b) What is work? Write down the types of work.
1 What is the main function of nucleic acids?
2 Forming much of the structure of cells
3 Providing a layer of insulation
4 Storing energy
5 Storing genetic information
Answer:
storing genetic information
The capitary action of water is caused the cohesion of water molecules to different types of molecules and the adhesion of water molecules with other water molecules true or false
During exercise, the amount of ____________ carried in the blood to the muscles increases. (3 points)
oxygen
carbon dioxide
energy
calories
Answer:
oxygen
Explanation:
ok buddy
5 health benefits of physical activity
Answer:
reduce your risk of a heart attack.
manage your weight better.
have a lower blood cholesterol level.
lower the risk of type 2 diabetes and some cancers.
have lower blood pressure.
have stronger bones, muscles and joints and lower risk of developing osteoporosis.
What is electricity and where does it come from?
Answer:
it is created power we use everyday
electricity is made of the flow of electrons.
but its made by a generated by a power plant bye electric generators
brainliest?
use your brain :)
Name any 2 physical quantities which have same dimensions.Can a quantity have unit but no dimensions?Explain
Answer:
uantities having units, but no dimensions : Plane angle,angular displacement, solid angle. These physical quantities possess units but they do not possess dimensional formulas.
Energy and work have the same dimensions force × distance.
Explanation:
I HOPE THIS WAS HELPFUL
A golfer pulls on the eighteenth green at a distance of 5.0m from the hole. The ball rolls straight. In the positive direction, but overshoots the hole by 1.2m. The golfer then putts back to the hole and sinks the putt for par. What is the displacement of the ball?
Answer:
Explanation:
The initial position of the ball = - 5 .0 m from the hole .
It is negative because , direction towards the hole is positive so direction from the hole will be negative .
Final position of the ball = 0 m from the hole .
Displacement of the ball = Final position - Initial position
= 0 - ( - 5 ) = 5 .0 m
Displacement = + 5 m
metals with low resistivity behave as_____
Answer:
At most temperatures, silver has lowest resistivity.
However, superconductors have zero resistivity, which is the lowest. Superconductors are real, they are primarily used in very powerful magnets (such as in CERN). Known superconductors require VERY low temperatures which require expensive technology.
There is ongoing research to find compounds that exhibit room temperature superconductivity. If (when?) one or more is found, major changes to electricity as we know it will result. Not only will we be able to make very powerful magnets (for use in very powerful motors, generators, etc.), but the power companies will be able to move electricity from the generator to the user without loss. Today typical power transmission losses are between 8% and 15%. There may also be important benefits to computer and processing capabilities.
Hope this helps! :D
Draw the net force arrow on the picture to the left.
force arrow on the picture to the left.
The net force is the hypotenuse of the triangle and the value of the net force is 14.14 N.
What is the net force?The net force is the force that has the same effect in magnitude and direction as two or more forces acting together. We know that force is a vector quantity thus it does have both magnitude and direction.
Since force is a vector, we need to look at the direction of the forces in order to find out what the direction of the net force would have to be. A close look at the image would show us that the net force is the hypotenuse of the triangle.
The value of the net force is;
R = √(10)^2 + (10)^2
R = 14.14 N
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Watching your mother bake bread, you learned that the dough of the bread rises because yeast acts on the sugar and releases gas. You wonder whether the amount of sugar used will affect the size of the bread. That is, if you add more sugar, the size of the bread will be larger. Your mother’s recipe calls for 60 grams of sugar to produce a loaf of bread about 1260 cm3 what is the problem
Answer:
The question is not complete, below is the completed question:
Watching your mother bake bread, you learned that the dough of the bread rises because yeast acts on the sugar and releases gas. You wonder whether the amount of sugar used will affect the size of the bread. That is, if you add more sugar, the size of the bread will be larger. Your mother’s recipe calls for 60 grams of sugar to produce a loaf of bread about 1260 cm3. What is the independent and dependent variables?
Answer:
independent variable: amount of sugar used
Dependent vairable: size of bread
Explanation:
In a scientific experiment, there are two main types of variables; independent and dependent variable:
Independent variable: This is the variable that is completely under the control and manipulation of the experimenter. The values of this variable can be varied at will, and the effect of the variation affects the dependent variable. In this example, the independent variable is the amount of sugar used, because the amount of sugar used is determined by the baker.
Dependent variable: The dependent variable is the variable that changes as a result of the manipulation of the independent variable. It is not directly under the manipulation of the experimenter, and it is the variable that the experiment seeks to study. In this example, the size of the bread is the dependent variable because it depends on the amount of sugar used.
