Answer:
Explanation:
KE = 1/2mv^2
=1/2(8)(3^2)
=4*9
=36 Joules
How is it possible for the same object to have different amounts of gravitational potential energy?
Answer:
In Newtonian mechanics, the gravitational energy possessed by a mass, because of the gravitational field produced by a second mass.
Explanation:
Please help me with physics! And provide a quick explanation. Offering 100 points and brainliest!
Answer:
I think it's b and I'm sorry if it's wrong
Two masses oscillating together with each of their time period as ,'T'
To find↷New time period ,'T'Answer↷Option B
Time period is independent of mass so it will remain same irrespective of the mass on the spring so the new time period would be the exact same as the previous one.Solution↷we know that,
The time period of a mass 'm' on a spring of spring constant 'k' can be strategize by the following equation :
[tex] \huge \rightarrow \: T \: = 2π \sqrt{ \frac{m}{k} } [/tex]
m⇢mass of the body [kg]k⇢spring constant [Nm^-1]According to the question,
The new mass would be 2mThe new spring constant would be 2kso,
The new time period would be
[tex] \huge \rightarrow \: T ' \: = 2π \sqrt{ \frac{2m}{2k} } [/tex]
[tex] \huge \rightarrow \: T ' \: = 2π \sqrt{ \frac{m}{k} } [/tex]
[tex] \huge \rightarrow \: T ' \: = T[/tex]
Hence ,option B is correct ✓
Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional questions. Online Content: Site 1 Online Content: Site 2 How is coal formed and why is it considered a nonrenewable resource? (Site 1)
Answer:
Coal is fossil fuel extracted from earth and since it takes a long time to replenish, it is called a non renewable source of energy
Explanation:
Coal is formed from the fossil fuel that lie deep beneath the earth crust . These fossil fuels are dead remains of living organism that burried beneath the earth crust million of years ago.
Coal is non renewable because if once it gets depleted it will take a very very long time to replenish.
Answer: Coal is fossil fuel extracted from earth and since it takes a long time to replenish, it is called a non renewable source of energy
Explanation: just did it
1. In the following circuit,which bulb lights first?
A) Bulb A
B) Bulb B
C) Bulb C
D) They all light at the same time
E) A and C light first, B lights after them.
Answer:
Bulb B is the answer
convert 35 km/h to m/s
Which explanation BEST supports Newtons second law of motion
Answer:
c
Explanation:
because newton's second law states that F= MA
which suggests that if M increases, F also increases which is the force,
let me give you a tip, during exam, just type any random numbers into the formula, like at first you type 5 into the M, then increase M, by putting 10 into the M , keep the acceleration the same for this, okay?
you will see that the force will increase,
by this I mean that option says largest mass, so the force will also be very big because in reality do you use more force on heavier box or a lighter one to push it across the room?
so larger mass, larger force, greater acceleration
but the question is not being clear, whether to the force remains constant for every object, if it does then A is false . and B is false because if the forces is constant, and it is light, it would require a small amount of force ,
but the other options, gave us a clue about the force so you can choose either c or d but see the explanation above,
the only corrext option will be c.
if not, please report this, someone will have a go at it
:) byeee
a bird flaps its wings 8 times per second. what is the frequency of the birds wing flapping?
EXPLAIN
50 POINTS
Answer:
480 flaps per minute
Explanation:
8*60 =480
Answer:
480 flaps per minute
Explanation:
8*60 =480
mark me brainy plz
please help me !!!!!!
Answer:
A
Explanation:
A disadvantage is that sexual reproduction takes longer than asexual reproduction. A mate must be found, the egg must be fertilised by sperm, and then the offspring develop. ... This means that some individuals would survive and be able to reproduce and generate more offspring.
Engineers at the Space Centre must determine the net force needed for a rockets engine to achieve an acceleration of 70 m/s2. Assume the rocket is in outer space with no gravitational or other forces acting on it. If the mass of the rocket is 45 000 kg, what force is required to be produced by the rocket engines?
Answer:
3,150,000N
Explanation:
According to Newton's second law;
F = mass * acceleration
Given
Mass = 45000kg
acceleration = 70m/s^2
Substitute
F = 45000 * 70
F = 3,150,000N
Hence the force required to be produced by the rocket engines is 3,150,000N
Answer:
3,150,000 Newtons
Explanation:
F=M*A
F=45,000kg times (*) 70 m/s squared
F=3,150,000N (newtons)
EXPLAIN CONSERVATION OF MOMEMTUM WITH THE HELP OF COLLISION OF TWO OBJECT.
i hate this question.
Conservation of momentum - is when the total momentum before and after collision is equal.
Here is the formula darling,
p = p
mv = mv
See the pic for example. HmpH
A toy rocket has a mass of 2.0 kg. The rocket has a force of 8.0 N acting on it. What is the acceleration of the rocket?
6.0 m/s^2
0.25 m/s^2
16.0 m/s^2
4.0 m/s^2
Answer:
force=mass × acceleration
8=2 × acceleration
acceleration= 8/2= 4 m/s²
Answer:4 m/s²
Explanation:
why are north and south poles important to magnets
Answer:
All magnets have north and south poles. Opposite poles are attracted to each other, while the same poles repel each other. When you rub a piece of iron along a magnet, the north-seeking poles of the atoms in the iron line up in the same direction. The force generated by the aligned atoms creates a magnetic field.
Hey there ..
if u found it helpful please mark me as brainliest
Study the three loops shown below. For each loop, state which of the bulbs will light when the
!!!!PLZ HELP!!!!!
connections are made.
2.
A) bulb A
B) bulb B
C) both bulbs
D) neither bulb
A) bulb A
B) bulb B
C) both bulbs
D) neither bulb
I
All changes
5. What is the major difference between the Bohr model and the currently accepted atomic
model?
O Bohr assumed that electrons could be found within an electron cloud.
O Bohr assumed that electrons move in fixed orbits.
Bohr assumed that the nucleus was positive.
Bohr assumed that electrons have very little mass.
How can circular motion be accelerated when speed is constant?
A. Because of the accelerator pedal in the vehicle
B. Because Newton said
C. Because direction changes
D. Because the vehicle has circular wheels
Answer:
Correct answer is C: Because direction changes.
Explanation:
Hope you have a wonderful weekend.
TRUE or FALSE: An object's mass changes depending on which planet it is located.
A. TRUE
B. FALSE
Answer:
Fales
Explanation:
That's why scientists and engineers often measure an object's mass—how much matter the object contains—rather than its weight. Mass stays the same regardless of location and gravity. You would have the same mass on Mars or Jupiter as you do here on Earth. Your weight is different on other planets due to gravity.
where did the scientific revoluton began
Answer: The scientific revolution began in Europe toward the end of the Renaissance period, and continued through the late 18th century, influencing the intellectual social movement known as the Enlightenment
Explanation:
TRUE or FALSE: An object's weight changes depending on which planet it is located.
A. TRUE
B. FALSE
Answer:
B False
Explanation:
plz correct if im wrong i am 100% sure thx
The answer should be true I hope this helped:)
A wave can travel through a solid, liquid or gas or no matter at all
True or false?
Why does the North star not move but the other stars move
Answer:
it's the star in the center of the star field
Explanation:
Why Doesn't Polaris Move? Polaris is very distant from Earth, and located in a position very near Earth's north celestial pole. ... Polaris is the star in the center of the star field; it shows essentially no movement. Earth's axis points almost directly to Polaris, so this star is observed to show the least movement
Explain how the embryological development of different species reveals similarities of organisms that are not evident in the fully formed anatomy.
Answer:Comparison of the embryological development of different species also reveals similarities that show relationships not evident in the fully-formed anatomy.
Explanation:
Comparison of the embryological development of different species also reveals similarities that show relationships not evident in the fully-formed anatomy.
(Have a great day :D)
what is the gain in gpe when a brick of 2.00 kg is lifted up by 11.5 m
Explanation:
the question is not clear
Which kind of force(s) cause acceleration?
Answer:
unbalanced force,
Explanation:
The bigger the unbalanced force acting on the object the bigger the acceleration of the object. The more mass the object has, the more inclined it is to resist any change to its motion.
Calculate the speed of a dolphin that is observed swimming 75 meters in 5.0 seconds.
Answer:
15 meters/second
Explanation:
Determine the acceleration of a car of mass 900 kg, when a net force of 2700 N acts on it.
if you already have the time which is 4s and the initial velocity which is 9.8m/s and the acceleration which is -9.8m/s/s. what would the dispacement be?
Answer:10
Explanation:
2+2=10
Answer:
10
Explanation:
2+8=10
6+4=10
5+5=10
7+3=10
9+1=10
3+2+4+1=10
What were the organic compounds Professor Wadhwa found and why are they important?
Answer:
Organic compounds are important because all living organisms contain carbon. They are the basic components of many of the cycles that drive the earth. For example, the carbon cycle that includes the exchange of carbon between plants and animals in photosynthesis and cellular respiration.
Only the smartest person in science can help me right now...
1. Use the given soil triangle. What percentage of sand does loam have?
2. Use the given soil triangle. What percentage of silt does loam have?
3. Use the given soil triangle. Look for the letter B in Sandy Clay Loam. What percentage of clay does "B" have?
4. Use the given soil triangle. Look for the letter B in Sandy Clay Loam. What percentage of silt does "B" have?
Answer:
Loam is 40% sand, 40% silt, and 20% clay
Explanation:
John attached a ball to a spring
Answer:
C down
Explanation:
The ball is pulling the spring down so this must be the direction of the force
Which of the following statements are TRUE about nuclear energy?
A.Nuclear energy can result from splitting large atoms.
B.Nuclear energy can result from combining small atoms.
C.Nuclear energy is how the sun and stars make energy.
D.All of the above.
Answer:
d
Explanation: