expert that helps you learn core concepts.See AnswerWhat of the following is false about memory?Select one:a. human memory has emotional overtonesb. human memory is associative and content addressable.c. there is no capacity limit in short term memory.d. memory is reconstructive thus it is possible that we create false memories.

Answer:

Explanation:

Given:

D = 240 m

V = 1.2 m/s

___________

t - ?

t = D / V

t = 240 / 1.2 =  200 c     or  t = 200 / 60 ≈ 3,33 min

The torque was applied at distance of 14cm from the center of the bolt.

The perpendicular force on the wrench applied is 165N.

The total torque experienced by the bolt is 23.1 N-m.

The torque on any body is given by,

T = Fr

Where,

T is the torque on the body,

F is the force applied in the circular manner for the body,

r is the perpendicular distance of the force applied on the body.

So, now putting the values for the bolt,

23.1 = 165r

r = 0.14m

So, we can conclude here that the force was applied at a distance of 14 cm from the center of the bolt.

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In order to form a hypothesis that would illustrate the relationship between mass and kinetic energy, we first need to understand what kinetic energy and mass are and how they are related. Kinetic energy is the energy that an object possesses due to its motion, and is given by the formula KE = 0.5mv², where m is the mass of the object and v is its velocity. Mass, on the other hand, is a measure of the amount of matter in an object.

The relationship between mass and kinetic energy is direct, meaning that as mass increases, so does kinetic energy, provided that velocity remains constant. Similarly, if velocity increases, then kinetic energy will increase as well, provided that mass remains constant.

The hypothesis that illustrates this relationship can be stated as follows:If the mass of an object is increased, then the kinetic energy of the object will also increase, because kinetic energy is directly proportional to mass, assuming velocity remains constant.In other words, if the mass of an object is doubled, then its kinetic energy will also double, assuming that its velocity remains constant. This hypothesis can be tested through experiments that involve measuring the kinetic energy of objects with different masses, but with the same velocity.

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If the mass of an object increases, then its kinetic energy will increase proportionally because mass and kinetic energy have a linear relationship when graphed.

Answer:

You can describe the motion of an object by its position, speed, direction, and acceleration. An object is moving if its position relative to a fixed point is changing. Even things that appear to be at rest move.

Explanation:

According to the information, here are some examples of Newton's laws:  Imagine a book sitting on a table. The book will remain at rest until a force is applied to it, etc...

Newton's First Law of Motion states that an object at rest will remain at rest, and an object in motion will remain in motion at a constant velocity, unless acted upon by an external force.

Newton's Second Law of Motion states that the acceleration of an object is directly proportional to the force applied to it, and inversely proportional to its mass.

Newton's Third Law of Motion states that for every action, there is an equal and opposite reaction.

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Answer:

This is based upon the fact that meteorites are generally believed to have originated as solid debris from Larger bodies like meteoroid or asteroids

Explanation:

Iron meteorites are interpreted as deriving from the cooled metallic core of a larger asteroid , because meteorites are generally believed to have originated as solid debris from Larger bodies like meteoroid or asteroids that are located outside the planet but found their way into our planet .

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

Answer: There are five principles of fitness out of which two are overload principle and rest and recovery principle. Overload principle is one of the most important principle which tell that to gain and improve the fitness one should do the hard work.  

Slowly and gradually the intensity and time of exercise are increased so that our body can adapt to the hard work. Overload principle plays an important role in improving the skills and improving performance during exercise and sports.

Rest and recovery principle is important to relax the body and release the stress that happens due to intense training like in case of weight lifting one day rest should be taken to repair and rebuild the muscles. This allows the body to encounter the fatigue and improve performance.

Explanation:

Answer:

10m/s I believe

Explanation:

F=MA

A=F/M

A=2/0.2

A=10m/s

When the stopping distance rises by 42%, the average force required to stop the puck decreases by 29.6%.

Part A:

When a force F is applied to a puck of mass m moving with a speed v on a frictionless surface, the puck experiences a deceleration a, given by Newton's second law of motion:

F = ma

Since the puck comes to rest after traveling a distance d, we can use the equations of motion to relate the deceleration a to the initial speed v and the stopping distance d:

v² = 2ad

Solving for a, we get:

a = v² / 2d

Substituting this expression for a in the equation F = ma, we get:

F = (m * v²) / (2 * d)

Therefore, the magnitude of the force F required to stop the puck in a distance d is given by F = (m * v²) / (2 * d).

Part B:

If the stopping distance d increases by 42%, the new stopping distance is 1.42d. Assuming that the mass m and the initial speed v are unchanged, we can use the same equation for F as in Part A to find the new force required to stop the puck:

F' = (m * v²) / (2 * 1.42d) = F / 1.42

The percent change in the average force needed to stop the puck is:

% change = [(F' - F) / F] * 100%

Substituting the expression for F' in terms of F, we get:

% change = [(F / 1.42 - F) / F] * 100% = -29.6%

Therefore, the average force needed to stop the puck decreases by 29.6% when the stopping distance increases by 42%, assuming that the mass and initial speed of the puck remain unchanged.

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The kinetic coefficient of friction is 0.40

Kinetic friction, also known as sliding friction or gliding friction, is the slowing force between two objects moving relative to each other. This is important in understanding the dynamic friction coefficient. The dynamic coefficient of friction is the pulling force required to keep an object in motion divided by the pulling force on the two sliding surfaces. This factor is specific to the materials involved in the contact surfaces. The rougher the surface, the higher the coefficient.

Calculation:

given

mass =10kg

force(Ff)=40N

so

Ff=μ F=μmg

   40=μ*10*9.8

   μ=0.40

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Answer:

hi your answer to this question is 220'

Explanation:

hope this helped you

At the mouth of a submarine canyon, you would expect to find a fan-shaped accumulation of sediment called a submarine fan. Submarine canyons are deep,

steep-sided valleys that cut into the seafloor and can extend for many kilometers. They are often formed by underwater erosion from currents, landslides, and other geological processes. At the mouth of the submarine canyon, where it opens up onto the continental shelf, sediment carried by the currents can accumulate and form a fan-shaped deposit. This sediment can come from a variety of sources, including the erosion of the canyon walls, rivers that empty into the ocean, and ocean currents that transport sediment from other areas.

Submarine fans can be quite large and can play an important role in the transport of sediment and nutrients in the deep ocean. They can also be important sites of oil and gas deposits, as well as deep-sea habitats for a variety of marine organisms.

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Answer:

same

Explanation:

They both have the same volume....so they both displace an equal amount of water and thus experience the same buoyancy force

From the information in the picture, it's not possible to select any of the choices on the list.

-- Knowing the horizontal and vertical forces on the plane, we can't tell what direction it will move.  We can only tell what direction it will accelerate.

The net horizontal force is (200N right) - (50N left).

. . . That's 150N to the right, so the plane accelerates to the right.

The net vertical force is (175N up) - (75N down).

. . . That's 100N upward, so the plane accelerates upward.

-- We can't tell the compass direction of the net force, because the picture doesn't tell us the compass direction of the horizontal forces.

The correct answer is b) never true. When capacitors are connected in series, the equivalent capacitance of the combination decreases. This is because the total charge on the combination is equal to the charge on each individual capacitor, but the voltage across the combination is the sum of the voltages across each capacitor.

The formula for capacitance is C = Q/V, so if the charge is the same but the voltage is higher, the capacitance will be lower.

Therefore, as more and more capacitors are connected in series, the equivalent capacitance of the combination decreases.

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The green ball moves to the right with speed v/2. Here option C is the correct answer.

The collision between the two balls can be analyzed using the principles of conservation of momentum and conservation of kinetic energy.

Conservation of momentum states that the total momentum of a system remains constant if no external forces act on the system. In this case, the initial momentum of the system is:

p_initial = mv + 0 = mv

where the first term represents the momentum of the red ball and the second term represents the momentum of the green ball, which is initially zero since it is at rest.

After the collision, the red ball is stationary, so its momentum is zero. The momentum of the green ball can be calculated as follows:

\(p_{\text{final}} = 0 + 2mv_{\text{final}} = 2mv_{\text{final}}\)

where v_final is the speed of the green ball after the collision.

Conservation of momentum requires that the initial and final momenta are equal, so:

\(p_{\text{initial}} = p_{\text{final}} \quad\)

\(\quad mv = 2mv_{\text{final}}\)

Solving for v_final, we get:

v_final = v/2

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Answer:

76.53 kg; 9.15 m/s² left.

Explanation:

Given the following data;

Weight of car = 750N

Applied force = 700N

a) To find mass

Weight can be defined as the force acting on a body or an object as a result of gravity.

Mathematically, \( Weight, W = mg\)

We know acceleration due to gravity is equal to 9.8 m/s²

Substituting into the equation;

\( 750 = m*9.8\)

\(Mass, m = \frac{750}{9.8}\)

Mass, m = 76.53kg

b) To find the acceleration;

Force is given by the multiplication of mass and acceleration.

Mathematically, Force is;

\( F = ma\)

Where;

Making acceleration (a) the subject, we have;

\(Acceleration (a) = \frac{F}{m}\)

Substituting into the equation;

\(Acceleration (a) = \frac{700}{76.53}\)

Acceleration (a) = 9.15 m/s² left.

Explanation:

The mass of a body is its inertia or resistance to change of motion. Mass can therefore be measured either by the amount of force necessary to impart to the body a given motion in a given time or by the acceleration produced by a given force. ...

The sun uses nuclear fusion to generate its energy. In the very distant future, the sun will eventually run out of fuel is A. All the hydrogen and smaller elements will eventually fuse into larger elements until fusion is no longer possible.

The sun generates its energy through nuclear fusion, a process in which lighter elements, primarily hydrogen, fuse together to form heavier elements like helium. As the sun continues to burn through its hydrogen supply, it will gradually create heavier elements through fusion.

Once the core hydrogen is depleted, the sun will start fusing helium into heavier elements like carbon and oxygen. This process will continue until the sun has exhausted its fuel supply, and the fusion of heavier elements becomes energetically unfavorable. When this stage is reached, the sun will no longer be able to sustain fusion, resulting in a decrease in its energy output. As the sun's energy production declines, it will undergo a series of changes, ultimately evolving into a white dwarf, a small and dense remnant of its former self.

It's important to note that options B, C, and D are not accurate explanations of the sun's eventual fate. Nuclear fusion does not involve combustion (option B), nor does it create more energy than is consumed (option C). Additionally, the sun's fuel depletion will not occur due to atoms splitting in the core (option D); instead, the fusion of lighter elements into heavier ones will lead to the end of the sun's fuel supply. Therefore the correct option A

The Question was Incomplete, Find the full content below :

The sun uses nuclear fusion to generate its energy. In the very distant future, the sun will eventually run out of fuel.

How will this happen?

A. All the hydrogen and smaller elements will eventually fuse into larger elements until fusion is no longer possible.

B. All the flammable elements, like hydrogen, will combust resulting in no more available fuel.

C. The sun will not run out of fuel since fusion continually creates more energy than is consumed.

D. The sun will stop burning once all the atoms in the core have split.

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Answer: 42g

Mass will still stay the same because mass is a weight without pull of gravitational force. So whichever plant it is in, even in jupiter, the mass is going to be 42g.

Answer:

12.5

Explanation:

Pressure: Force/Area = 650/52

=12.5

Answer:

The Lunar month is the time period for the moon to complete ONE revolution around Earth. SIDEREAL MONTH: 27.3 days SYNODIC MONTH: 29.5 days

Answer:

1470 N

Explanation:

Using formula: W=mg

W=150 x 9.8

W= 1470 N

Answer:

ture

Explanation:

It is true that the climate of a town on the coast will have less dramatic changes than a town further inland.

The coast, also known as the coastline or seashore, is the area where land meets the ocean, or a line that forms the boundary between the land and the coastline. The Earth's coastline is approximately 620,000 kilometers long.

It is well-known for its sandy beaches, surfable waves, mild climate, and diverse population.

The coastal plains of several major rivers define the region, which is bounded by the Transverse Mountain Ranges, which include the Santa Monica and Santa Susana Mountains.

A town on the coast's climate will change less dramatically than a town further inland.

Thus, the given statement is true.

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The College Board provides an official formula sheet for the AP Physics 1 exam, which includes several different formulas like kinematics, Newton's law and many others.

1)  Kinematics:

v = vo + at

x = vot + \(1/2at^2\)

\(v^2\) =\(vo^2\)+ 2a(x - xo)

2) Newton's Laws:

Fnet = ma

Fg = mg

Ff ≤ μFn

3) Work, Energy, and Power:

W = Fdcosθ

K = \(1/2mv^2\)

ΔU = -W

P = W/t

4) Systems of Particles and Linear Momentum:

p = mv

Fnet = Δp/Δt

I = \(mR^2\)

5) Rotational Motion and Torque:

τ = Frsinθ

α = Δω/Δt

KErot = \(1/2Iω^2\)

6) Oscillations and Gravitation:

T = 2π√(L/g)

Fg = \(G(m1m2/r^2)\)

7) Waves:

v = fλ

v = √(F/μ)

Note that this list is not exhaustive and other formulas may also be relevant to the AP Physics 1 exam. It's important to review the entire formula sheet and understand how each formula is derived and applied in different contexts.

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\( \bold{\underline{\underline{\underbrace{Answer}}}} \)

5 images

Explanation:

⠀

⠀

What is reflection of light?

The reflection of light is the phenomenon in which the rays of light falls on the object and change it's path.

⠀

How image is formed in plane mirror?

When you look at the mirror the image is formed behind the mirror and it is virtual. The light from the object which reaches the mirror gets reflected back.

⠀

⠀

The formula to find the no. of images between the 2 plane mirror at any angle θ.

\( \sf No. \: of \: images = \frac{360 \degree}{ \theta} - 1\)

According to the question the plane mirror is inclined at 60° angle.

Substituting the required values.

\( \sf \large \frac{ \cancel{360} \small \: \: 6}{ \cancel{60}} - 1 \\ \\ \sf \large 6 - 1 \\ \\ \boxed{ \frak{ \implies 5} }\)

The 2 plane mirror will form 5 images inclined at 60° angle.