Answer: An object is spun around in circular motion such that its period is 12s. is the acceleration of an object that has a velocity of 25 m/s and is moving in a circle of radius.
Explanation: I hoped that helped!
Which option is an example of a magnet being used to store information?
A. The magnet on a strip used to store tools
B. The magnetic strip on a credit card
C. The needle on a compass
D. The clasp on a necklace
Answer:
B
Explanation:
The magnet strip on a credit card is an example of a magnet which is being used to store information. Thus, the correct option is B.
How does magnet used to store information?Magnetic storage or magnetic recording is the storage of data on a magnetized medium or a magnet. Magnetic storage uses different patterns of magnetization in a magnetizable material to store the data and is a form of the non-volatile memory source. The information in the magnet is accessed using one or more read or write heads and files.
Some examples of magnetic storage media include the floppy disks, magnetic tape, and magnetic stripes that are present on the credit cards.
Therefore, the correct option is B.
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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
If the half-life of a 2.0 gram sample of a radionuclide is 15 hours, then the half-life of a 1.0 gram sample of the same radionuclide would be
7.5 hours or 450 minutes. 15/2=7.5
For the 1.0 gram sample of the same radionuclide, the required half life will be of 7.5 hours.
Given data:
The amount of sample at initial is, a = 2.0 g.
The half-life for 2.0 g sample is, [tex]t_{1/2}=15 \;\rm hr[/tex].
In the given problem, it is a simple calculation but the concept of half life is used . The half life is defined as the a time interval required for one-half of nucleus of sample to undergo complete decay.
In the given problem,
2.0 g of sample = 15 hours
1.0 g of sample = 15/2 hours
= 7.5 hours
Thus, we can conclude that for the 1.0 gram sample of the same radionuclide, the required half life will be of 7.5 hours.
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Can someone define 'work' for me please? I looked it up but there are a lot of different answers.
Answer:
Work- Activity involving mental or physical effort done in order to achieve a purpose or result.
Explanation:
This was the first definition from the dictionary on google :)
The Young’s modulus for steel is 2.0 x 10 11 N/m 2 and the interatomic spacing is 2.6A . Find the increase in inter atomic spacing, when a steel wire is subjected to a stress of 5 x 10 9 N/m
Answer:
Increase in Atomic Spacing = 6.5 x 10⁻¹² m = 6.5 pm
Explanation:
The young's modulus of a material is given by the following formula:
Young's Modulus = Stress/Strain
2 x 10¹¹ N/m² = (5 x 10⁹ N/m²)/Strain
Strain = (5 x 10⁹ N/m²)/(2 x 10¹¹ N/m²)
Strain = 0.025
Now, the formula for the strain in the steel wire can be written in terms of atomic spacing as follows:
Strain = Increase in Atomic Spacing/Initial Atomic Spacing
0.025 = Increase in Atomic Spacing/2.6 °A
Increase in Atomic Spacing = (0.025)(2.6 x 10⁻¹⁰ m)
Increase in Atomic Spacing = 6.5 x 10⁻¹² m = 6.5 pm
Npk fertilizer is called a complete fertilizer,why?
Answer:
Complete fertilizers or balanced fertilizers are so-called because of their amounts of nitrogen, phosphorus, and potassium. ... If your soil already had an excess of one of the three nutrients in NPK, you could actually be harming some of your plants by adding more of it to the soil
Explanation:
What sport was inspired by basketball adapted for older adults who were still interested in being physically active
Answer:
shes right, I just took the test
In boiling water, water molecules move apart and escape in the form of water vapor. The process is called_
Answer:
Evaporation
Explanation:
Evaporation occurs when a liquid changes to a gas. During evaporation, molecules gain enough thermal energy to escape from the liquid surface into the air as water vapor. Water-vapor molecules spread out, breaking completely free of each other, and then disperse or spread out among the other gas molecules in the air.
Hope this helps stay safe
love anyla..
Answer:
evarporation that is the answer i think because molecules of liqid are sperated thats why when in boiling water The molecules move apart and escape in vapour even i don't think it is the right answer
If a girl runs 51 m East in 17 seconds what is her velocity?
Answer:
Yea what he said I think
Explanation:
14. Determine the kinetic energy of a 1000-kg roller coaster car that is moving with a speed of
40.0 m/s.
Answer:
200,000 JExplanation:
The kinetic energy of an object can be found by using the formula
[tex]k = \frac{1}{2} m {v}^{2} \\ [/tex]
m is the mass
v is the velocity
From the question we have
[tex]k = \frac{1}{2} \times 1000 \times {40}^{2} \\ = 500 \times 400[/tex]
We have the final answer as
200,000 JHope this helps you
Hello!!
Sorry to contradict the before answer, but he's wrong.
The formula is correct:
k = 1/2 * mv²
If we replace it with our data:
k = 1/2 * (1000 kg) (40 m/s)²
Here is the problem, 40^2 is = 1600, so the result is wrong:
k = 500 Kg * 1600 m²/s²
And if we resolve it:
k = 800 000 Joules
Then the kinetic energy of the roller coaster car is 800 000 Joules.
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
what is a Harmful mutation
define volume with example
Answer:
The volume of an object is a measure of the amount of space occupied by that object
Explanation:
Answer: A student might use a graduated cylinder to measure volume of a chemical solution in milliliters
Explanation:
Volume is the quantity of three-dimensional space enclosed by a closed surface,an often quantified numerically using the SI derived unit, the cubic metre.
3. The earth exerts a gravitational force of 530 N on an object. What is the mass
of the object in kilograms?
===============================================
The force is F = 530 newtons.
The acceleration of gravity on earth is approximately 9.8 m/s^2, so a = 9.8
Use Newton's second law to find m
F = m*a
530 = m*9.8
9.8m = 530
m = 530/9.8
m = 54.0816326530612
m = 54
The mass is about 54 kg.
Answer:
around 53-54
Explanation:
the gravitational pull is almost 10 (9.807 m/s²) so as long as the numbers are not that big its easy and mostly accurate to divide by 10
A force of 16 N to the west is applied to each object below. Which object will
undergo the greatest change in momentum?
A. A 41 kg object that is moving east at 5 m/s
B. A 41 kg object that is moving east at 10 m/s
C. A 44 kg object that is moving east at 10 m/s
D. A 44 kg object that is moving east at 5 m/s
41kg object that is moving east at 5 m s
Answer:
41kg object that is moving east at 5 m s
Explanation:
Determine the acceleration of a boat with a final speed of 120 m/s after 30 seconds.
Answer:
ehehehshehehehhehesh
Explanation:
ehehehehheheheeheh
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.
15 points :) plz hurry tho
Answer:
The rock in Diagram A seems to not have that much stress on it, the one in B seems to be pushing itself together, the one in C seems to be pulling itself apart and the one in D seems to be sliding past each other. A has not had any stress as its staying still while B seems to be a tectonic plate where subduction is occurring, in rock C it also seems to be a tectonic plate where it is a Convergent Boundary, rock C seems to be a Divergent Boundary and D seems to be a Transform Boundary.
Explanation:
FLVS Science 7
Can you give be brainliest please? It took me a while to think of this answer.
How much does a 200 kg car weigh?
Answer:
42,000 lbs
Explanation:
100 kg is 210 lbs.
200 x 210 lbs =
42,000 lbs
The weight of the car is product of its mass and acceleration due to gravity of earth. Hence, the weight of the 200 kg car is 1960 N.
What is acceleration due to gravity ?The gravitational force of an object is the force by which attracts other objects into its center of mass. Earth attracts every objects into its center and that is why we are all standing on the ground.
The weight we experience on earth is due to this gravitational force and it decreases when we move far from earth. The acceleration due to gravity is the acceleration by which an object accelerates downwards due to earth's gravity (g).
Weight of an object = mass × g
g for earth = 9.8 m/s²
mass of the car = 200 Kg.
then, weight = 200 kg × 9.8 m/s² = 1960 N.
