Answer:
P= 720 watt
Explanation:
P= IV
P= (6)(120)
P= 720 watt
How to keep my family safe after a hurricane?
Answer:
Stay Safe After a Hurricane or Other Tropical Storm1. Stay out of floodwater.
2. Never use a wet electrical device.
3. If the power is out, use flashlights instead of candles.
4. Prevent carbon monoxide poisoning.
5. Be careful near damaged buildings.
6. Stay away from power lines.
7. Protect yourself from animals and pests.
8. Drink safe water. Eat safe food.
EASY BRAINLIEST PLEASE HELP!!
-if you answer correctly ill give you brainliest which will give you 100pts-
(if you put links or don't answer accordingly im reporting your account)
Answer:
solution given:
frequency[f]=215.0Hz
velocity[V]=x
wave length=2.4m
we have
wave length=[tex] \frac{V}{f} [/tex]
2.4m=[tex] \frac{x}{215} [/tex]
2.4×215=[tex] \frac{x}{} [/tex]
x=516 m/s
velocity=speed =516m/s
Answer:
516 m/s
Explanation:
Velocity = Frequency * Wavelength
If wavelength = 2.4m, and Frequency = 215 hz
Then Velocity = 2.4 * 215 which is equal to 516
Hence, velocity = 516 m/s
An object is moving at 4.66 m/s when it accelerates at 5.66 m/s2 for a period of 2.35 s. The distance it moves in this time is ____ m.
Answer:
S = 26.58 meters
Explanation:
Given the following data;
Initial velocity = 4.66 m/s
Acceleration = 5.66 m/s²
Time = 2.35 seconds
To find the distance travelled by the object, we would use the second equation of motion;
S = ut + ½at²
Where;
S represents the displacement or height measured in meters.
u represents the initial velocity measured in meters per seconds.
t represents the time measured in seconds.
a represents acceleration measured in meters per seconds square.
Substituting into the equation, we have;
S = 4.66*2.35 + ½*5.66*2.35²
S = 10.951 + (2.83 * 5.5225)
S = 10.951 + 15.629
S = 26.58 meters
What services do plants provide? Select the three that apply.
A. Plants release carbon dioxide into the atmosphere.
B. Plants are a source of medicine.
C. Plants are a source of beauty products.
D. Plants prevent soil erosion.
The answer to this is B, C, and D. hope this helped
Which of the following are states of matter?
A. Liquid
B. Solid
C. Mixture
D. Gas
E. Compound
Answer:
There are four natural states of matter: Solids , liquids, gases and plasma. The fifth state is the man-made Bose-Einstein condensates. In a solid, particles are packed tightly together, so they don't move much.
Explanation:
ohms Long describes the relationship between electronic current voltage and ___
Answer:
voltage ,current and resistance
I need help please and thanks
Answer:
2. Given:
m=1000Kg
a=(9.8m/s)^2
F=m×a
=9.8×1000
=9800N
3.Given:
m=50kg
f=500N
F=m×a
500N=50Kg×a
50kg×a=500N
a=500÷50
a=(10m/s)^2
You are out in your sail-boat and the wind stops blowing when you arr 20 meters from shore- you are stuck. You have no paddles in the boat and are not able to reach the water to push with your body use Newton's third law of motion to identify what you can do to get to shore using the box of apples you find in the boat
Answer:
According to Newton's third law, throwing the apples in the opposite direction to the shore with a force, F₁, one after the other, repeatedly, pushes the both towards the shore with a force also equal to F₂ until the boat reaches the shore
Explanation:
The given parameters are;
The distance of the boat from the shore = 20 meters
The available propulsion devices = A box of apples
According to Newton's third law of motion states that action and reaction are equal and opposite
Therefore, according to Newton's third law, by throwing the apple into the water in the opposite direction to the shore, such that each apple of mass m₁, is given an acceleration a₁, will result in a force, F₁ = m₁a₁ in the direction away from the shore
According to Newton's third law of motion, the force F₁, will result in an opposite reaction force F₂ in the direction of the shore, such that as F₁ is made large by giving a higher acceleration, a₁ the apples, reaction force on the occupant of the boat , who is throwing the apple, F₂, increases
F₁ = -F₂
Where;
F₂ = m₂·a₂
a₂ = The acceleration of the boat and the occupant
m₂ = The mass of the boat and the occupant
Given that the mass, m₂, is constant, the acceleration of the boat and occupant, a₂, increases as F₁ increases, increasing the speed of the boat from zero to positive value above zero m/s and the boat moves towards the shore
An attractive force of |1N| exists between two charged particles. The magnitude of both charges is the same. If the particles are 0.25m apart what is the value and sign of the charge for both particles.
A. (- 2.6x10-6 C) and (+ 2.6x10-6 C)
B. (+ 2.7x10-11 C) and (- 2.7x10-11 C)
C. (- 5.27x10-6 C) and (+ 5.27x10-6 C)
D. (- 6.94x10-12 C) and (- 6.94x10-12 C)
Answer:
A: -2.6 × 10^(-6) C and 2.6 × 10^(-6) C
Explanation:
According to coulombs law, the formula for the force between 2 charged particles is;
F = kq1•q2/r²
Where;
F is Force = |1N|
q1 and q2 are the charges of both particles
k is coulombs constant = 9 × 10^(9) N.m²/C²
r is distance between particles = 0.25
Now, the force |1N| means -1 or +1
Thus;
-1 = 9 × 10^(9) × q1•q2/(0.25)²
Or
1 = 9 × 10^(9) × q1•q2/(0.25)²
Thus;
q1•q2 = -6.94 × 10^(-12)
Or q1•q2 = 6.94 × 10^(-12)
Now, we are told that the magnitude of both charges are the same.
Thus;
q² = 6.94 × 10^(-12)
q = √(6.94 × 10^(-12))
q = 2.6 × 10^(-6) C
Since from earlier, we saw that;
q1•q2 = -6.94 × 10^(-12)
Or q1•q2 = 6.94 × 10^(-12)
Thus means that one of the charges will be negative while the other will be positive.
Thus, the charges are;
-2.6 × 10^(-6) C and 2.6 × 10^(-6) C
8. What kind of information do black hole detectors not provide?
A. precise timing
B. specific positional information
C. photon intensity
D. power of a black hole
before each item.
1. Which of the following refers to chemical digestion?
A. Chewing of food B.. Grinding of food C. Tearing of food D. Amylase in the saliva
2. In what organ most of the absorption process happen?
A. Stomach B. Small intestine C. Large intestine D. Esophagus
3. It is a digestive disorder wherein the body has the inability to digest sugar?
A. Gastritis B. Lactose intolerance
C. Diarrhea D. Peptic ulcer
4. The following are part of the digestion process EXCEPT
A. ingestion B. assimilation
C. excretion D. respiration
5. It helps to moisten the food and contains the enzyme amylase.
A. Saliva
B. Stomach C. Mouth D. Teeth
6. It is a process of taking in digested food nutrients into the cell by providing new protoplasm and energy
needed during the cell activities.
A. Ingestion B. assimilation C. Absorption D. Excretion
7. What causes constipation?
A. Lack of fiber in the body B. Uncontrolled growth of abnormal cells
C. Lack of enzyme lactase D. Excessive consumption of coffee and acidic drinks
8. The nutrients from the digested food are being absorbed by the following processes except
A. passive diffusion B. facilitated diffusion C. active transport D. ingestion
9. It is the organ that is responsible for reabsorbing water and minerals that are not digested in the small
intestine.
A. Stomach B. Large intestine C. Small intestine
D. Esophagus
10. The following are the reasons why digested food should be assimilated into the cell EXCEPT
A. they are converted into protoplasm. C. they provide energy needed in cell activities
B. they are needed to store fats. D. they are converted to build cell membranes
11. What is the best treatment for a person who suffers lactose intolerance?
A. Take antibiotics
B. Balanced diet
C. Take lactase supplements before eating food contains dairy D. Practice healthy lifestyle
12. What happen during the assimilation process?
A. Absorbed nutrients are delivered into the cell
B. Breaking down of food into tiny pieces
C. Elimination of waste product of the digestion process D. Absorption of nutrients from the digested food
13. How does the enzyme amylase help in the absorption of nutrients?
A. It helps in the digestion of proteins.
B. It helps in the digestion of fats.
C. It helps in the digestion of carbohydrates. D. It helps in the digestion of lipids.
14. It is characterized as loose bowel caused by an infection of bacteria that we get from the food we eat.
D. GERD
A. Diarrhea
C. Gastritis
B. Peptic Ulcer
15. How saliva helps in the digestion process?
A. It reabsorbs nutrients from the food we eat.
B. It contains the enzyme amylase that helps in the digestion of starch.
C. It absorbs nutrients and distribute it in the bloodstream.
D. All of the above
16. How colon cancers can be treated?
B. By exercising
A. By eating foods rich in fiber
D. By undergoing surgeries.
g C. By taking lactase supplements
Answer:
1:D
2:B
3:B
4:D
5:A
13:A
14:A
15:B
16:A
7:A
9:B
8:B
11:C
12:A
Explanation:
Sorry for incomplete answers
4.) What determines a star brightness? *
a. Size
b. Temperature
c. Size & Temperature
d. Color & Temperature
for every 100 joules or useful energy output, the heater wastes 100 joules, find the input energy of the heater.
what is the correct name for a bond between two phosphorus adtoms and three oxygen atoms
Covalent
Explanation:
Covalent Bond
Answer:
diphosphorus trioxide
Explanation:
URGENT A person was standing on top of an office building and ‘accidentally' dropped a rock off the roof . How tall is the building if the total velocity is 123m/s and the horizontal velocity is 22m/s?
Answer:
Building is 747.19 m tall
Explanation:
Given, t
Total velocity v = 123 m/s
Horizontal velocity or the X -component if velocity vx = 22 m/s
For a horizontal projectile motion
V = Sqrt (vx^2 + g^2t^2)
Or t = sqrt{(v^2 – vx^2)/g^2} ---Eq (1)
Time of flight
t = sqrt (2h/g) – Eq (2)
where h is the height
Equating, both the equation, we get –
h = (123^2 – 22^2)/19.6 = 747.19 m
Un cuerpo se desplaza desde el punto 5,7 m al 7,5 en linea recta. cual es el valor del desplazamiento de la coordenada x?
Answer:
Δx = 2m
Explanation:
From the given information:
De la información dada:
El desplazamiento ocurrió en un vector que se mueve desde una posición inicial particular hasta el final.
Entonces, supongamos que el desplazamiento es D;
Luego:
D = (7,5 ) - (5,7)
D = (2, -2)
Por lo tanto, el valor del desplazamiento de la coordenada x; Δx = 2m
What should you do if your brakes fail? Hook your shoe under the pedal and see if you can free it. Pull the steering wheel back. Turn on your cruise control. Try pumping the brake pedal to increase pressure.
Answer: Try pumping the brake pedal to increase pressure.
Explanation:
When the brake of a vehicle fails when driving, it's important to pump the brake pedal to increase pressure.
Sometimes, there may be a soft brake due to the fact that the brake master cylinder of the vehicle cannot full pressure which is necessary for the braking power.
One should quickly pump the brake pedal with his or her foot so as to generate enough pressure which will be necessary in stopping safely.
I need help with my physics homework agh! Please help it's due tomorrow.
Rubbing both pieces cause each piece to have a negative charge.
When two parts have the same they repel each other, so holding one piece up tot he end of the other piece would push it away.
Because one piece is held in the middle by a string, it would rotate the piece in a circle.
If they held the piece to the other end of the one held by a string it would start to rotate in the opposite direction.
Around the turn of the twentieth century, inventor Robert Shuman was engineering products that used energy directly from the Sun to power motors and farms. He stated that coal and oil would eventually run out and that humans needed to learn how to use the more-abundant energy resource of the Sun. During which stage of technological design did Shuman identify that using oil and coal would be a problem? first second third fourth
Answer: First stage
Explanation:
The four stages of technological design include:
• identifying a problem.
• Designing a solution.
• Implement, build, and test the design.
• Determine if solution met the need.
In this scenario, Robert Shuman identified the problem. This was depicted as he stated that coal and oil would eventually run out and that humans needed to learn how to use the more-abundant energy resource of the Sun,
hello please help i’ll give brainliest
Answer:
Acceleration is defined as the rate of change of velocity
Explanation:
Its A
Select the correct answer.
If you increase the frequency of a sound wave four times, what will happen to its speed?
OA
The speed will increase four times.
OB.
The speed will decrease four times.
The speed will remain the same.
OD.
The speed will increase twice.
O E.
The speed will decrease twice.
A machine lifts a 35 kg object doing 6860 J worth of work. How much power is produced by the machine if it lifts the object in 4 seconds?
350 W
60025 W
27440 W
1715 W
Answer:
Explanation:
We need the power equation for this which is
P = Work/time
We have everything we need to solve this (the mass of the object is extra information):
P = 6860/4
P = 1715W
I. Complete with one of these phrasal verbs: hand back, take off, h
1. The plane
late because of the bad weather,
...... take off.....(complete)
A basketball referee tosses the ball straight up for the starting tip-off. At what velocity must a basketball player leave the ground to rise 1.15 m above the floor in an attempt to get the ball
Answer:
the basketball player must leave the ground with a velocity of 4.748 m/s
Explanation:
Given that data in the question;
From the third equation of motion;
v² - u² = 2as
such that;
u² = v² - 2as
where u is the initial velocity, v is the final velocity, s is the displacement and a is acceleration
so initial velocity of the basket ball player will be;
u = √( v² - 2as )
so from the question; s is 1.15 m and a = - 9.8 m/s² { player is under negative acceleration to get to the ball } and final velocity of the player will be 0.
so we substitute
u = √( (0)² - (2 × -9.8 × 1.15 )
u = √ -( - 22.54 )
u = √ ( 22.54 )
u = 4.748 m/s
Therefore, the basketball player must leave the ground with a velocity of 4.748 m/s
A chemical plant produces ammonia using the following reaction. What
trade-off is made by running the reaction at a high temperature?
3H2 + N2 + 2NH3 + energy
O A. The higher temperature decreases the forward reaction rate, and
the pressure of the system is also lowered.
O B. The higher temperature increases the reaction rate, but it also
favors the reverse read on.
C. The higher temperature increases the forward reaction rate, and
the higher pressure increases the reaction rate.
D. The higher temperature decreases the reaction rate, but it also
favors the forward reaction.
Answer: B
Explanation: The higher temperature increases the reaction rate but also favors the reverse read on.
The higher temperature increases the reaction rate, but it also favors the reverse read on. So, option B.
What is meant by rate of a reaction ?The pace at which the products are created from the reactants in a chemical reaction is referred to as the rate of reaction.
Here,
Generally, reactions progress more quickly as the temperature rises.
The average kinetic energy of the reactant molecules will rise with a rise in temperature. The number of molecules having threshold energy rises, increasing the quantity of efficient collisions that actually occur.
Therefore, as the temperature of the reaction is increased, the rate of the reaction increases. But also favors the reverse reaction.
Hence,
The higher temperature increases the reaction rate, but it also favors the reverse read on.
To learn more about rate of reaction, click:
https://brainly.com/question/30546888
#SPJ5
Can someone please help me with this? Thank you so much!
The 2nd note will have a higher frequency or pitch.
Explanation:
The frequency of a standing wave in a string is given by
[tex]f = \frac{ \sqrt{ \frac{t}{ (\frac{m}{l} )} } }{2l} [/tex]
where t = tension of the string
m/l = mass density of the string
l = length of the string
By placing your finger on the string, you increase the tension and at the same time, shorten the length of the string, thereby increasing the frequency of the sound due to the standing wave produced on the string.
1. PART A: Which statement describes the central idea of
the text?
Baseball from pitch to hits
The correct answer to this open question is the following.
Unfortunately, you did not attach the article or the text. You also forgot to attach the options for the question.
However, trying to help you we did some deep research and can comment on the following.
The statement that describes the central idea of the text is "Baseball can be explained and improved by collecting data and studying the natural laws at play in the sport."
You are referring to the article written by Stephen Ornes, of August 21, 2013, for Science News for Students.
The author refers to the idea that baseball and physics are related and can be understood through the "eyes" of science. Statistics bring interesting data to help understand the game.
And this idea is correct because today, baseball coaches and other sports coaches as is the case of football, use a series of statistics and data to better hire talent for their respective teams, as well as to better create plans and game strategies derived from the results and interpretation of data.
sound does not propagate through a vacuum why
Explanation:
Because, there is not atmosphere in vacuum. So, sound does not propagate through a vacuum.
What is the speed of the Curiosity Rover if it travels 10,000 ft. in 25 hours? *
400 m/s²
400 ft./hr
250,000 ft./hr
250,000 m/s²
How much does it cost to operate a 90 W light bulb for one day if the cost per kilowatt-hour is $0.08
Answer:
$ 0.17
Explanation:
From the question given above, the following data were obtained:
Power (P) = 90 Watts
Time (t) = 1 day
Cost per KWh = $ 0.08
Cost of operation =?
Next, we shall convert 90 W to KW. This can be obtained as follow:
1000 W = 1 KW
Therefore,
90 W = 90 W × 1 KW / 1000 W
90 W = 0.09 KW
Next, we shall express 1 day in hour. This is shown below:
1 day = 24 hours
Next, we shall determine the energy consumption. This can be obtained as follow:
Power (P) = 0.09 KW
Time (t) = 24 h
Energy (E) =?
E = Pt
E = 0.09 × 24
E = 2.16 KWh
Finally, we shall determine the cost of operation. This can be obtained as follow:
Energy (E) = 2.16 KWh
Cost per KWh = $ 0.08
Cost of operation =?
Cost of operation = Energy × Cost per KWh
Cost of operation = 2.16 × 0.08
Cost of operation = $ 0.17
Thus, the cost of operating the light bulb for one day is $ 0.17