Answer: 9 Kg
Explanation:
Force = Mass x Accelaration
18 = Mass x 2
Mass = 18/2
Mass = 9 Kg
the electrical interaction between the nucleus and the orbital electron is a force of
-
A) attraction
B) repulsion
Answer:
Attraction
Explanation:
Nucleus has a positive charge. Electron has a negative charge. Opposite charges attract and equal charges repel
The electrical interaction between the nucleus and the orbital electron is a force of attraction.
Electrons are negatively charged and are pulled pretty close to each other by their attraction to the positive charge of a nucleus. The electrons are attracted to the nucleus at the same time as electrons repel each other. The balance between attractive and repulsive forces results in shielding.The nucleus is positive and the electrons are negative, which obviously means they attract. However, electrons are organized into shells, and so as you move further out, you have more shells of electrons in the way of the nucleus, which repels the outermost electrons a little more.
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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.
Find the y-component of this
vector:
92.5 m
32.0°
Remember, angles are measured from
the +X axis.
Answer: 49 meters
Explanation:
The y-component of a vector, is the magnitude of the vector multiplied by the sine of the angle.
92.5*sin(32) = 49 meters
Beryllium has a charge of +2, and bromine has a charge of –1. Which is the best name for the ionic bond that forms between them? beryllium bromide beryllium bromine bromine berylliumide bromide berylliumide
Answer:
Beryllium bromide
Explanation:
There exists 2 elements in the question
Beryllium Be with valence of +2, and it's a metal
Bromine Br with a valence of -1, and is a non - metal.
Both of them combine together forming an ionic bond:
Be + Br(2) -> BeBr(2)
In naming the compound, we would say that since the first is a metal, beryllium, and the second being a halogen, bromine. We name it by calling the first name together with the last name and changing the last name of the non metal from -ine to -ide.
So we have, Beryllium Bromide.
Answer: A. Beryllium Bromide
Explanation:
Got it right on edge 2023
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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2) Which tricks do you use to reduce pressure in everyday activities?
Answer:
Explanation:
Increase activity and exercise more. ...
Lose weight if you're overweight. ...
Cut back on sugar and refined carbohydrates. ...
Eat more potassium and less sodium. ...
Eat less processed food.
What is Newton's 2nd law dealing with acceleration
Answer:
Newton's second law of motion pertains to the behavior of objects for which all existing forces are not balanced. The second law states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object. The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object.
Explanation:
Antonio (883 N) does a push-up lifting his body a total of 0.6 meters (down and back up). If this process generated 375 Watts of power, how long did it take her to complete the push-up?
Answer:
Time = 1.413 seconds.
Explanation:
Given the following data;
Force = 883N
Distance = 0.6m
Power = 375 Watts
To find the time;
First of all, we would find the work done by Antonio.
Workdone = force * distance
Workdone = 883 * 0.6
Workdone = 529.8 Joules.
Now, to find the time;
Time = workdone/power
Substituting into the equation, we have
Time = 529.8/375
Time = 1.413 seconds.
Therefore, it took her 1.413 seconds to complete the push-up.
Please help me on these 2 questions!! I'm counting on you guys
Answer:
b and you mom is cute so it's nice I'm here for points
Which of the following BEST represent a good plan for decreasing your BMI?
A.
measure your BMI; start a program that allows you to eat less and exercise more; reward yourself with your favorite dessert after reaching your goal
B.
measure your BMI; set goals; record your progress in a journal; when you reach a goal, give yourself a sensible reward
C.
plan a workout that gives your plenty of cardiovascular exercise; when your reach your weight loss goal, eat your favorite high-calorie food
D.
skip breakfast to lower your calorie intake until you reach your goal; reward yourself with a new toy
Answer:b
Explanation:
The Gulf Stream is an ocean current that runs from the southern tip of Florida up the eastern coast of the U.S. And ends in the North Atlantic. How would this Northern flowing stream affect the coast of Europe?
Answer:
The Northern flowing stream will affect the coast of Europe by making climate of Western Europe and Northern Europe to be warmer than other areas that are located around the same latitude and this is simply because of the North Atlantic Current
Explanation:
The Northern flowing stream will affect the coast of Europe because the North Atlantic current causes the Gulf stream to be split into two ( 2 ) and the Northern stream which is a warm stream crossing over to Northern Europe. The Gulf stream makes climate of Western Europe and Northern Europe to be warmer than other areas that are located around the same latitude and this is simply because of the North Atlantic Current
The velocity of a motor bike of mass 140 kg is increased to 40m/s from 20m/s in 2 seconds. Then the force required for this is?
Answer:
true blood season and answers the question of whether you are not the intended recipient you are not the intended recipient you are not the intended recipient
The temperature in a room is 56 degrees Celsius, what would the velocity of sound wave be as temperature?
Answer:
364.6 Hz
Explanation:
A ball is dropped from a height of 12.50 m. How many seconds does it
take for the ball to reach the ground?
Answer:
well it is at 12.50 meters in the air and the gravitational pull is 9.8 making the equation t=v/d making it .78 seconds i think
Explanation:
Which will ensure laboratory safety during the experiment? Check all that apply. using beaker tongs to handle the hot beaker reading the thermometer accurately checking the beaker for chips prior to heating on the hot plate using a beaker instead of an Erlenmeyer flask turning off the hot plate after use
Answer: • using beaker tongs to handle the hot beaker.
• checking the beaker for chips prior to heating on the hot plate.
• Turning off the hot plate after use
Explanation:
The options that will ensure laboratory safety during the experiment will be:
• using beaker tongs to handle the hot beaker.
• checking the beaker for chips prior to heating on the hot plate.
• Turning off the hot plate after use.
We should note that the beaker tongs are simply used in the holding of the beakers that have hot liquids in them. Also, it s vital for the hot plate to be turned off after its use so as to prevent accident.
Using beaker tongs to handle the hot beaker reading the thermometer accurately checking the beaker for chips prior to heating on the hot plate ensure laboratory safety throughout the experiment:
What is an experiment?An experiment is a technique used to prove or disprove a theory, or to test the efficiency or probability of something that has never been done before.
Experiments reveal cause-and-effect relationships by illustrating what happens when a specific component is changed.
The following options will ensure laboratory safety throughout the experiment:
1.Handling the heated beaker using beaker tongs.
2.Inspecting the beaker for chips before heating it on the hot plate.
3.After using the hot plate, turn it off.
Hence all the given options are correct.
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frequency of sound determines its _____ measured in _____.
amplitude: amplitude of sound wave determines its _____ measured in _____.
Answer:
Loudness of sound is determined by its amplitude.
Loudness of sound is determined by its amplitude.The intensity or loudness of a sound depends upon the extent to which the sounding body vibrates, i.e., the amplitude of vibration. A sound is louder as the amplitude of vibration is greater, and the intensity decreases as the distance from the source increases.
1.1.50 kg rock falls from the top of a 10.0 m high building and strikes the ground below. What is the force of the ground acting on the rock if it comes to a stop in 0.350 seconds?
force of the ground acting on the rock if it comes to a stop in 0.350 seconds. V = √2 (9.8) ... Calculate the impulse experienced by the 4.00 kg object represented in the graph below. ... A 200 kg rock is dropped from the top of a 30.0 m high building. ... 200 x 10 seconds, what was the force that the foot applied on the ball?
Answer:
200×10 idjjcfjcjrjcevdvrfb
If a wave is traveling at a certain speed and it's frequency is doubled,what happens to the wavelength of that water
Answer:
If the frequency is doubled the wavelength is only half as long.If you put your fingertip in a pool of water and repeatedly move it up and down,you will create circular water waves.
Hope this helps!!!
What does velocity mean in physics and what is it used for?
Answer:
velocity measures how fast something moves in a particular direction and is used for measuring speed
Explanation:
Squeezing due to differences in the gravitational force of the moon at different points on earth causes
Answer:
the most important effect of the gravitational force is the change in the tide.
Explanation:
The gravitational force between the Moon and the Earth is given by
F = G m M / r2
where m is the mass of the Moon, M the mass of the Earth, and r the distance between the two.
The magnitude that changes in this formula is the distance between the Moon and the Earth, due to the lunar rotation, at the points of maximum approach in the periods of high tide and in the periods of greater distance the tide is low.
It should be mentioned that the earth's crust is also affected, but its movement is much less than that of water, which is why in almost all cases it is taken as fixed.
Lately it has also been analyzed that the Earth-Moon structure creates greater stability in the rotation of the two bodies.
Consequently the most important effect of the gravitational force is the change in the tide.
The frequency of a sound wave corresponds to its
An arrow is fired at 5.20 m s−1 at an angle of 22.0° above the horizontal. Find the horizontal component of the initial velocity, expressing your answer in m s−1 to 2d.P.\
Answer:
[tex]4.82ms^{-1}[/tex]
Explanation:
We are given that
Initial velocity, u=5.20m/s
[tex]\theta=22^{\circ}[/tex]
We have to find the horizontal component of the initial velocity.
We know that
Horizontal component of velocity=[tex]ucos\theta[/tex]
Using the formula
Horizontal component of the initial velocity=[tex]5.2cos22^{\circ}[/tex]
Horizontal component of the initial velocity=[tex]5.2\times 0.9272[/tex]
Horizontal component of the initial velocity=[tex]4.82ms^{-1}[/tex]
Hence, the horizontal component of the initial velocity=[tex]4.82ms^{-1}[/tex]
which of theres is the correct unit for speed? a) m/s- meters per second b) j- joules c) n- newtons
Since the speed formula is = Distance / time
speed = distance /time
speed = metre/ seconds
speed = m/s
Answer:
a) m/s- meters per second
Explanation:
Recall that m/s (meters per second) is the official derived SI unit for speed. That is, it is length (meters) over time (second), hence m/s.
It can't be joules (J), since that is the SI unit for work & energy.
It also can't be newtons (N), since that is the SI unit for force.
Therefore, the correct answer is a) m/s- meters per second.
I hope this made sense to you, if not, feel free to let me know and I can try to provide further assistance.
PLEASE HELP ME WITH THIS. IT'S DUE IN 15 MINUTES
What is an accurate way to measure the speed of sound in air? Explain your answer.
Answer:
you can measure the speed of sound in the air by using "SPEED=DISTANCE÷TIME
Explanation:
the SPEED of the sound in metres per second, DIVIDE the DISTANCE in metres by the AVERAGE TIME in seconds.
*
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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30. A force is exerted on a box and an equal and opposite force is exerted by
the box. What explains this?
a conservation of energy
b Newton's first law of motion
c Newton's second law of motion
d Newton's third law of motion
Newtons third law of motion
Explanation:
According to Newtons third law of motion: Every action has an equal and opposite reaction.
A 6 cm object is 8 cm from a convex lens that has a focal length of 2.7 cm. The image is 4 cm from the lens.
The height of the image is
cm ______
Answer:
3cm
Explanation:
The height of the image will be "3 cm".
Convex lensAccording to the question,
Size of object, u₀ = 6 cm
Distance of object, u = 8 cm
Focal length, f = 2.7 cm
Distance of image, v = 4 cm
Let,
Height of image be "[tex]v_i[/tex]".
We know the formula,
→ Magnification, M = [tex]\frac{Distance \ of \ image}{Distance \ of \ object}[/tex]
By substituting the values, we get
= [tex]\frac{4}{8}[/tex]
= 0.5
hence,
The image's height be:
→ M = [tex]\frac{Height \ of \ image \ (v_i)}{Height \ of \ object \ (u_0)}[/tex]
0.5 = [tex]\frac{v_i}{6}[/tex]
By applying cross-multiplication,
[tex]v_i[/tex] = 0.5 × 6
= 3 cm
Thus the response above is correct.
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Which way do the players on the court rotate during a game? What happens if the players serve out of order?
Answer:
Explanation:
on volleyballit's clockwise and What Would Happen If Someone Served Out Of Order? If the wrong player on your team serves because it's not their turn, the point and the possession of the serve will go to your opponents.
You have 1.2kg of (AU)gold (that's quite a bit of money at $1839/ounce). Using a heat source you apply 3096 J to the gold and record the Temperature rise from 20C to 40C. What is the specific heat of (AU)Gold?
Answer:
129 J/Kg°C
Explanation:
Given :
Mass of gold, m = 1.2kg
Quantity of heat applied, Q = 3096 J
Temperature, t2 = 40°C
Temperature, t1 = 20°C
Change in temperature, dt = (40-20)°C = 20°C
Using the relation :
Q = mcdt
Where, C = specific heat capacity of gold
3096 = 1.2kg * C * 20°C
3096 J = 24kg°C * C
C = 3096 J / 24 kg°C
C = 129 J/Kg°C
A baseball is launched horizontally from a height of 1.8 m. The baseball travels 0.5 m before hitting the ground.
How fast is the baseball moving horizontally, rounded to the nearest hundredth? m/s
Answer:
2.7
Explanation:
should ya just add the 2
Answer:
2.7
Explanation:
edge 2021