The value of constants A and θ will be θ = 66.5° or 1.161 radians and A = 3.1 cm
Simple Harmonic Motion or SHM is defined as a motion in which the restoring force is directly proportional to the displacement of the body from its mean position. The direction of this restoring force is always towards the mean position.
x(t) = A sin (ωt + θ)
time = 0.00 seconds
2.83 = A sin ( 0 + θ)
A sin θ = 2.83 `equation 1
ν(t) = A ω cos (ωt+θ)
3.25 = A * 2.64 * cos (0 + θ )
3.25 = 2.64 A cos θ
A cos θ = 3.25 / 2.64 = 1.23 equation 2
dividing equation 1 and 2 , we get
tan θ = 2.30
θ = 66.5° or 1.161 radians
from equation 1
A sin θ = 2.83
A sin ( 66.5 ) = 2.83
A = 3.1 cm
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A golfer can hit a golf ball a horizontal distance of over 300 m on a good drive What maximum height will a 301.5 m drive each if it is launched at an angle of 25.0" to the ground? (Hint: At the top of its flight, the ball's vertical velocity com ponent will be zero.)
35.15 m maximum height will a 301.5 m drive each if it is launched at an angle of 25.0" to the ground.
What exactly is meant by velocity?The accurate measurement of an object's position and speed is its velocity. It is the distance that an item travels in one unit of time. The displacement of the item in one unit of time is the concept of velocity.
Briefing:Using the formula for the horizontal range, we will first determine the ball's projectile motion's launch velocity:
R = u²sin 2θ/g
where,
R = horizontal range = 301.5 m
u = launch speed = ?
θ = launch angle = 25°
Gravity's acceleration, or g, is 9.81 m/s2²
Therefore,
301.5 m = u²sin 50 /9.81 m/s²
u = √(301.5 m)(9.81m/s²) / sin 50
u = 62.14 m/s
Now, using the following formula, we will determine the projectile motion's maximum height (H):
H = u²sin²θ
H = (62.14m/s²) sin²(25⁰) / 2(9.81 m/s²)
H = 35.15 m
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What is velocity gradient?
Answer:
Explanation:
What Is Velocity Gradient? According to the definition of velocity gradient, the difference in velocity between the layers of the fluid is known as the velocity gradient. It is represented by v/x, where v stands for velocity and x stands for the distance between the adjacent layers of the fluid.
Four model rockets are launched in a field. The mass of each rocket and the net force acting on it when it launches are given in the table below. (1. 4.25kg 120N) (2. 3.25kg 120N) (3. 5.50kg 120N) (4. 4.50kg 120N), Which rocket has the lowest acceleration?
The correct answer is option 3 i.e., 5.50 Kg and 120 N had lowest acceleration among all options given.
What connection exists between force and mass of acceleration?
Mass times acceleration, or F=m x a, equals force. This means that in order to move an object at the same speed as an object with smaller mass, a stronger force is required. Newton's Second Law of Motion is this.
Acceleration = Force / Mass
Given, as per question in all the 4 options Force = 120 N same for all
So as per formula if we assume Force is constant
Then, if mass is increased then acceleration will be lowest as both are inversely proportional.
1. Acceleration= 120 / 4.25 = 28.23 m/s²
2. Acceleration= 120 / 3.25 = 34.28 m/s²
3. Acceleration= 120 / 5.50 = 21.81 m/s²
4. Acceleration= 120 / 4.50 = 26.66 m/s²
Hence answer is option number 3.
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As my puppy Ragnar got older, I had to find ways to entertain him. Ragnar
loves to chase rubber balls, so I kick a ball, sending it over a 3 meter high
tree that is 14m away. The ball lands at the same level from which it was
struck after traveling a horizontal distance of 17.8 meters.
(A) If the ball left the ground 54 degrees above the horizontal and landed
2.24 seconds later, what was its initial speed?
(B) How high was the ball when it passed over the tree?
(C) What is the highest point reached by the ball?
(D) If I was to throw the ball instead of kicking the ball
from the ground, how would this affect the ball's time of
flight? Explain.
The ball's velocity must be zero to reach the highest spot it can.
What about the velocity?When an item is moving, its velocity is the rate at which it is changing position as seen from a certain point of view and as measured by a specific unit of time.By dividing the amount of time it took the object to go a certain distance by the overall distance, one can calculate the object's initial velocity. V is the velocity, d is the distance, and t is the time in the equation V = d/t.The velocity of a moving object refers to how quickly it is moving in that direction. as quickly as a vehicle driving north on a freeway or a rocket taking flight.To learn more about velocity refer to:
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One day in science class Tara notices a lava
lamp in the back corner. The teacher plugs it in and after some time they notices the
"lava"moving up and down. Using your
knowledge of density explain why the "lava"
behaved in this manner.
Answer:
the lava is and burning like liquid that is from a volcano when it erupt lava
When two elements bond and
form a compound, what
happens to their neutrons?
A. The neutrons remain the same in the
nucleus of each atom.
B. Both elements lose neutrons.
C. They share or give away their neutrons.
When two elements bond and form a compound, then: A.) The neutrons remain the same in the nucleus of each atom.
What happens to their neutrons when two elements bond and form a compound?There are basically two types of bonds: ionic and covalent bonds. In both the cases, electrons are involved in formation of bonds. In ionic bonds there is a complete sharing of electrons.
In covalent bonds, there is sharing of electrons. Since the neutrons reside in the nucleus of the atom along with protons contributing for the atomic mass, hence during bonds formation number of neutrons remain unchanged.
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If there are no external torques acting on either system, in which case is the final kinetic energy of the system biggest?.
K.E. of rotation will remain constant if moment of the body is maintained constant.
what is kinetic energy?
A particle or an item that is in motion has a sort of energy called kinetic energy. An item accumulates kinetic energy when work, which involves the transfer of energy, is done on it by exerting a net force.
Main body:
This is as per the principle of conservation of angular momentum, i.e.
when T = 0, L= Iω = constant.
K.E. of rotation = 1/2 Iω²
E = I²ω²/2I = L²/2I
where L is constant, therefore, E∝1/I
i.e., K.E. of the system is not constant.
Therefore, moment of inertia of the system increase and K.E. will decrease and vice-versa.
Therefore, K.E. of rotation will remain constant if moment of the body is maintained constant.
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In an experiment a block of copper metal with a mass of 1.3 kg is heated
from 25 °C to 45 °C. The specific heat capacity of copper is 380 J/kg °C.
Calculate the energy needed to heat the copper to 45 °C.
The energy needed to heat the copper from 25 °C to 45 °C if the specific heat capacity of copper is 380 J/kg °C is 9880 J
ΔT = T - To
ΔT = Change in temperature
T = Final temperature
To = Initial temperature
T = 45 °C
To = 25 °C
ΔT = 45 - 25
ΔT = 20 °C
q = m C ΔT
q = Heat Energy
m = Mass
C = Specific heat capacity
m = 1.3 kg
C = 380 J / kg °C
q = 1.3 - 380 * 20
q = 9880 J
Therefore, the energy needed to heat the copper to 45 °C is 9880 J
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a 10.0 kg block of wood is pulled up a ramp with a cable at a constant velocity. given the information below, determine the work preformed if the block is moved 1.75 m up the ramp. if this work was preformed in 2.5 s, how much power was produced
Answer:
Work performed=57.14 NM
Power= 22.86 J/s
Explanation:
Work done= Force/distance
W=F/d
we don't have the force but weight and force is the same thing so to find weight we have to use the formula
Weight= mass × gravitational field strength
W=mg
W= 10.0×10. (please remember that g has a constant value of 10)
W=100 N
Therefore the force is 100 N
Going back to the original equation
W= 100/1.75
W= 57.14 NM
Power=Work done/time
P= W/t
P= 57.14/2.5
P= 22.86 J/s
A motorized wheel is spinning with a rotational velocity of = 1.81 rad/s. At t = 0s, the operator switches the wheel to a
higher speed setting. The rotational velocity of the wheel at all subsequent times is given by
w (t) = warctan (c + bt²)
where c = 1.5574 and b = 6.53 s^-2.
At what time famax is the rotational acceleration at a maximum?
Tamax =
What is the maximum tangential acceleration a, of a point on the wheel a distance R = 1.25 m from its center?
What is the magnitude of the total acceleration of this point?
The time at which the rotational acceleration is maximum is 0.26i s or 2.2i s.
The maximum tangential acceleration of the wheel is 4.1 m/s².
What is the rotational acceleration of the of the wheel?
The rotational acceleration of the wheel is the change in the angular velocity of the wheel with time.
α = dω/dt
where;
ω is the angular velocity of the wheelω = tan⁻¹(c + bt²)
α = dω/dt
α = (2bt)/[(c + bt²)² + 1]
the maximum angular acceleration =ω/t = 1.81/t
1.81/t = (2bt) / [c² + 2cbt² + b²t⁴ + 1]
1.81(c² + 2cbt² + b²t⁴ + 1) = 2bt(t)
1.81c² + 3.62cbt² + 1.81b²t⁴ + 1.81 = 2bt²
1.81(1.5574)² + 3.62(1.5574 x 6.53)t² + 1.81(6.53²)t⁴ + 1.81 = 2(6.53)t²
4.39 + 36.81t² + 77.18t⁴ + 1.81 = 13.06t²
77.18t⁴ + 23.75t² + 6.2 = 0
23.75t²(3.25t² + 1) = -6.2
23.75t² = -6.2 or 3.25t² + 1 = -6.2
t² = -6.2/23.75
t² = -0.26
t = 0.26i s
or
3.25t² + 1 = -6.2
3.25t² = -7.2
t² = -2.2
t = 2.2i s
The maximum tangential acceleration of the wheel at the given point is calculated as follows;
a = v²/r
a = ω²r
a = (1.81 rad/s)²(1.25 m)
a = 4.1 m/s²
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find the resultant of an easterly force of 100 N and a southerly force of 80 N acting at 65 degrees to the 100-N force
The resultant force will be 52N.
Resultant force: If two or more forces are acting at a certain point, their resultant force would be defined as the force that when applied at that same point, it will have the exact same effect like the two independent forces acting together.
Fx = F cos Ф
Fx = 100 × cos 65 degree (Cos 65 degree = 0.52)
Fx = 100 × 0.52
Fx = 52 N
Therefore, the resultant force will be 52 N.
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Two balls a and b, having different but unknown masses, collide. A is initially at rest when b has a speed v. After collision, b has a speed of v/2 and moves at a right angle to its original motion. Find the direction in which the ball a moves after the collision.
The direction in which the ball a moves after the collision is east of south
What is momentum ?
Momentum, the product of a particle's mass and its velocity. Momentum is a vector quantity. It has both magnitude and direction. Isaac Newton's second law of motion states that the rate of change of momentum over time is equal to the force acting on a particle. See Newton's Laws of Motion.
From Newton's second law, if a particle is subject to a constant force over a period of time, the product of that force and the time interval (momentum) equals the change in momentum. Conversely, the momentum of a particle is a measure of the time it takes for a constant force to come to rest
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O If the coefficient of kinetic friction between a crate and the floor is 0.20 how much force is needed to slide a 92 kg crate uniformly across the floor?
The crate (92 kg) will be slide on the rough floor with kinetic friction about 0,2.
Minimum force is required to allow the crate moves, which is calculated as follows :
Kinetic friction is formed because there are two or more things are sliding together. In this case, crate and floor are rubbing each other. Kinetic friction can cause the speed of things decreased.
Crate need a bigger force than the friction one to make it move.
So, we can calculate the value of a kinetic friction first.
f = μ x N
f = friction (Newton)
μ = coefficient of kinetic friction
N = Normal force (Newton)
f = μ × N
f = 0,2 × m × g
f = 0,2 × 92 × 10
f = 2 × 92 = 184 N
So, Crate need more than 184 N or bigger than a kinetic friction to allows it move.
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I have a material thats 65 cubic feet totaling 40000 cubic yards. How many dump trucks will it take to haul this material?
It will take about 2,500 dump trucks to haul the material. Assuming the capacity of the dump truck is 16 cubic yards.
Note: A standard dump truck is between 10 -16 cubic yards.
1 cubic yard = 27 cubic feet.
from the question:
40,000 cubic yards= 65 cubic feet
hence,
Assuming the dump truck capacity is 16 cubic yards
Then,
number of dump trucks = 40,000 cubic yards/16 cubic yards
=2,500
Therefore a dump truck of 16 cubic yards capacity, will need about 2,500 dump trucks to haul the material totaling 40,000 cubic yards.
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An experiment that produces waves on a string is analyzed, and the experimental value for the wave speed is found to be 66 m/s. If the accepted value for the wave speed is 63 m/s, what is the percent error?
The percent error of an experiment given the experimental and accepted values for the wave speed is 4.762%.
How to calculate percent error?Percent error is the absolute value of the error, divided by the accepted value, and multiplied by 100% as follows;
% Error = {experimental value − accepted value}/accepted value × 100%.
According to this question, an experiment that produces waves on a string is analyzed, and the experimental value for the wave speed is found to be 66 m/s. If the accepted value for the wave speed is 63 m/s, the percent error is calculated as follows:
Percent error = {66 - 63}/63 × 100
Percent error = 3/63 × 100
Percent error = 4.762%
Therefore, 4.762% is the percent error of the experiment.
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explain what is wrong with diagram. label the arrow correctly on the second diagram .
Vessel Mass Acting Downward (mg)
Bayonet Force Acting Above Vessel (Fb)
This force is called buoyancy. Buoyancy pushes objects up. Gravity exerts a downward force on an object determined by the object's mass. Therefore, if the downward force exerted by gravity on an object is less than the buoyant force the object floats.
Since the buoyant force on the body and the weight of the body are equal and opposite, the net force on the body is zero, giving the body a net force to levitate. The wind force acting on a sail moving a boat is an example of Newton's third law of motion. That is, every action has an equal and opposite reaction. But the relationship between force and motion is not as simple as the wind blowing just behind the sails propels the ship forward.
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Two friends stand at the top of the White Cliffs of Dover in England. One throws a
stone with a velocity of 11 m/s at an angle of 30° above the horizontal off the cliff
and into the water below. The second drops the stone from rest. Both release the
stones at exactly the same time from a height of 110 m above the water. Assuming
no air resistance, how long after the first splash is the second splash?
F
0.60 s
G
1.1 s
H
3.6 s
J
4.7 s
The second splash is 1.1 s after the first splash.
What is velocity?The rate at which a body's displacement changes in relation to time is known as its velocity. Velocity is a vector quantity with both magnitude and direction is displacement.
Given parameters:
Initial velocity of the First stone; u₁ = 11 m/s.
Initial velocity of the Second stone; u₂= 0 m/s.
Height of both cases; h = 110 m.
Acceleration due to gravity; g = 9.8 m/s².
So, If time taken by the first stone is t₁; then
h = u₁t₁ + 1/2 * gt₁²
⇒ 110 = 11 t₁ + 1/2*9.8 t₁²
⇒ 4.9 t₁² + 11 t₁ -110 = 0
So, by solving this quadratic equation we get: t₁ =3.73s.
And if time taken by the second stone is t₂; then
h = 1/2*g t₂²
⇒ t₂ = √(2h/g) = √(2×110/9.8) = 4.74 s.
Hence, the second splash happens after first splash by a time = (4.74 - 3.73) s = 1.01 s = 1.1 second ( approx.).
