How To:
How do you add two vectors?
To add or subtract two vectors, add or subtract the corresponding components. Let →u=⟨u1,u2⟩ and →v=⟨v1,v2⟩ be two vectors. The sum of two or more vectors is called the resultant. The resultant of two vectors can be found using either the parallelogram method or the triangle method .
help pls help pls help pls help pls help pls help pls
Answer: Its way to small can you make it bigger so i can answer.
Explanation:
Conservation of Momentum
Hi there!
This collision is an example of an inelastic collision since kinetic energy is lost from the collision.
We can represent this using the conservation of momentum formula:
m1v1 + m2v1 = m1vf + m2vf
Where:
m1 = blue ball
m2 = green ball
We know that the final velocity of the blue ball is 0, so:
m1v1 + m2v1 = m2vf
Rearrange to solve for the speed of the green ball:
(m1v1 + m2v1)/m2 = vf
Plug in given values:
((0.15 · 3) + (0.15 · 2)) / 0.15 = 5 m/s
The number of protons in an atom is known as its
Answer:
Atomic number...
Explanation:
The number of protons is the same as the number of electrons. The Atomic mass is the number of both the neutrons and number of protons.
Please mark BRAINLIEST.
How does Newton’s first law apply to roller coasters or other amusement park rides? Use inertia in your response. Look at page 417
Answer:
Below
Explanation:
Here is what newton's first law states :
" An object will remain in straight line motion due to inertia unless acted on by an external force"
If you've ever been on a roller coaster you would know that when you go over the top of the roller coaster you feel lighter or feel like you are being lifted out of your seat. This is due to the effect of interia! Because the roller coaster car is a mass, it wants to continue in the direction it is traveling. If the roller coaster is going up the hill, the acceleration of the coaster wants to keep pushing you up. However, when the coaster goes over the hill, the force of gravity is pulling you down. The track forces the coaster to go down, and gravity is the force that is pulling it down. This is the force that changes the object's motion.
Hope this helps!
NEED HELP!!!! 10 POINTS!!!!
Marina comes from a family with a lot of heart disease. She knows that she will have to go out of her way to make sure that her heart stays strong and healthy. What would be the BEST exercise to achieve this goal?
A.
yoga
B.
bowling
C.
swimming
D.
weightlifting
PLEASE NO LINKS
Answer:
yoga
Explanation:
Yoga would be the best exercise to achieve this goal, therefore the correct answer is option A.
What is exercise?Exercise is any activity that utilizes the physical movements of the body that improves a people's health, endurance, and wellbeing while lowering their chance of contracting illnesses. It enables the person to keep their body weight in a healthy weight range.
As given in the problem statement Marina comes from a family with a lot of heart disease. She knows that she will have to go out of her way to make sure that her heart stays strong and healthy.
In a different study, patients with heart failure who completed an eight-week yoga practice demonstrated improvements in their level of well-being and ability to exercise. Additionally, they had reduced blood sugars of inflammation-related indicators, which is linked to cardiovascular disease.
Thus, the appropriate answer for the given problem is option A.
To learn more about exercise here, refer to the link;
brainly.com/question/22616385
#SPJ2
How does the motor neuron help when dribbling a basketball?
Answer: Motor neurons of the spinal cord are part of the central nervous system (CNS) and connect to muscles, glands and organs throughout the body. These neurons transmit impulses from the spinal cord to skeletal and smooth muscles (such as those in your stomach), and so directly control all of our muscle movements. so they are resposnible for giving the message to your muscles to move your hand to dribble the ball.
Explanation:
PLEASE HELP!!!!
What is the measure of The gravitational force on an object?
weight and mass.
Explanation:
Weight and Mass Mass is a measure of the amount of matter in an object; weight is a measure of the gravitational force exerted on an object. The force of gravity on a person or object at the surface of a planet is known as weight.
Answer:
It's the objects weight
Explanation:
A lighter object will fall slower than a heavier object
sound travels at a speed of 330 m per second how long does it take the sound of thunder to travel 1485m
Given : Sound travels at a speed of 330m/sec how long does it take the sound of thunder to travel 1485m
Solution : According to the question, here we are given that the speed of sound is 330m/sec and distance travelled is 1485m. So, time needs to be find out. For this we need to use a specific formula.
Time = Distance/Speed
Time = 1485/330 Time = 450 secHenceforth, time taken by the sound is 450 sec
Pls i need help :((
Answer:
a)200 mph
b)80 mph
c)-40 mph
d)97 mph
e)56 mph
(note: i rounded the answer for d, it was a repeating decimal)
Explanation:
a) 3s-0s=3s 600m-0m=600m 600m/3s=200m/s
and it is the same for the rest. Use the explanation for A as a example.
So you take the final variable or speed and subtract it by the starting, then divide that by the time elapsed. Hope this helped!
what are five examples of things melting?
ice cube to water, butter in pan, plastic when burned, candles, popsicles
Q.6 Explain conceot of magnetization
Answer:
Magnetization is the density of magnetic dipole moments that are induced in a magnetic material when it is placed near a magnet. ... Magnetization is also known as magnet polarization.
Which statement about the universality of gravity is untrue?
Answer: The gravitational force between two objects depends only on their masses.
Explanation:
When dealing with the force of gravity between two objects, there are only two things that are important – mass, and distance. The force of gravity depends directly upon the masses of the two objects, and inversely on the square of the distance between them.
Therefore, gravity relies on mass and distance, not just mass.
heyyyyyyyyyyyyyyyypt2
What is the age of a meteorite if potassium-40 decayed from 80 g to 10 g? The half-life of potassium-40 is 1.3 billion years.
Answer:
10 / 80 amount of potassium-40 remaining
1/8 = 1/2 * 1/2 * 1/2 = 3 half-lives
3 half-lives * 1.3E9 yrs / half-life = 3.9E9 yrrs
After 3.9 billion years the 80 g will have decayed to 10 g
Answer:
3.9 billion years
Explanation:
i took test
Krebs Cycle experiment: if you want to increase the rate of the succinate forming fumarate, what could you do to the experiment?
To increase the rate of the succinate forming fumarate you can increase the ATP and the enzyme that catalyzes this reaction
The Krebs cycle, also known as the citric acid cycle comprises a set of chemical reactions that are essential for organisms to obtain energy.
One of the steps in the cycle involves the use of succinate with a chemical formula of C4H6O4 to form fumarate or C4H4O4. This means in this reaction it is necessary to remove 2 hydrogen atoms.
This process requires two main factors:
ATP or energy the cell uses to carry out the reactionSuccinate dehydrogenase or the enzyme that removes the hydrogen atomsBased on this, the reaction can be faster if there is more succinate dehydrogenase or if the energy increases.
Learn more in: https://brainly.com/question/13153590
An unbalanced force of 20N acts on a 4.0kg mass what is it's acceleration
Hi there!
According to Newton's second law:
∑F = m · a, where:
∑F = net force (N = kgm/s²)
m = mass (kg)
a = acceleration (m/s²)
Rearrange to solve for acceleration:
F/m = a
20N / 4.0kg = 5 m/s²
WILL GET BRAINLEST Which statement is the best example of how society affects the use of technology? A. Larger vehicles that use gasoline release more carbon dioxide than smaller gasoline-powered cars. B. Researchers are developing solar-powered cars that can travel long distances. C. People who make a lot of money tend to buy new cars with the most modern features. D. People who sell cars make more money when the supply of new cars is low.
Answer:
Hey there
It says "use of technology" so let's get rid of option B because that talks of development. Now let's get rid of A because we are ask "how society affects the use of technology", not technology affects things".
We are left with C and D. C sounds the most plausible because it is about how "sociaty affects the use of money". D is not right because it talks about how people sell cars.
As temperature increases, ____ energy increases.
Answer:
Kinetic Energy
Explanation:
Answer:
kinetic
Explanation:
ururhrhrrhrhhrhrhrhrhrhrhhrhrrhehhrhehehehehehehe
Calculate momentum- what is the momentum of the wooden ball after the collision?
Answer:
-32
Explanation:
3
In a race, a car travels 60 times around a 3.6 km track. This takes 2.4 hours.
What is the average speed of the car?
on km/h
Answer:
V = S / t = 60 * 3.6 km / 2.4 hr = 90 km / hr
I need the right answer ASAP NO LINKS!!!
This a Science question
Let G be the universal gravitational constant and mp be the mass of the planet a satellite is orbiting. Which equation could be used to find the velocity of the satellite if it is placed in a low Earth orbit?
Let G be the universal gravitational constant and mp be the mass of the planet a satellite is orbiting. Which equation could be used to find the velocity of the satellite if it is placed in a low Earth orbit?
The equation that could be used to find the velocity of the satellite if it is placed in a low Earth orbit is [tex]v = \sqrt{\frac{Gm_p}{200 \ km} }[/tex].
The given parameters;
mass of the planet, = [tex]m_p[/tex]A low Earth orbit is an orbit around the Earth with altitude in the range of 250 km and 2000 km.
The gravitational potential or the work done in bringing the satellite to the low Earth orbit is given as;
[tex]U = \frac{GMm_p}{R} \\\\[/tex]
where;
M is the mass of the EarthR is the altitude of the low Earth orbitlet the value of R = 400 km
Note: any value between 250 km and 2000 km can be used BUT 400 km is the only value within this range that can be found in the given options as you will see at the end of the solution.
[tex]U = \frac{GMm_p}{400 \ km}[/tex]
The kinetic energy of the satellite at the low Earth orbit is equal to the gravitational potential energy due to the altitude of the low Earth orbit.
[tex]K.E = U\\\\\frac{1}{2} Mv^2 = \frac{GMm_p}{400 \ km} \\\\v^2 = \frac{2Gm_p}{400 \ km}\\\\v^2 = \frac{Gm_p}{200 \ km}\\\\v = \sqrt{\frac{Gm_p}{200 \ km}}[/tex]
Thus, the equation that could be used to find the velocity of the satellite if it is placed in a low Earth orbit is [tex]v = \sqrt{\frac{Gm_p}{200 \ km} }[/tex].
Learn more here:https://brainly.com/question/19768887
Please help ASAP I need help
Answer:
I think the answer is A,B,C
Explanation:
suppose a 51 kg bungee jumper steps off the royal gorge bridge, in colorado. The bridge is situated 321 m above the arkansas river. the bungee cords spring constant is 32 N/m, the cords relaxed length is 104m and its length is 179m when the jumpers stops falling. what is the total potential energy associated with the jumper at the end of his fall? assume that the bungee cord has negligible mass
The total potential energy associated with the jumper at the end of his fall is 90,000 J.
The given parameters;
mass of the jumper, m = 51 kgheight of the bridge. h = 321 mspring constant of the cord, k = 32 N/mextension of the cord, x = 179 m - 104 m = 75 mThe total potential energy associated with the jumper at the end of his fall is calculated as follows;
U = ¹/₂kx² + mgΔh
where;
Δh is the change in height after falling
U = ¹/₂(32)(75)² + (51)(9.8)(0)
U = 90,000 J
Thus, the total potential energy associated with the jumper at the end of his fall is 90,000 J.
Learn more here:https://brainly.com/question/15731149
Francine ran 3 laps around the track. If the track was 0.25 miles, how far did she run?
What was her displacement at the end of her third lap?
Answer:
Francine ran a quarter of a mile or 0.75 percent of a mile.
Explanation:
what would be the football weight on earth
Answer:
410–460 g (14–16 oz) and is inflated to 65.7–68.8 kPa (9.5–10.0 psi).
Explanation:
d) Why is it so difficult to get accurate data for these objects?
Answer: For what objects? And what data?
Explanation:
can somebody help?pls.
A PVC (plastic) rod is rubbed with a nylon cloth. This process causes electrons to be transferred between the rod and the cloth, causing both objects to become charged.
Which of the rows in the table below correctly gives the nature of the charges on both the cloth and the rod, and the effect the objects have on each other after becoming charged?
Answer:
Charges on rod and cloth : opposite
Effect attract.
Explanation:
Opposite charges attract each other.
Whereas, Same charges repel each other.
The row that represents the nature of the charges and effect on both the cloth and rod is ; ( D ) Charges on rod and cloth are ; opposite while effect is ; Attract
When a plastic rod is rubbed against a nylon cloth it becomes negatively charged while the nylon cloth becomes positively charged.
Opposite charges do not repel each rather they attract each other. therefore after rubbing the plastic rod with the nylon cloth they will become attractive to each other and other oppositely charged materials.
Hence we can conclude that the materials will have opposite charges and will attract each other.
Learn more ; https://brainly.com/question/14390871
(i) A stone is thrown vertically upwards with an initial velocity of 60ms. Find
a) the maximum height attained by the stone
b) the time taken to reach the maximum height (Take g = 10 ms?)
c) the net displacement if the stone returns back to point from where it was thrown up.
Answer:
i) 180m ii) 6sec ii)180m
Explanation:
i) Hmax = U²/2g
= 60²/20
= 3600/20= 180m
ii). Tmax= U/g
= 60/10= 6sec
iii). X= ut²+ 1/2gt²
since U is 0,then ut=0
X=0+ 1/2×10×6²
X=5×36= 180m
hope its clear??
2 H2O2-> 2H20+02
2. What are the reactants in this reaction?
3. What are the products in this reaction?
4. What happened in this particular reaction? What happens in general decomposition reaction?
Explanation:
reactants --- hydrogen peroxide ( H2O2).products ----- water ( H2O) and oxygen (O2).decomposition of hydrogen peroxide to water and oxygen.Reaction of decomposition of hydrogen peroxide is very slow in moderate temperatures without the presence of a catalyst [11]. It can be sped up by increasing the temperature, which triggers the reaction of thermal decomposition. This reaction can be carried out in a liquid or vapour phase. This reaction is exothermic.hope this helps you.