animal populations.
-Possibility of eliminating diseases and defective genes.
Risks
-Shorter lifespan for cloned animals.
-Greater chance of health issues for cloned animals.
Artificial Selection
Benefits
-Allows for selection of desired traits.
-Ability to create better versions of organisms.
Risks
-Loss of genetic diversity.
-Increased chance of diseases that can shorten lifespan.
Explanation:
investigating sound waves lab please help!
Answer:first u have to figure out what the topic is then look for a rubric draft
Explanation:
How many windows should the real tree house have
Answer:
88
Explanation:
Answer:
2
Explanation:
88 was wrong and the answer then said 2
What type of phase change occurs when water vapor in the atmosphere changes to liquid water in clouds?
Answer:
condensation, the process of changing from a gas to a liquid
what is force derived from
Answer:
Force can also be described intuitively as a push or a pull. ... It is measured in the SI unit of newtons and represented by the symbol F. The original form of Newton's second law states that the net force acting upon an object is equal to the rate at which its momentum changes with time.
Explanation:
hope this helps : )
Which of the following statements about developing a personal fitness program is NOT true?
A When developing a personal fitness program, it is important to implement strategies that will help
maintain the program as well as give it a successful start
B. Personal factors such as age, health concerns, and likes are important to consider when developing
a personal fitness program
C. The starting skill level of the physical activities included in a personal fitness program should be
determined from other individuals' fitness programs
D. The FITT principle should be used when developing a personal fitness program,
Please select the best answer from the choices provided
A
B
Save and Exit
Next
Answer:
C
Explanation:
The starting skill level of the physical activities included in a personal fitness program should be determined from other individuals' fitness programs is a statement which is not true. Everyone starts their personal fitness journey at a different level which should be regarded . A fitness test should be taken to determine where an individual should start their new lifestyle.
Answer:
C. I got it right :)
Explanation:
Remy wonders if the height of the mountain has anything to do with the eventual size of the tsunami wave. How should Remy test this? A. Cause avalanches on several different mountains and see how large each resulting tsunami is. B. Build different-sized model mountains at the edge of a pool, pour sand down the side of each mountain, and see how large each resulting wave is. C. Pour different amounts of sand down the side of a model mountain into a pool and see how large each resulting wave is. D. Build a model town at the edge of a pool and see how large waves must be to cause damage to the buildings.
Answer:
The answer is B
Explanation:
I got this from study island
Whats the voltage supplied by the battery if the resistance is 480 Ohms?
How is a problem and solution text
structure different from a cause and
effect text structure?
this refers to the process of manufacturing that introduced powered machinery to the production of goods
mix 4 L of 30°C water is 6 L of 40°C water and you’ll have water at what temperature?
Answer:
dont know
Explanation:
need points
- Un automóvil parte del reposo y acelera uniformemente hasta alcanzar una rapidez de 0,255km/h en un tiempo determinado de 3/4 min. Determinar su aceleración y la distancia recorrida.
Answer:
a). la acelaración del automóvil es [tex]1.574x10^{-6}km/s^{2}[/tex]
b). la distancia recorrida por el automóvil es [tex]1.59x10^{-3}km[/tex]
La aceleración puede ser encontrada por medio de la ecuación cinemática que corresponde a un movimiento rectilíneo uniformemente variado.
[tex]a = \frac{v_{2}-v_{1}}{t}[/tex] (1)
Donde [tex]v_{2}[/tex] es la velocidad final y [tex]v_{1}[/tex] es la velocidad inicial.
La velocidad inicial del automóvil sera cero ([tex]v_{1} = 0[/tex]) ya que parte del reposo.
Antes de remplazar los valores en la ecuación 1 es necesario expresar el tiempo en unidades de segundos.
[tex]t = 0.75min \cdot \frac{60s}{1min}[/tex] ⇒ [tex]45s[/tex]
La rapidez final puede ser expresada en unidades de [tex]km/s[/tex]:
[tex]v_{2} = 7.083x10^{-5}km/s[/tex]
[tex]a = \frac{7.083x10^{-5}km/s - 0km/s}{45s}[/tex]
[tex]a = 1.574x10^{-6}km/s^{2}[/tex]
Por lo tanto, la acelaración del automóvil es [tex]1.574x10^{-6}km/s^{2}[/tex]
Luego para calcular la distancia se puede utilizar la siguiente ecuación.
[tex]d = v_{1}t + \frac{1}{2}at^{2}[/tex] (2)
[tex]d = (0km/s)(45s) + \frac{1}{2}(1.574x10^{-6}km/s^{2})(45s)^{2}[/tex]
[tex]d = 1.59x10^{-3}km[/tex]
Por lo tanto, la distancia recorrida por el automóvil es [tex]1.59x10^{-3}km[/tex]
What features of your design helped your rocket hit the target?
Answer:
What features of your design helped your rocket hit the target? (Key factors include the rocket's weight, launch angle, ability to fly straight, and the balloon's pressure.) After testing, what changes did you make to your rocket and launcher? (Answers will vary.)
Explanation:
PLEASE GIVE ME BRAINLIEST IF NEW YOULL SEE NEAR MY ANSWER MARK AS BRAINLIEST IF NOT YOULL HAVE TO WAIT A DAY AND BRAINLY WILL REMIND YOU
Which of the following is a conversion from light energy to chemical energy?
a. turning on a stove to heat dinner
b. growing an apple tree
c. turning on a lamp
d. Turning on a blender
Answer:
A
Explanation:
turning on a stove to heat dinner because it undergoes a chemical reaction to transform into other substance
Growing up a tree is a conversion from light energy to chemical energy.
What is law of energy conservation?Energy can neither be created nor be destroyed , it gets only transferred from one form to another.
What is photosynthesis?The process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water.In simple words by the process of photosynthesis a tree makes food for itself.What happens when a tree grows?Tree makes food by absorbing the sunlight.The energy of the sunlight is used in making of ATPs in trees.ATP ( Adenosine triphosphate ) is used in various operations in trees.So, the sunlight is light energy which get converted into ATPs , which is chemical energy.
Thus, Growing up a tree is a conversion from light energy to chemical energy.
Learn more about Photosynthesis here -
https://brainly.com/question/19160081
#SPJ2
When a feather and coin are dropped towards the surface of the earth , do they reach ground together
Answer:
The coin will reach the ground first.
Explanation:
Because feather's mass is very low in comparison to a coin and due to air present in earth's atmosphere it will come down slowly.
hope it helps!
Answer:
The coin
Explanation:
Because the coin is heavier than the feather
A car slows down from 27.7 m/s
to 10.9 m/s in 2.37 s.
What is its acceleration?
Answer:
a = (Vf - Vi) / t = (10.9 - 27.7) / 2.37 = -16.8 / 2.37 = -7.09 m/s/s
negative means slowing down
Explanation:
Heat pumps move heat from __________ to __________ areas & REQUIRES energy. *
A. cold, hot
B. hot, cold
What is the electrical power when the current is 20 amps and the voltage is 15 volts? *
A. 35 watts
B. 1.33 watts
C. 300 watts
Work is a transfer of matter. *
A. True
B. False
Help
What are energy and work
Answer:
In physics, energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object. Energy is a conserved quantity; the law of conservation of energy states that energy can be converted in form, but not created or destroyed.
In physics, energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object. Energy is a conserved quantity; the law of conservation of energy states that energy can be converted in form, but not created or destroyed.
Explanation:
HOPE THIS HELPSWhat do you think happened to the energy you transferred to the notebook when you pushed it?
Answer:
It got transferred to kinetic energy
Explanation:
Answer:
The energy changed from kinetic energy to heat energy. Friction causes heating.
What is thermal energy
Answer:
Thermal Energy. Thermal energy is the internal energy of an object due to the kinetic energy of its atoms and/or molecules. The atoms and/or molecules of a hotter object have greater kinetic energy than those of a colder one, in the form of vibrational, rotational, or, in the case of a gas, translational motion.
Explanation:
What is power?
A. a magnitude of a force needed to move an object
B. how much work can be done in a given time
C. the distance over time that an object moves
D, The energy needed to create work
Answer:
The answer is B.
Explanation:
The formula of power is :
[tex]power = \frac{work \: done}{time} [/tex]
* Work done can be "Energy"
A 25.2 kg gazelle moving 2.33 m/s
sees a lion, and exerts a 113 N
force to accelerate. How fast is
it moving 2.00 s later?
The velocity of the gazelle after 2 seconds is equal to 11.3 m/s.
What is the equation of motion?The equations of motion have described the relationship between the time, velocity, acceleration, and displacement of a moving object.
The equations of motions can be described as shown below:
[tex]v = u + at\\S = ut +\frac{1}{2}at^2 \\ v^2-u^2 = 2aS[/tex]
Given the mass of the gazelle, m = 25.2 Kg
The force acting to accelerate, F = 113N
The acceleration in the speed of gazelle is given by: a = F/m
a = 113/ 25.2
a = 4.48 m/s²
The initial speed of the gazelle, u = 2.33 m/s
From the first equation of motion we can calculate the final velocity of the gazelle:
v = u + at
v = 2.33 + (4.48) (2)
v = 11.3 m/s
Therefore, the velocity of the gazelle 2 seconds later is 11.3 m/s.
Learn more about the equation of motion, here:
brainly.com/question/16982759
#SPJ2