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A car of mass 1100kg accelerates from rest to a velocity of 40m/s in 20 sec. a). Calculate the acceleration of the car assuming it to be uniform
The acceleration of the car assuming it to be uniform is 2 m/s².
Acceleration is the rate of change of the velocity of an item with appreciation to time. Accelerations are vector portions. The orientation of an item's acceleration is given by the orientation of the net pressure appearing on that object.
Calculation:-
mass = 1100 Kg
initial velocity = 0
final velocity = 40 m/s
time = 20sec
v = u + at
40 = 0 a × 20
a = 2 m/s²
Acceleration is the charge at which velocity modifications with time, in terms of each speed and route. A factor or an object moving in a straight line is accelerated if it quickens or slows down. movement on a circle is extended despite the fact that the rate is consistent because the course is continually changing.
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4. What force must be exerted on a 1500-kg car to make it move with
an acceleration
of 3.8 m/s²
The force must be exerted on a 1500-kg car to make it move with
an acceleration of 3.8 m/s² is 5700 N.
According to Newton's Second Law Of Motion,
The Force is directly proportional to the Change in Momentum,
Thus, F ∝ dp/dt
Now, Momentum p = mv
F = m*dv/dt
F = ma
Thus, Force is the product of mass and acceleration,
Mass of the car = 1500 kg
Acceleration of the car = 3.8 m/[tex]s^{2}[/tex]
So, The force required will be = m*a = 1500 * 3.8 = 5700 N
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Compound interest is a method of calculating interest for which interest is computed on the initial investment amount as well as on any previous interest.
The starting principal sum is multiplied by both of these variables, and the annual interest rate is increased to the number of compound periods minus one.
The full original amount of the loan is then reduced by the resulting value. Compound interest is the term for interest that is earned on interest. This may be shown using simple math: if you start with $100 and it earns 5% interest every year, you will have $105 at the end of the first year. At the end of the second year, you will have $110.25. On the initial principal sum, simple interest is calculated each time. Compound interest is calculated using the sum of the principal and interest. It is equal every year on a particular principal.
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OPEN ENDED QUESTION
What is the connection between the fires
started in LA, Bakersfield, and Fresno?
A jury acquitted him of starting two fires in Fresno but convicted him of several fires that prosecutors claimed he started on his way home to Glendale.
Most serial arsonists only set fire to a place once. Nearly half of the samples consumed alcohol before lighting. The most common motive for arson was revenge followed by rioting vandalism profit and other crime cover-ups. Firefighters' motives for arson range from excitement and thrill to the desire to cover up a crime.
Excitement-based motivation indicates that the firefighter wanted to be seen as a hero. Gasoline is one of the most commonly used fire promoters because it is efficient, easy to ignite, and can usually be purchased and transported without question. The second most common fuels are thinner and kerosene.
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A small 10.0 g bug stands at one end of a thin uniform bar that is initially at rest on a smooth horizontal table. The other end of the bar pivots about a nail driven into the table and can rotate freely, without friction. The bar has mass 50.0 g and is 90 cm in length. The bug jumps off in the horizontal direction, perpendicular to the bar, with a speed of 20.0 cm/s relative to the table.
What is the angular speed of the bar just after the frisky insect leaps?
Express your answer in radians per second.
the angular speed of the bar just after the bug leaps is 0.044 ras/sec.
Given parameter:
Mass of the bug, m= 10.0g
Mass of the bar, M= 50.0 g.
Length of the bar, l = 90 cm.
Speed of the bug ,v = 20.0 cm/s.
Speed of the bar, V = ?
From conservation of momentum;
momentum of the bar = momentum of the bug
⇒ MV = mv
⇒ V = mv/M
= (10.0× 20.0)/50 cm/s.
= 4 cm/s.
Then, angular speed of the bar will be = V/l
= 4/90 rad/s.
= 0.044 rad/s.
Hence, the angular speed of the bar just after the frisky insect leaps is 0.044 rad/sec.
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A 100 V DC power supply is used to charge a 45 μF capacitor. What is the maximum charge of the capacitor?
Q=
After the capacitor is fully charged, it's disconnected from the power supply and connected to a 45 mH inductor. The resistance in the circuit is negligible. What is the frequency and period of electric oscillation in the circuit?
f=
T=
What is the charge on the capacitor at time t=2.9 ms?
q=
What is the current in the circuit at time t=2.9 ms?
i=
Capacitance is the ability of an object or device to store an electric charge. It is measured by the change in charge in response to a potential difference and is expressed as a ratio of these quantities.
For charge:
Q = CV
Where Q = Charge
C = Capacitance (45 μF or 45 × 10⁻⁶ F)
V = Voltage applied (100 V)
Q = 45 × 10⁻⁶ × 100
Q = 45 × 10⁻⁴ C
For angular frequency:
ν = 1/√(LC)
ν = angular frequency
L = Inductance (45 mH or 45 × 10⁻³ H)
C = Capacitance (45 μF or 45 × 10⁻⁶ F)
ν = 1/√(45 × 10⁻³ × 45 × 10⁻⁶ )
ν = 1/4.5 × 10⁻⁵
ν = 0.22 × 10⁵ H or 22 × 10³ H
For the period of electric oscillation:
t = 1/ν
t = period of electric oscillation
ν = angular frequency (22 × 10³ H)
t = 1/22 × 10³
t = 4.5 × 10⁻⁵ sec
Now, for current:
Q = It
I = Q/t
I = current
Q = Charge (45 × 10⁻⁴ C)
t = time (4.5 × 10⁻⁵ sec)
I = 45 × 10⁻⁴ / 4.5 × 10⁻⁵
I = 1 A
If the time is 2.9 ms, then charge and current will be
Q = It
Q = 1 × 2.9 × 10⁻³
Q = 2.9 × 10⁻³ C
I = Q/t
I = 2.9 × 10⁻³/2.9 × 10⁻³
I = 1 A
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Under electrostatic conditions, the electric field just outside the surface of any charged conductor.
The conductor's surface is always perpendicular to.
what is electrostatic condition?
Have you ever wondered why you experience a jolt upon contacting a doorknob? Deciphering these situations will teach you about the idea of electric charge. Two symbols, "+" and "-," can be found on batteries when they are analyzed. This is because the transmission of positive and negative charges occurs at these two ends.
The study of electric charges at rest is done by the science of electrostatics (static electricity).
The ability of some materials to collect light particles after rubbing, such as amber, has been recognised since classical times. Thus, the term "electricity" has its roots in the Greek word for amber, v (lektron). The forces that electric charges apply to one another give birth to electrostatic phenomena. Coulomb's law explains these types of forces.
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The current-potential difference graphs for a lamp and a diode are shown in Figure 1.
Complete the sentences to describe how the resistance changes as the current changes in a lamp and a diode.
As the__________ across the lamp increases, the
resistance of the lamp_____________
This is because the temperature____________
The current through a diode flows in one_______________ only.
The resistance is____________ in the reverse direction.
As the temperature across the lamp increases, the
resistance of the lamp increases.
This is because the temperature is proportional to resistance.
The current through a diode flows in one direction only.
The resistance is flowing in the reverse direction.
What is resistance?Resistance is described as a measure of the opposition to current flow in an electrical circuit. Resistance is known to be measured in ohms, symbolized by the Greek letter omega (Ω) which is named after Georg Simon Ohm (1784-1854), a German physicist who studied the relationship between voltage, current and resistance.
The relationship between temperature and resistance is that the resistance increases as the temperature increases in conductors and decreases with the increasing temperature in insulators.
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which of the following does not describe energy within an ecosystem
The statement which does not describe energy within an ecosystem is that Energy is always fully contained and is denoted as option A.
What is Ecosystem?
This is referred to as all the organisms and the physical environment with which they interact. Energy on the other hand is referred to as the ability to do work and examples include potential energy, kinetic energy, mechanical energy etc.
Energy can neither be created nor destroyed but can be converted from one form or type to another. it also have various types which are mentioned in the previous paragraph.
It is not always fully contained as a result of other factors which influences its presence because some are lost to heat energy while some percentage is used for the metabolism in organisms.
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The options are:
Energy is always fully contained.Energy cannot be created or destroyed.Energy can transform into different types.When energy transfers or transforms, some energy is always lost.How does magnetic force affect the energy in a system of magnets when the magnets are released and begin to move?.
The magnetic pressure modifications capacity power into kinetic power. Dylan places magnetic toy trains subsequent to each other on a track.
When magnets have appealing forces among them and they're moved apart, kinetic power is transferred into the magnets whilst they're released and they pass lower back together. converting the space between magnets changes the amount of strength that can be transferred into and out of a magnetic area.
A charged shifting particle is a particle in movement with either a positive or terrible price. Magnetic pressure has a good-sized impact on charged debris. A robust magnetic pressure can alter the route of a transferring charged particle. A big object with a magnetic force encourages particles to revolve around it.
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The magnetic force changes potential energy into kinetic energy.
Moving a magnet around a coil of wire, or moving a coil of wire around a magnet, pushes the electrons in the wire and creates an electrical current. Electricity generators essentially convert kinetic energy into electrical energy.
All magnets have north and south poles. Contrary poles are interested in every different, while the same poles repel every different. While you rub a chunk of iron alongside a magnet, the north-seeking poles of the atoms inside the iron line up inside the same direction. The force generated via the aligned atoms creates a magnetic subject.
When magnets are brought close collectively they exert a pressure on each different, like poles repel every different. Unlike poles attract each different. Appeal and repulsion between two magnetic poles are examples of non-touch force.
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As part of astronaut training, a prospective astronaut is spun around in a human centrifuge such that the candidate experiences a centripetal acceleration that is 2.5 times the acceleration due to gravity on the surface of the earth. If the candidate is 7.27 m from the center, determine the candidate's speed in meters per second.
Due to the relationship between linear and angular speed, the candidate's speed is 13.3 m/s
Circular MotionA satellite orbiting the earth is one of the example of a circular motion. The satellite will experience gravitational attraction towards the center of the earth. This attraction force provides the centripetal force
Given that a prospective astronaut is spun around in a human centrifuge such that the candidate experiences a centripetal acceleration that is 2.5 times the acceleration due to gravity on the surface of the earth. If the candidate is 7.27 m from the center, the parameters to work on are
Centripetal acceleration a = 2.5g = 2.5 × 9.8 = 24.5 m/s²Orbital radius r = 7.27 mSpeed v = ?To determine the candidate's speed in meters per second, let us first find its angular speed w in rad/s by using the formula
a = w²r
24.5 = 7.27w²
w² = 24.5 / 7.27
w² = 3.37
w = √3.37
w = 1.84 rad/s
The relationship between linear and angular speed is
v = wr
v = 1.84 × 7.27
v = 13.3 m/s
Therefore, the candidate's speed in meters per second is 13.3 m/s
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a 1,400-kilogram car is also traveling in a straight line at 10 m/swhat is its momentum
The velocity of the car is v = 28.6 m/s.
Solution:
v = p/m
v = 40,000 kg x m/s
1,400 kg
v = 28.6 m/s
Average velocity is a measure of total displacement divided by total time. The total displacement is the distance between the start and endpoints. Since the car moves from point A at both the start and end points the total displacement is zero and the average velocity is also zero.
Velocity is the distance traveled per unit of time, the speed of movement. The speed of a car traveling on a smooth, flat section of a highway without traffic congestion is constant and not zero. Acceleration is the rate of change of velocity. The reason is simple. Velocity is the percentage of time an object moves along a path and Velocity is the speed and direction of an object's movement.
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What is photon and it's uses
Answer:don’t
Explanation:
