Answer:
18joules
Explanation:
1/2 of 4=2
2 multiply by 9= 18 joules
what is a Harmful mutation
Come up with your own team sports game and make your own rules and regulation.
SO my sports name would be called " Basvollball" It's where you have to hit in a volleyball into a basketball hoop, of course, the time is the same as football with increments of 5 minutes for junior high and 7 minutes for high school with halftime. Also, the ball can never touch the ground and if the ball ever hits the floor its the other's team ball. To decide which team gets the ball, a coin flip will decide it. For the point system, it depends on how far the ball is hit from so it's like basketball from 3 pointers to 2 points inside the line. If the team ever reaches 30 points without the other team scoring, the team who's winning will automatically win after the time runs out in that period or quarter. You can use every body part, as long as, the ball doesn't touch the floor, and you can only use your body to push someone, no pushing with hands or arms. You can play this sport indoors or outside whether the team has a field available. There's also a maximum of 14 players on the field, so 7 players on each team.
GIVING BRAINLY, FOLLOW AND STARS, HELP!
When a solid object absorbs infrared rays, what happens to the particles
in that object?
Answer:
All objects emit and absorb infrared radiation. The hotter an object is the more energy it radiates per second. Infrared radiation can travel through a vacuum. When infrared radiation hits an object some of the energy is absorbed, making the objects temperature increase, and some is reflected.
Explanation:
Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional questions. Free Weights and Machines What are some things to consider when deciding to use free weights or machine weights?
Machine weights are safer when used correctly, but free weights can be dropped and cause injury. These are safety considerations to keep in mind whether using free weights or machine weights. But because they aren't big, complicated machinery, free weights are less expensive.
What are free weights or machine weights?Resistance machines and free weights are very different from one another in terms of how they work and the results they can create.
Machines are set in place and can only move in a few directions, whereas free weights can be moved in whatever direction the user selects. This is the main distinction between machines and free weights. Free weights require you to utilize more stabilizing muscles to control them, whereas resistance machines help you by stabilizing you while you move.
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GIVING BRAINLIEST TO THE RIGHT ANSWER examine the information for the two samples described in the chart. How are zinc and sodium alike?
A. They have the same hardness at room temperature.
B. They are both dolids at room temperature.
C. They have the same color.
D. They have the same boiling point.
If a girl runs 51 m East in 17 seconds what is her velocity?
Answer:
Yea what he said I think
Explanation:
what allows for movement
Choose the correct answer:
-excretory
-immune/hymophatic
-integumentary
-muscular
Is better to run or walk when it is raining?
Answer:
run
Explanation:
run - less wet
walking - more wet
While a dog runs forward, its
owner pulls back with a 22.4 N
force at a 115º direction, doing
-42.3 J of work. How far did the
dog move?
(Unit = m)
HELP ME
Answer:
d = 4.47 [m]
Explanation:
To solve this problem we must make a free body diagram, where we can see the direction of the force acting with the appropriate angles. In the attached image we can see the free body diagram mentioned.
So in the image, we can see an angle of 65° with respect to the horizontal, therefore we can calculate the horizontal component of the force.
Fx = 22.4*cos (65)
Fx = - 9.46 [N] (it's negative because the force is pointing in the negative direction).
We can obtain the same result using 115° as the angle.
Fx = 22.4*cos (115)
Fx = 9.46 [N]
Now we know that work is defined as the product of the force by the distance, therefore we have.
Note: Always the work must be calculated with the force parallel
to the movement
W = F*d
Where:
W = work = 42.3 [J] (units of joules)
F = force parallel to the movement = 9.46 [N]
d = distance [m]
d = W/F
d = 42.3/9.46
d = 4.47 [m]
Answer:
Explanation:
the person on top of me is right it’s 4.47
A tablecloth can be pulled out from underneath a fully set table without breaking plates or glassware. The reason is that the objects follow Newton's:
Answer:
newtons law of force
newtons law of force explains that something may or can or canot move depending on the objexts mass.
Children are ready for more complex storybooks:
Around one.
Around two.
Around two and a half to three years old.
Around three.
Around four years old.
Answer:
4
Explanation:
Because that is when they're mind learns how to read
This is a lab for science can you help with punctuation errors? Also where it says figures I have pictures :) (I am in 7th grade btw so no hate)
Leaf lab
Purpose: Find out if the leaf area of a given tree is bigger on the North or the Southside. Learn more advanced statistical analysis.
Research: To find the area of an irregular shape it’s whole + part ½ which is whole plus part divided by 2. The shape of the leaf will be traced. They are affected by the Earth's tilt and the sun because we are in the North Hemisphere.
Figure 1 is an example of the Earth’s tilt and how the sun gives a certain amount of heat to different parts of the Earth.
The south gets more sun it’s because the leaves burn while the north leaves get less sun. The north leaves are thinner but bigger in area than the leaves that get a lot of suns. This makes them smaller or bigger because one side might get more sun which makes north leaves bigger.
Hypothesis: The leaves on the Northside are bigger.
Procedure:
1. Collect 35 leaves from the Northside and 25 leaves from the Southside.
2. A tree that is not in shade.
3. Press the leaves flat.
4. Trace the leaves onto graph paper using both sides of the page keeping North and South separate.
5.Count whole (w) and partial squares (p) and calculate the area of each leaf in squares 6. with the equation A= W+ ½ P.
Figure 2 is an example of the equation A= W+ ½ P. There are 4 whole´s and 8 parts so the area is 8 inches squared because 4+ ½ 8= 8.
7. Create a north and South leaf data table.
8. Discard leaves afterward.
9. Put the leaf area in order from smallest to greatest in each table.
10. Find the mean, median, mode of the 2 data sets as well as the entire range of 50 leaf data sets.
11.Create a histogram
Use the range to find the size of 7 bins. USe the nearest whole number
Sort leaves
Count leaves and creates a chart
12.Create histograms of individual data using Microsoft Excel or google docs
5. Results: The north's side leaves are bigger than the south side by a few a lot,
6. Conclusion: It was a warm sunny day and windy. The experimenter gathered 25 leaves from the North and South sides with all different sizes and colors. The hypothesis was supported based on the data collected. One reason why it was supported was that the North overall average was greater than the South. The Northside leaves are greater is that it is proven by facts. If someone compared a random south leave to a random north leaf, most times the North would be bigger because the probability of getting a big leaf is higher for North rather than South. The second piece of evidence from my data is that the South bin had more leaves in smaller bins while the North bin had an equal amount of leaves in the high and low bins. The third piece of evidence is that the Northside leaves had a bigger average than the South leaves. Also, the Southside had the smallest leaf while the Northside had the biggest leaf. The entire group also supported this.
7. Errors and ways to improve: Try to get different trees and instead of picking a few leaves in a certain area in the north and south, pick random ones. Also, gather more and different leaves. Different weather conditions could affect the leaves.
Figure 3, is the north bin where most of the leaves are bigger.
Figure 4, the south bin where most of the leaves are smaller.
Figure 5, the class north bin where some most leaves are small but some are big.
Figure 6, the class south bin where mostly all of the leaves are small.
Figure 7 is the tree used to pick leaves off.
Answer:
First of all you should give more then 5 points for this.And the errors are you should add a space between all of the steps and info of the lab. And read everything over again and where you take a breath at or if you stop add a coma or a period.
Car 1 of mass m1 is waiting at a traffic light.
Car 1 is struck from behind by Car 2 of mass m2.
The two cars stick together after the collision.
Car 2 was traveling at v2i = 30.0 m/s before the collision.
What is the initial kinetic energy, in [J], of car 1, if m1= 2500kg?
Answer: KE= 1/2 m v^2
KE= 1/2 2500 (0)^2
KE= 0
Explanation: since initial velocity is 0, the KE is 0.
The initial kinetic energy, in [J], of car 1 is 0.
KE= 1/2 m v^2
KE= 1/2 2500 (0)^2
KE= 0
What is kinetic energy?Kinetic energy is a form of energy that an object or a particle has by means of reason of its movement. If paintings, which transfer strength, are carried out on an object via making use of an internet pressure, the object hastens and thereby gains kinetic energy.
What's the initial and very last kinetic strength?The kinetic strength of an object depends on its velocity. To trade its pace, one must exert pressure on it. It turns out there's a connection between the pressure one applies to an object and the resulting change in its kinetic electricity: KE(very last) - KE(initial) = (force) (distance)
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Explain how to identify a starting position on a line.
Answer: You can easily find out the beginning point of the line by using dot representation. When it comes to position vector, it expresses the exact position of certain object from the starting point of the coordinate system. The vector is a straight line that has a certain end which is fixed to its body.
brainliest please :)
Answer:
We can easily find out the beginning point of the line by using dot representation. When it comes to the position vector, it expresses the exact position of a certain object from the starting point of the coordinate system. The vector is a straight line that has a certain end that is fixed to its body.