Therefore, the weight of the car is 1960 N.
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simplify log√8÷log√8
Answer:
The answer is 1.
Explanation:
Caregivers should begin reading to children:
When they are babies.
When they can talk.
When they show an interest.
When they are two.
When they are preschoolers.
Answer:
When they are babies. to get them familar with it
Explanation:
Pls choose brainliest.
Answer:
When they are babies
Explanation:
Because they could hear the words and laern them.
A supertanker ( = 1.70 × 108 kg) is moving with a constant velocity. Its engines generate a forward thrust of 7.40 × 105 N. Determine (a) the magnitude of the resistive force exerted on the tanker by the water and (b) the magnitude of the upward buoyant force exerted on the tanker by the water.
I need work shown thank u
Answer:
(a) 0 (b) [tex]F=1.67\times 10^9\ N[/tex]
Explanation:
Given that,
Mass of a supertanker, [tex]m=1.7\times 10^8\ kg[/tex]
The engine of a generate a forward thrust of, [tex]F=7.4\times 10^5\ N[/tex]
(a) As the supertanker is moving with a constant velocity. We need to find the magnitude of the resistive force exerted on the tanker by the water. It is given by :
F = ma, a is the acceleration
For constant velocity, a = 0
So, F = 0
(b) The magnitude of the upward buoyant force exerted on the tanker by the water is equal to the weight of the ship.
F = mg
[tex]F=1.7\times 10^8\times 9.8\\\\F=1.67\times 10^9\ N[/tex]
Hence, this is the required solution.
This contributes most directly to which short-term human-induced environmental change?
habitat destruction
eutrophication
global warming
wildlife hazard
Answer:
Global warming
Explanation:
Global warming is caused when co2 gases cause the earth to heat up and cause the environment to change
Answer:The answer would be C
Explanation:
Got it right on Edge. Please mark me brainleast
how could we develop space travel?
What is the velocity of a 0.06
kg ball moving with 75 J of energy?
Answer:
The ball moves at 50 m/s
Explanation:
Kinetic Energy
Is the energy that it possesses an object of mass m due to its motion at speed v. The kinetic energy is calculated as follows:
[tex]\displaystyle K=\frac{1}{2}m\cdot v^2[/tex]
If we know the value of the kinetic energy and need to calculate the speed, we can solve it for v:
[tex]\displaystyle v=\sqrt{\frac{2K}{m}}[/tex]
Since the ball has a mass of m=0.06 kg and moves with a kinetic energy of K=75 Joule:
[tex]\displaystyle v=\sqrt{\frac{2\cdot 75}{0.06}}[/tex]
[tex]\displaystyle v=\sqrt{\frac{150}{0.06}}[/tex]
[tex]\displaystyle v=\sqrt{2500}[/tex]
v=50 m/s
The ball moves at 50 m/s
Answer:50m/s
Explanation:divide
SUPER EASY!!!! WILL GIVE BRAINLIEST
How does a barometer work in measuring air pressure?
a.) A barometer has mercury in a dish. Air pressure pushes down on the mercury and forces it up into a glass tube. Thus, the higher the mercury rises in the tube, the higher the air pressure.
b.) A barometer contains fluid that expands or contracts based on the pressure. At a higher pressure, the fluid expands and rises in the tube.
c.) Barometers measure temperature, not pressure.
d.) A barometer contains a fluid that expands or contracts based on the pressure. At a higher pressure, the fluid contracts and lowers in the tube.
Answer:
A
Explanation:
don't mind that other guy... that was so rude the answer's A
you must be panicking lol last day of school today!
Answer:
a.) A barometer has mercury in a dish. Air pressure pushes down on the mercury and forces it up into a glass tube. Thus, the higher the mercury rises in the tube, the higher the air pressure.
Explanation
i have it on my test
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.
. A car going 50 m/s accelerates to pass a truck. Five seconds later the car is going 80m/s. Calculate the acceleration of the car.
god dang every one is dead rn on brainly
Answer:
not me, im alive haha
Explanation:
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.