Answer:=mgh
Explanation:
You apply a force of 68N to lift a box 4m off the ground in 2s. What was your power?
Answer:
136........
.............
Can someone help please
Answer:
The correct answer is 24.
Explanation:
1. An elephant has a mass of 5,500 kg. What is the elephant's weight?
Write equation here:
Answer:
12125.42 Lbs.
Explanation:
The weight of the elephant is 53,900 N
The given parameters;
mass of the elephant = 5,500 kg
The weight of the elephant is calculated as;
Weight = mg
where;
m is the mass of the elephant
g is acceleration due to gravity = 9.8 m/s²
The weight of the elephant is calculated by substituting the given parameters;
Weight = 5,500 x 9.8 = 53,900 N
Thus, the weight of the elephant is 53,900 N
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Help anyone ? I need to pass this test !!!
Sitting causes your hip flexors to shorten, this can cause:
a.
weight gain
b.
heart disease
c.
tight hips
d.
varicose veins
Answer:
c. tight hips
Explanation:
sitting for too long is a major culprit in tightening the hip flexors. When you sit all day at a desk, the iliopsoas, in particular, shortens, making the flexors tight.
Calculate equivalent resistance in the following between points P and Q.
[tex] \sf{(i) \: We \: are \: given \: a \: figure \: of \: Series \: Circuit. }[/tex]
[tex] \sf{Here \: Resistances \: are ,}[/tex]
[tex] \sf• \: R_{1} =3 Ω[/tex]
[tex] \sf• \: R_{2} =3Ω[/tex]
[tex] \sf• \: R_{3} =3Ω[/tex]
[tex] \sf{We \: know \: the \: formula \: of \: the \: Equivalent \: Resistance \: for \: Series \: Circuit, }[/tex]
[tex] \bf \red {\bigstar {\: R_{s} = R _{1} + R _{2} + R_{3}+...+ R_{n}}}[/tex][tex] \sf ⇒ R_{s} =(3 + 3 + 3)Ω[/tex]
[tex] \sf \therefore R_{s} =9Ω[/tex]
[tex] \sf \pink{ \boxed{Answer : 9 Ω.}}[/tex]
[tex] \\ \\ [/tex]
[tex] \sf{(ii) \: We \: are \: given \: a \: figure \: of \: Parallel \: Circuit. }[/tex]
[tex]\sf{Here \: Resistances \: are ,}[/tex]
[tex] \sf• \: R_{1} =3 Ω[/tex]
[tex] \sf• \: R_{2} =3 Ω[/tex]
[tex] \sf• \: R_{3} =3 Ω[/tex]
[tex] \sf{We \: know \: the \: formula \: of \: the \: Equivalent \: Resistance \: for \: Parallel \: Circuit, }[/tex]
[tex] \bf \red {\bigstar {\: \frac{1}{R_{p}} = \frac{1}{R _{1}} + \frac{1}{R_{2}} + \frac{1}{R_{3}}+...+\frac{1}{R_{n}} }}[/tex][tex] \sf⇒ \frac{1}{ R_{p} } = \frac{1}{3} + \frac{1}{3} + \frac{1}{3} [/tex]
[tex] \sf⇒ \frac{1}{ R_{p} } = \frac{1 + 1 + 1}{3} [/tex]
[tex] \sf⇒ \frac{1}{ R_{p} } = \frac{3}{3} [/tex]
[tex] \sf⇒ \frac{1}{ R_{p} } = 1[/tex]
[tex] \sf \therefore R_{p} = 1Ω[/tex]
[tex] \sf \pink{ \boxed{Answer : 1 Ω.}}[/tex]
hope it helps you.
the change in a pitch of a sound as an object moves closer or farther away is a result of
If a velocity-time graph is horizontal, then acceleration is
a
zero.
b
positive
С
less than 1.
d
none of the above
If the velocity-time graph is horizontal, the acceleration is zero because the slope will be zero.
How long will it take a bear to run 45 meters if it is traveling at 10m/s
Mice eat insects and get eaten by owls. In which case would a population of mice increase?
drought keeps grass from growing.
More mice die than are born.
The owl population increases.
The populations of insects increases.
pls help me with it..fast as possible...pls .....
Answer:
Because the light only spears to part of the water so it would appear less deep
HELLPPP!!!
which of the following is a human action that could lead to decreased amounts of greenhouse gases found in the atmosphere, such as carbon dioxide?
A ) Generating energy by burning coal
B ) Deforestation
C ) Driving Automobiles
D) Planting Trees
Answer:
D
Explanation:
planting trees because they store these gases and turn it into oxygen
Answer:
It is going to be D.
Explanation:
Hope this helps
How does physical fitness best reflect having a scientific foundation (connected to science)?Explain
Explanation:
Physical fitness is a state of health and well-being and, more specifically, the ability to perform aspects of sports, occupations and daily activities. Physical fitness is generally achieved through proper nutrition, moderate-vigorous physical exercise, and sufficient rest.
Physical fitness is generally achieved through exercise. Photo shows Rich Froning Jr. – four-time winner of "Fittest Man on Earth" title.
Before the industrial revolution, fitness was defined as the capacity to carry out the day’s activities without undue fatigue. However, with automation and changes in lifestyles physical fitness is now considered a measure of the body's ability to function efficiently and effectively in work and leisure activities, to be healthy, to resist hypokinetic diseases, and to meet emergency situations.
Aponte a alternativa correta que faz a relação entre energias renováveis e sustentabilidade - O investimento em energia renovável ajuda o meio ambiente e a diminuição dos gases de efeito estufa e destruição da natureza -Não a relação entre esses dois conceitos, pois o desenvolvimento sustentável esta ligado a produção de materiais recicláveis -O desenvolvimento sustentável esta agregado ao desenvolvimento econômico e não com energias renováveis -A produção de carros elétricos só vai aumentar a poluição do ar
Answer:
letra a
Explanation:
2 An object has a negative charge. Which statement about the object is correct? A Electrons have been transferred onto it. B Electrons have been transferred away from it. C It has more positive charges than negative charges. D Positive charges have been transferred away from it.
Answer:
A . Electrons have been transferred into it.
ps.. PLZ give me brainliest!!!
Tysm! Hope this helps!
The graph shows the amplitude of a pausing wave over time in secondo (o).
What is the approximate frequency of the wave shown?
A. 0.5 Hz
B. 0.1 Hz
C. 9 Hz
D. 20Hz
Answer:
its B
Explanation:
i just took the test
0.1 Hz the approximate frequency of the wave shown.
What is Frequency?In physics, frequency is the number of waves that pass a fixed point in a unit of time as well as the number of cycles or vibrations that a body in periodic motion experiences in a unit of time.
After moving through a sequence of situations or locations and then returning to its initial position, a body in periodic motion is said to have experienced one cycle or one vibration. See also basic harmonic motion and angular velocity.
The frequency is 2 per second if the period, or time interval, needed to complete one cycle or vibration is 1/2 second; it is 100 per hour if the duration is 1/100 of an hour.
Therefore, 0.1 Hz the approximate frequency of the wave shown.
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why do other gases in the air not condense and change States
Answer:
b) the air does not get warm enough
What does the model below represent?
2CO + O2 → 2C02
A. An experiment
B. A chemical reaction
C. A release of heat
D. The production of oxygen
Answer:
B. a chemical reaction
Explanation:
2CO + O2 → 2C02
Answer:
B. A chemical reaction
it's formed when carbon monoxide react with oxygen and forms carbon dioxide
You can take your heart rate for 6 seconds and multiply by 10 to get the 60 second count quickly during
True
False
Answer:
true
Explanation:
Whose atomic theory was the first to introduce the idea that all things are made from indivisible spheres called atoms and used evidence and research to back his findings? *
Answer:
Dalton's atomic theory
Explanation:
Dalton's atomic theory was the first to introduce the idea that all things are made from indivisible spheres called atoms and used evidence and research to back his findings. This theory was based on the law of constant composition and the law of conservation of mass. Also, this theory explains the matter in terms properties of atoms.
The driver of a 1.5 x 10^3 kg car is traveling cast at 10 ms and increases its speed to 30 m/s east over 15 seconds. What is the initial and final momentum of the body? What is the net force acting on it?
Answer:
See explanations below
Explanation:
Force = m(v-u)/t
mass m = 1.5*10^3kg = 1500kg
v = 30m/s
u = 10m/s
Time t = 15secs
F = 1500(30-10)/15
F = 1500(20)/15
F = 100 * 20
F = 2000N
Force acting on it is 2000N
momentum = mass * velocity
final momentum = 1500 * 30
final momentum = 45000kgm/s
initial momentum = 1500 * 10
initial momentum = 15000kgm/s
The initial momentum, Final momentum and net force acting on the body are 15000 kgm/s, 45000 kgm/s, and 2000 N respectively.
To solve for initial momentum, Final momentum, and average force, we use the formulas below.
⇒ Formulas
M = mu................. Equation 1M' = mv................... Equation 2F = M'-M/t................ Equation 3⇒ Where:
M = Initial momentum of the carM' = Final momentum of the caru = Initial velocity'v = Final velocityt = timeF = net force acting on the car.From the question,
⇒ For The Initial momentum
m = 1.5×10³ kgu = 10 m/s east⇒ Substitute these values into equation 1
M = 1.5×10³×10M = 15000 kgm/sAlso for Final momentum,
⇒ Given:
v = 30 m/s⇒ Substitute into equation 2
M' = 1.5×10³×30M' = 45000 kgm/sAnd finally for net force,
⇒ Given:
t = 15 seconds⇒ substitute into equation 3
F = (45000-15000)/15F = 30000/15F = 2000 NHence,The initial momentum, Final momentum and net force acting on the body are 15000 kgm/s, 45000 kgm/s and 2000 N respectively.
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10 points whats an average height for a egg drop? 20m or what?
Answer:
Egg Drop Challenge height
The containers will be dropped from an initial height of about 11.5 ft. The second and final drop will be from the second floor (about 19.5 ft).
Explanation:
Examine the cross-sectional slice of a stem of a mint plant. Which statement most specifically describes mint?
The available options are:
Mint is a dicot.
Mint is a monocot.
Mint is an angiosperm.
Mint is a bulb plant.
Answer:
Mint is a dicot.
Explanation:
Given the fact that Mint is considered to be a member of Lamiaceae, an angiosperm plant which is characterized by typically having leaves that consist of reticulate vacation and appears like veins in structure. It also has a seed that contains two cotyledons.
Hence, it is considered a DICOT PLANT due to these characteristics. The botanical name of Mint is referred to as Mentha arvensis.
Answer: A
Explanation:
Flies could be prey to predator plants, too what plant snacks on this fly?
Answer:
A Venus Fly trap
Explanation:
Insectivorous plants like pitcher plant and venus fly trap snack on flies or insects.
InsectivorousPlants which feed on insects are the insectivorous plants.These plants have special structures like leaves which help in trapping insects.The insects die in the enzymes and acidic juices so produced by the plant. The insects provide nourishment to these plants.
Therefore, insectivorous plants like pitcher plant and venus fly trap snack on flies or insects.
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NEED HELP ASAP!!! Please and thank you
Answer:
Always.
Unbalanced forces mean there will be an acceleration on the object, so speed will change no matter how fast its going already.
pls pls help me out AHH, what is not true about MEIOSIS?
A. The chromosomes in the daughter cells half the number from the parent cell.
B. The chromosomes in the daughter cells are the same number as the parents cell.
C. The only cells that will undergo meiosis will become sperm or egg cells used for reproduction.
D. The shuffling of genes happens in meiosis.
Answer:
B.
Explanation:
This is not true as the number of chromosomes in the daughter cells are half the number in the parent's cells
Which one is a element??
Answer:
A.) Carbon
Explanation:
Carbon is an element on the periodic table.
it has the symbol C, and is found in almost every single thing!
Answer:
Carbon
Explanation:
Ig
What is the momentum of a 2.0-kg object that has a velocity of 8.0 m/s ?
Please help
What could you use to split white light into the colors of the rainbow?
A. A flashlight
B. A capacitor
C. A light bulb
D. A prism
Answer:
D
Explanation:
Answer:
prism
Explanation:
Why is photosynthesis essential for plant homeostasis?
a
To color leaves green
b
To make food for the plant
c
To remove carbon dioxide from leaves
d
To make new types of cells
What’s I called when a HORIZONTAL VELOCITY DIVIDED BY VELOCITY.