Explanation:
To determine your total daily calorie needs, multiply your BMR by the appropriate activity factor, as follows: If you are sedentary (little or no exercise) : Calorie-Calculation = BMR x 1.2. If you are lightly active (light exercise/sports 1-3 days/week) : Calorie-Calculation = BMR x 1.375.
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Energy is measured in form of calories.
What is energy?Energy is the ability or capability to do tasks, such as the ability to move an item (of a certain mass) by exerting force. Energy can exist in many different forms, including electrical, mechanical, chemical, thermal, or nuclear, and it can change its form.
To determine your total daily calorie needs, multiply your BMR by the appropriate activity factor, as follows:
If you are sedentary (little or no exercise) :
Calorie-Calculation = BMR x 1.2.
If you are lightly active (light exercise/sports 1-3 days/week) :
Calorie-Calculation = BMR x 1.375
Energy is measured in form of calories.
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What is required to make a resting object move or a moving object change its speed or direction?
Answer:
of a moving object?
Any change of speed or direction requires a force. In other words, forces cause acceleration. The direction in which an object moves depends on the direction of the force that is applied to the object. If there is more than one force, the forces work together
Acar's brakes decelerate it at a rate of -2.10 m/s2. What is the time, in seconds,
required to slow the car from 13 m/s to 5.0 m/s?
Answer:
t = 3.8 [s]
Explanation:
To solve this problem we must use the following equation of kinematics.
[tex]v_{f} =v_{o} -a*t[/tex]
where:
Vf = final velocity = 5 [m/s]
Vo = initial velocity = 13 [m/s]
a = desacceleration = 2.1 [m/s²]
t = time [s]
As we can see in the above equation the acceleration is negative because the car slows down its velocity.
5 = 13 - 2.1*t
2.1*t = 13 - 5
t = (8)/2.1
t = 3.8 [s]
Sonia's grandfather was not able to see clearly after returning from his walk on a bright sunny day. He was about to hit a chair when sonia held him and guided him to the nearby sofa. What could be the reason for sonia's grandfather not being able to see clearly on entering the house
Answer:
Sonia's grandfather was not able to see clearly after returning from his walk on a bright sunny day. He was about to hit a chair when Sonia held him and guided him to the nearby sofa, in sunny environment grandfather's eye is set according to high brightness, his pupils become small to lower the number of light rays entering his eye, when he returned from sunny environment to his house which was having low brightness so the pupils should enlarge to absorb more light to see clearly but due to old age his Ciliary muscle of the eye would have worn out and due to this poor coordination the image was not clear.
a force of 200N is being applied over an area measuring 0.75m^2
Answer:
357KG
Explanation:
Answer the questions to help you understand your parachute and forces experiment. Use the data table below to record your data. A sample entry has been made for you.
Note: For size, measure the distance between two parallel sides of the hexagon.
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The heat of vaporization of water is one of the highest known.
True
False
Answer:
it's true...........
How long would it take a car going 25 m/s to travel 1000 meters?
Answer:
40
Explanation:
1000 divided by 25 is 40
A student has been assigned to measure the density of an irregularly shaped piece of metal.which apparatus would be more appropriate to carry out this task
Complete Question:
A student has been assigned to measure the density of an irregularly shaped piece of metal.
Which apparatus would be most appropriate to carry out this task?
Group of answer choices
A. ruler, balance
B. beaker, crucible
C. flask, Bunsen burner
D. graduated cylinder, balance
Answer:
D. graduated cylinder, balance
Explanation:
In this scenario, A student has been assigned to measure the density of an irregularly shaped piece of metal.
The apparatus which would be most appropriate to carry out this task is a graduated cylinder and balance.
A graduated cylinder can be defined as a measuring cylinder used for the measurement of the volume of an irregularly shaped piece of metal or liquids. It is typically marked with horizontal lines on its side as units of measurement for volume. The balance is then used to weigh the metals mass.
A 73-kg Norwegian olympian ski champion is going down a hill sloped at 39 ◦ . The coefficient of kinetic friction between the skis and the snow is 0.15. a. How fast is the skier going 5.0 s after starting from rest? b. After the Norwegian skier has been moving for 5.0 s, the friction of the snow suddenly increased making the net force on the skier zero. What is the new coefficient of friction? c. How fast would the skier now be going after skiing for 5.0s?
Answer:
Explanation:
net force on the skier = mg sin 39 - μ mg cos39
mg ( sin39 - μ cos39 )
= 73 x 9.8 ( .629 - .116)
= 367 N
impulse = net force x time = change in momentum .
= 367 x 5 = 1835 kg m /s
velocity of the skier after 5 s = 1835 / 73
= 25.13 m /s
b )
net force becomes zero
mg ( sin39 - μ cos39 ) = 0
μ = tan39
= .81
c )
net force becomes zero , so he will continue to go ahead with constant speed of 25.13 m /s
so he will have speed of 25.13 m /s after 5 s .
1. Casey throws a stone horizontally at 20 m/s from a top of a cliff that is 40 m high, how long (t) will it take the stone to strike the ground? * 25 points 9.81 m/s^2 2.01 sec 2.85 sec 2.03 sec
Answer:
Total time taken t = 2.03 s (Approx)
Explanation:
Given:
Initial speed u = 20 m/s
Height h = 40 m
g = 9.81 m/s²
Find:
Total time taken t
Computation:
v = u + gt
0 = 20 + 9.81(t)
Total time taken t = 2.03 s (Approx)
What is the difference between a structural and inflation Epoch? (big bang eras)
Answer: the difference between a Structure is from the Latin word structura which means "a fitting together, building." Although it's certainly used to describe buildings, it can do more than that and a In physical cosmology the inflationary epoch was the period in the evolution of the early universe when, according to inflation theory, the universe underwent an extremely rapid exponential expansion.
Explanation:
why the blood pressure in human body is greater at the feet than at the brain. please help!!!!
Answer:
The pressure of liquid column is given by p=hpg, where h is depth, p is density and g is acceleration due to gravity.
Therefore, pressure of the liquid column increases with depth. The height of the blood column in a human body is more at feet than at the brain. Therefore, the blood pressure in humans is greater at the feet than the brain.
Answer:
the above answer is correct hope it's help you have a great day ☺☺keep smiling be happy stay safe
Which of the following information is necessary to describe an object's motion? position, speed, direction, position, direction, and speed
Answer:
position speed and direction
Explanation:
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A human heart beats an average of 80 beats per minute. How many beats is this in an hour? Express
your answer in scientific notation. (remember the steps for unit conversion)
60 minutes = 1 hour
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Answer:
4800
Explanation:
80*60=4800
Why is an important to come up with a plan for how are you to respond to negative peer pressure before the situation happens
A: it is hard to refuse in the situation if you have not decided how you would handle it ahead of time
B: because it is very likely you will face these situation in the future
C: both a and b
Answer:
C ( is hard to refuse in the situation if you have not decided how you would handle it ahead of time
B: because it is very likely you will face these situation in the future)
A _________ is a turning effect caused by a force.
Answer:
[tex]{\boxed{ \underline{ \sf{Moment \: of \: force}}}}[/tex]
✎ A moment of force is a turning effect caused by a force.
♁ Explanation :
☄ When force is exerted on a body , it results either in displacement of the body or its rotation about a point or axis i.e the rotation of turning effect of force. The turning effect of force acting on a body about an axis is called moment of the force. It may be clockwise or anti - clockwise.
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A dog chases a skateboarder travelling at 10.4\,\dfrac{\text{m}}{\text{s}}10.4 sm 10, point, 4, start fraction, start text, m, end text, divided by, start text, s, end text, end fraction. The skateboarder speeds up with a constant acceleration for 39\,\text{m}39m39, start text, m, end text over 3.3\,\text{s}3.3s3, point, 3, start text, s, end text. We want to find the acceleration of the skateboarder over the 3.3\,\text{s}3.3s3, point, 3, start text, s, end text time interval
Answer:Δx=v0t + 1/2 at 2
Why do psychologists conduct twin studies? What is the major
benefit of this?
Answer in one to two complete sentences.
Answer:
Its to make sure that the results are reliable.
If you make only one test, the person could have messed up so if there is a twin test, you know something is screwed up in the results so they know the try again and make sure they don't skrew up again.
Explanation:
What is the average speed of a boat that covers 104 miles in 5.06 hours
Answer:
20.55 miles per hour (rounded to the nearest hundredth)
Explanation:
Divide 104 by 5.06
20.55335968379447
Round to the nearest hundredth
20.55
This can also be 20.6
If you round to the nearest tenth
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How many grams of oxygen would there be in 8.00 g of KClO3?
Answer:
6.266829864 g
Explanation:
Potency or Power
How you say POTENCIA in english?
Power or Potency?
Speaking in the field of physics
_____________________________________
¿Cómo le llaman a la "potencia" -refiriéndome al campo de la Física- en inglés?
¿Es "potency", "power", o qué?
Answer:
In physics we call it power
When an unbalanced force acts on an object
Answer:
I think it is b because when you do something to an object it moves
What does the research show are the most favorable conditions for attitude change?
In terms of attitude change, the fundamental tenet of the cognitive theory would be that individuals are typically driven to lessen dissonance, which could be accomplished by altering their attitudes but also beliefs.
What is cognitive theory ?Cognitive theories concentrate on the premise that how exactly what people think causes the arousal of emotions, suggesting that some thoughts, as well as beliefs, as well as beliefs, contribute to healthy emotions as well as adaptive behavior while others lead to disturbing emotions and behaviors.
What is attitude change?When people sense unease or guilt as a result of cognitive dissonance, they can actively lessen the dissonance by altering their attitude, beliefs, and even conduct in relation to it in order to attain consistency with both the contradictory cognitions.
In terms of attitude change, the fundamental tenet of the cognitive theory would be that individuals are typically driven to lessen dissonance, which could be accomplished by altering their attitudes but also beliefs.
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What is the amount of solvent in an amount of solute?
Answer:
The concentration of a solution is a measure of the amount of solute that has been dissolved in a given amount of solvent or solution. A concentrated solution is one that has a relatively large amount of dissolved solute. A dilute solution is one that has a relatively small amount of dissolved solute.
Explanation:
How can mathematical models of Newton's law be used to test and improve engineering design ? Claim, Evidence, Reasoning PLEASE ! I need this badly !
Answer:
the mathematical models, Newton's second law, improve the response of our designs and allow us to modify them to be more resistant.
Explanation:
When an object is designed it is done based on some models or guides, specifically Newton's second law is given in the form
∑ F = m a
We can make a design and test with forces applied in several different places and with different intensity, to find weak points in the design, this is done a lot today in the construction of tall buildings, in the design of airplanes; The great advantage of this is that it allows you to see problems without significant cost of money and human lives.
There are also designs that can be modified to improve the response of our system to different external stimuli, this is widely used in the design of bridges, to see the response of the structure before load changes and different climatic conditions.
In summary, the mathematical models, Newton's second law, improve the response of our designs and allow us to modify them to be more resistant.
An object travels 15m in 3 s. What is it's speed?
Answer:
5 m/secExplanation:
speed = distance / time
= 15m / 3sec
= 5 m/sec
Answer:
5 m/s
Explanation:
The equation for speed is distance/time. The distance, 15, will go over the time, 3. So, we have 15/3.
You can simplify this by dividing both sides by 3. 15/3 is 5. 3/3 is 1. Now we have 5/1, with 5 as meters, 1 and second.
Therefore, the correct answer is 5 m/s.
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A 10.0 kg box is dragged 5.00 meters across a rough horizontal floor by a rope with a tension
of 45.0 N that makes an angle of 20.0 degrees to the horizontal. If the box started with a
speed of 3.00 m/s and ended with a speed of 5.00 m/s, what was the NET work done on the
box?
Answer:
Explanation:
Net work done on the box = increase in kinetic energy
= 1 / 2 x 10 ( 5² - 3² )
= 80 J .
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Answer:
number of Protons=16
number of Neutrons=16
number of electrons=32
Explanation:
Tip:-
Always the number of protons = the number of neutrons.
Add them and you will get the number of electrons.
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Which Period 3 element would you expect to have the highest electrical and
thermal conductivity?
A. Chlorine (CI)
B. Phosphorus (P)
C. Sulfur (S)
D. Sodium (Na)
Answer:
The correct option is D
Explanation:
Generally, thermal and electrical conductivity is affected by valence electrons in an atom. These valence electrons carry electric charges (or conduct heat as the case may be) throughout the atom. The fewer the valence electrons, the higher its conductivity - this is as a result of free movement within the atom. The higher the valence electrons, the lesser its conductivity and when the outermost electrons have completely filled the outermost shell, the atom would be an insulator as there won't be carriers of electric charges.
Hence, from the above, sodium would be expected to have the highest electrical and thermal conductivity because it has just one electron in it's outermost shell
Answer:D
Explanation: got it right
Lucy needs to lift a crate to a shelf 20 m high. She does 12,000 J of work on a machine to help her. The machine exerts a force of 500 N to lift the crate.
Answer:
83.34%.
Explanation:
Given that,
Lucy does 12,000 J of work on a machine to help her
The machine exerts a force of 500 N to lift the crate.
Height of the shelf = 20 m
We need to find the efficiency of the machine. The ratio of output work to the input work is called the efficiency of any machine. It is given by :
[tex]\eta=\dfrac{W_o}{W_i}\times 100\\\\=\dfrac{500\times 20}{12000}\\\\=83.34\%[/tex]
So, the efficiency of the machine is 83.34%.
Answer:
83%
Explanation:
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