What is the name of the great white whale?
Answer:
moby di*k
Explanation:
Maddie and Juan's were given to task of trying to cook a s more using the Sun! They built this oven using a box and aluminum foil After setting up the device, they put four s'mores in the box. Ten minutes later the s'mores were hot and ready to eat. Describe the energy transtormation that took place in the students oven. 4) A radiant energy to heat energy B) radiant energy to light energy reflected energy to heat energy D) bght energy to mechanital energy
An eraser is thrown upward with an initial velocity of 5.0 m/s. The eraser's velocity after 7.0 seconds is ____ m/s.
Answer: -64
Given parameters:
Initial velocity of eraser = 5.0m/s
Time = 7.0s
Unknown:
Final velocity = ?
Solution:
Since we have been given the initial velocity and duration of the throw, we can apply the appropriate motion equation to solve this problem.
V = U - 2gt
where V is the final velocity
U is the initial velocity
g is the acceleration due to gravity = 9.8m/s²
t is the time taken
V = U - gt
V = 5 - (9.8)(7)
V = -63.6 or -64m/s
The velocity is -64m/s
As the eraser is thrown upward, its velocity after 7.0 seconds is approximately -64m/s.
Given the data in the question;
Initial velocity of the eraser; [tex]u = 5.0m/s[/tex]
Final velocity; [tex]v = \ ?[/tex]
Time; [tex]t = 7.0s[/tex]
To determine the eraser's velocity after 7.0 seconds, we us the First Equation of Motion:
[tex]v = u + at[/tex]
Where v is the final velocity, u is the initial velocity, t is the time and a is the acceleration. Since the eraser was thrown upward, acceleration due to gravity becomes ( negative acceleration ) [tex]g = -9.8m/s^2[/tex]
Hence, the equation becomes
[tex]v = u - gt[/tex]
We substitute in our values and solve for "v"
[tex]v = 5.0m/s - ( 9.8m/s^2 \ *\ 7.0s )\\\\v = 5.0m/s - 68.6m/s\\\\v = -63.6m/s\\\\v = -64m/s[/tex]
Therefore, as the eraser is thrown upward, its velocity after 7.0 seconds is approximately -64m/s.
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what is the name given to the rate of flow of electric charge
the answer should be and electric current
The rate of flow of electric charge is Electric Current.
What is Electric Current?
The flow of the electricity in a electrical circuit by calculating the amount of electricity flows in the circuit is known as Electric current. The Electric current can be referred by the symbol 'I'. The unit of electric current is Ampere (A).
Some of the characteristics of Electric current are:
If we get the higher or larger value in Ampere then we can confirm that the flow of electricity is more or large.The electricity produced is the flow of electrons.The work done that happened with the moving of electrons can be said to be electrical energy.The Electric current can be described by the formula as,
I = V/R ( Ampere)
I - Current (Unit is Ampere)
V- Voltage (Unit is volts)
R- Resistance. (Unit is ohm).
Thus, Electric current is the rate of flow of electric charge.
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Say you throw a ball straight up into the air and catch it again. The ball reaches a height of 5 m up from your hand before it falls back down and you catch it. The ball is in flight for 2 seconds of time. Determine the ball’s... average velocity average speed
Explanation:
Given that the heigth up is 5m
then the
distance up = 5m
distance down= 5m
time taken up= 1sec
time taken down= 1sec
average speed= (5+5)/1+1= 10/2= 5m/s
hence the speed up = 5m/s
speed down = 5m/s
average voelocity= 5+5/2 = 10/2= 5m/s
what we call the state in a human body if cerebrum is not functioning well
What is the mass of a person who weighs 500 N?
Answer:
51 kg
Explanation:
Answer:
51kg
Explanation:
So his mass is Weight/gravity=500 N / 9.8 m/s^2 = 51 kg.
This is a short answer question, please answer in full sentences.
Apply Newton’s third law of motion to the action of serving a volleyball.
Answer:
when we hit the volleyball. the ball goes up comes down
it comes down as it is forced by gravity
the force in which ball comes back is Newton 3 law
A block of mass 3.5 kg displaces 1000 cm ^3 of water when fully immersed inside. The upthrust on body will be what.
Given :
Mass of block = 3.5 kgWeight of Block = 3.5 kgfVolume of water displaced when body is fully immersed = 1000 cm³Answer:
For calculating Upthrust on block we will have to first find out Volume of block :
↪Volume of block = Volume of water displaced
↪ Volume of block = 1000 cm³ = 0.001 m³
________________Now, we will calculate the Upthrust on block:
↪ Upthrust on block = Volume of block * Density of water * g
↪ Upthrust on block = 0.001 * 1000 * g
↪ Upthrust on block = 1 kgf
An ant climbs to the very end of the second hand on a wall-mounted clock at exactly 9:15:00. The second hand is 13.5 cm long. When the time is exactly 9:17:30, (a) what distance did the ant travel? (b) What is the ant‟s displacement at this time? (c) What was the ant‟s average speed? (d) What is the ant‟s average velocity at this time? (e) At what time would the ant have traveled a distance of 100. M (give your answer to the nearest second).
Answer:
Explanation:
a) The second arm measures the minutes. The difference between 9:17:30 and 9:15:00 is 2 minutes 30 seconds. This means the second arm would have revolved 2.5 times.
The circumference = 2πr= 2π(13.5 cm) = 84.823 cm
Distance = 2.5 × 84.823 cm = 212 cm = 2.12 m
b) Displacement of an object is the shortest distance between the initial and final point. Since the second arm revolves 2 and half times, we use only the half times (a semicircle)
Displacement for semicircle = 2r = 2(13.5) = 27 cm
c) Average speed = distance / time
time = 2 minutes 30 seconds = 150 seconds
Average speed = 212 cm / 150 s = 1.41 cm/s
d) Average velocity = displacement / time = 27 cm / 150 s = 0.18 cm/s
e) number of revolutions = 100 m / circumference = 100 m / 0.848 m = 117.92
but 1 revolution = 1 minute
117.92 revolution = 117 minutes 55 seconds = 1 hour 57 minutes 55 seconds
Hence the time would be: 11:12:55
What is is
optical instrument
Answer:
A simple microscope is an optical instrument we use for the magnification of small object to get a clear image or vision.It is a convex lens having a short focal length.
Answer:
Optical instruments is an instrument which is used in lens to make the image of an image
20m/s into km/hr20 metre
Answer:
72 [km/h]
Explanation:
To solve this conversion we need to perform a dimensional analysis, in a simple way.
[tex]20\frac{m}{s} *1\frac{km}{1000m}*60\frac{s}{1min}*60\frac{min}{1hr}\\ = 72\frac{km}{h}[/tex]
Who yall think gonna win Seahawks or Vikings? Seahawks all the way
Answer:
Seahawks
Explanation:
THEY ARE THE BEST TEAM!!!
Answer:
seahawks
Explanation:
yes they r gud
Questlon 3 of 5 What statement best describes what a circle graph shows? O A. Data as proportions of a whole B. The relationship between two variables OC. A frequency distribution D. The average of a data set
Answer:
it would be a
Explanation:
Solve the following exercises and discuss your results with your classmates and teacher.
1. The initial, final position and displacement of a particle are:
a) xi = 20m, xf = 6m How much did it move?
b) xi = 10km, Δx = –15km, what is the final position of the particle?
2. An athlete jogs from one end of a straight 80m track to the other:
a) What is your one-way displacement?
b) What is your return displacement? (taking negative direction back)
c) What is its displacement in the total trot?
d) What is your one-way distance?
e) What is your total trot distance?
3. In a circular skating lane whose radius is 96 m, the skater begins to move from point A
to point B which is at the opposite end. Consider the path to be a semicircle
a) What is its displacement?
b) What is the distance traveled?
Answer:
5379393 is the answer of the question
Explanation:
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In a softball game, a batter hits the ball at the velocity and angle shown
below. What is the maximum range of the ball?
Velocity = 32m/s
50°
Range
A. 95.1 m
B. 102.9 m
C. 80.0 m
7
D. 113.5 m
Your science class is going to play a game of tug-of-war and you need to divide up the teams. There are 11 people participating. If you want equal teams, how would you decide who is on which side and why? Use what you have learned about Newton's Laws of motions to explain.
Answer:
5
Explanation:
write one general properties of non contact force
Answer: Gravitational force between the two masses does not depend on the medium separating two masses.
PLEASE HELP!!!
What is the sum of all forces that act upon an object called?
a
Net force
b
Balanced force
c
Unbalanced force
d
Gravitational force
Answer:
net force
Explanation:
The net force is the vector sum of all the forces that act upon an object. That is to say, the net force is the sum of all the forces, taking into account the fact that a force is a vector and two forces of equal magnitude and opposite direction will cancel each other out.
Answer:
a
Explanation: