Why is it easier to cut meat with a sharp knife than with a blunt knife​

The force F1 is equal and opposite to the downward force thus, F1 is equal to 60 N. The force F2 is inclined to 30 ° from leftward force and it is equal to 38.97 N in magnitude.

Force is an external agent acting on a body to deform it or to change its state of motion or rest. Force is a vector quantity and it is characterised by its magnitude and direction.

If two forces acting on a body from the same directions, then the net force will be the sum of these two forces. If they are acting from opposite directions, they will cancel each other in magnitude.

The force F1 is equal and opposite to the force acting downward. Thus its magnitude is 60 N. The force F2 is inclined to 30 ° from horizontal direction.

F2 = 45 cos 30 = 38.9 N.

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The speed of the baseball is 30.38m/s .

We are given that,

The mass of bat = m₁ = 4.3 kg

The mass of baseball = m₂ = 2.5 kg

The initial velocity of bat = v₁ = 37 m/s

The final velocity of bat = v₁' = 19 m/s

So that the speed in baseball can be calculated from the law of conservation of momentum which can be given as,

mₙvₙ = m₁v₁ +m₂v₂

(m₁ + m₂)vₙ = m₁v₁ + m₂v₂

Where, vₙ is the speed of the baseball after impact, mₙ is the total mass of the system ,

(4.3kg + 2.5kg)vₙ = (4.3kg × 37m/s) + (2.5kg × 19m/s)

(6.8kg) vₙ = 159.1kg-m/s + 47.5kg-m/s

vₙ = (206.6kg-m/s)/6.8kg

vₙ = 30.38 m/s

Therefore, the speed of the baseball would be 30.38m/s after impact.

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The pressure increase is:pressure increase = pressure - atmospheric pressure, pressure increase = 191,863.51 - 101,325pressure increase = 90,538.51 Pa = 284,722.22 Pa (rounded to two decimal places)

Explanation:Pressure is defined as force per unit area.

Therefore, we use the formula:pressure = force/areaPiston area = πr²Where r is the radius of the piston, given as 1.2 cm = 0.012 m.Area of the piston:Area = πr²Area = π(0.012m)²Area = 4.5239 × 10⁻⁴ m²The force applied to the piston is 41 N.pressure = force/areapressure = 41/4.5239 × 10⁻⁴pressure = 90,538.51 PaHowever, this is the gauge pressure, that is, the pressure relative to atmospheric pressure.

To find the absolute pressure, we need to add the atmospheric pressure which is approximately 101,325 Pa.pressure = gauge pressure + atmospheric pressurepressure = 90,538.51 + 101,325pressure = 191,863.51 PaBut this is still not the final answer since the question asks for the pressure increase in the fluid.

Hence, the pressure increase is:pressure increase = pressure - atmospheric pressurepressure increase = 191,863.51 - 101,325pressure increase = 90,538.51 Pa = 284,722.22 Pa (rounded to two decimal places)

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A molecule with 5 bonding domains and 2 lone pairs will have an electron-domain geometry of pentagonal bipyramidal and a molecular geometry of seesaw.

The electron-domain geometry of a molecule with 5 bonding domains and 2 lone pairs can be predicted using the Valence Shell Electron Pair Repulsion (VSEPR) theory. This theory states that electron pairs around a central atom arrange themselves to minimize repulsion, resulting in specific geometries based on the number of electron pairs.

In this case, there are a total of 7 electron pairs: 5 bonding domains and 2 lone pairs. This corresponds to an electron-domain geometry of pentagonal bipyramidal. However, molecular geometry is determined by considering only the bonding domains and ignoring the lone pairs.

To determine the molecular geometry, we must identify the positions of the lone pairs within the pentagonal bipyramidal structure. Lone pairs are typically located in equatorial positions, as these provide more space and minimize repulsion. With 2 lone pairs occupying 2 of the 5 equatorial positions, there will be 3 equatorial bonding domains left.

The molecular geometry, taking into account the 3 equatorial bonding domains and the 2 axial bonding domains, is called seesaw (or disphenoidal). This geometry is characterized by a central atom bonded to two axial atoms and three equatorial atoms, with the axial bonds in a linear arrangement and the equatorial atoms forming a trigonal planar configuration around the central atom.

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Answer:

Both particle and wave properties

Explanation:

Light is defined as a particle and a wave, and even as a combination of a particle and a wave. A unit of light is the photon. Higher energy photons behave like particles and low energy photons behave like waves.

Experiments performed with light indicate that light exhibits both particle and wave properties.

The activity occurring at an axon terminal involves the following labelled 1 - 6:

The transmission of nerve impulses between neurons, muscles cells or glands is known as nervous transmissions.

Axons are long slender projections of neurons which are responsible for nervous transmission.

Neurons use both electrochemical signals and chemicals known as neurotransmitters to transmit impulses from one neuron to the next.

The junction between two neurons or an effector cell is known as a synapse.

Neurotransmitters are packaged into synaptic vesicles at the axon end. When electrical signal reaches the end of the axon, influx of calcium ions through the calcium channel cause the the synaptic vessels to fuse with the presynaptic membrane and then release their contents into the synaptic cleft or space.

The neurotransmitters released then bind to the motor end plate resulting in another impulse transmission along the second neuron or an action by effector cells.

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In this example, there would be 6 stirrups crossing the shear crack.

The number of stirrups crossing a shear crack can be calculated using the formula n = d/s, where n represents the number of stirrups, d represents the crack diagonal, and s represents the spacing between the stirrups.

To calculate the number of stirrups crossing a shear crack, you need to determine the crack diagonal, which is the length of the crack along its diagonal path. This length can be measured or estimated based on the shear crack angle assumption of 45 degrees.

Once you have the crack diagonal length, you need to determine the spacing between the stirrups, which is the distance between each stirrup. This spacing can be specified in the design code or determined based on structural requirements.

Using the formula n = d/s, you can then divide the crack diagonal length by the stirrup spacing to find the number of stirrups crossing the shear crack.

For example, let's say the crack diagonal length is 900 mm and the stirrup spacing is 150 mm. Plugging these values into the formula, we have n = 900 mm / 150 mm = 6 stirrups.

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The charge of a particle in a magnetic field can be determined by measuring the force, velocity, and strength of the magnetic field using the Lorentz force equation. There are various methods to measure the charge, such as using a particle accelerator or mass spectrometer.

In a magnetic field, charged particles experience a force that can be used to determine their charge. This force, known as the Lorentz force, is given by the equation F = q(v x B), where F is the force, q is the charge of the particle, v is the velocity of the particle, and B is the strength of the magnetic field.

To determine the charge of a particle in a magnetic field, you can measure the velocity of the particle and the strength of the magnetic field, and then measure the force experienced by the particle. By rearranging the equation F = q(v x B), you can solve for the charge q.

It is important to note that the Lorentz force only applies to charged particles that are in motion. If the particle is stationary, it will not experience any force in a magnetic field.

In practice, there are many ways to measure the charge of a particle in a magnetic field, such as using a particle accelerator or a mass spectrometer. These techniques involve manipulating the motion of the particle in a controlled way and measuring the resulting forces and velocities to determine its charge.

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Complete question:

How can I know the charge of a particle in a magnetic field?

According to the electromagnetic spectrum, ultraviolet light has wavelengths from 10 nm to 400 nm and infrared light from 750 nm to 1 mm.

This means that infrared light has a longer wavelength than ultraviolet light.

We know the relation between wavelength and frequency as λ = c / f

where, λ is the wavelength

c is the speed of light

f is the frequency

The above equation tells us that frequency is inversely proportional to the wavelength. In other words, if the wavelength increases, frequency decreases.

As infrared light has a longer wavelength than ultraviolet light, infrared has a lower frequency than ultraviolet rays.

The question is incomplete. The complete question is how do the wavelength and frequency of infrared light compare to the wavelength and frequency of ultraviolet light?

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Answer:

The difference between the sidereal and synodic months occurs becuase as our moon moves around the earth, the earth also moves around our sun. Our moon must travel a little farther in its path to make up for the added distance and complete the phase cycle.

Explanation:

Hope this helps.

What is the tangential acceleration of a gyroscope flywheel?

The tangential acceleration can be calculated as follows:

The equation of tangential acceleration is:

\(a_{t}=a_{}\)·\(r\)

Where, \(a_{t} =\) tangential acceleration

\(a\) = radial acceleration

\(r\) = radius of flywheel

\(a_{t} =\) (11.1 \(\frac{rad}{s^{2} }\))·(3.38cm)

\(a_{t}\) = 37.518\(\frac{rad}{s^{2} }\)

The tangential acceleration is 37.518\(\frac{rad}{s^{2} }\)

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Answer:2AgI + Na2S → Ag2S + 2NaI I am pretty sure this is the answer

Explanation:

Answer:

Velocity

Explanation: It cannot be speed, so it will have to be velocity.

As a cart travels around a horizontal circular track, the cart must undergo a change in velocity, therefore the correct answer is option C.

The total displacement covered by any object per unit of time is known as velocity. The generally considered unit for velocity is a meter per second.

As given in the problem, as a cart travels around a horizontal circular track, the cart must undergo a change in,

As the car travel around a horizontal circular track, there is a change of direction at every instant that's why the velocity of the car change every second even if the speed of the car is constant,

Thus, the correct answer is option C.

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The question is incomplete the complete question is,

As a cart travels around a horizontal circular track, the cart must undergo a change in,

A.speed

B.mass

C.velocity

D.gravity

Answer:

Ecliptic

Explanation:

You asked for the term that is used to describe Earth going around the sun

The ecliptic is the path the sun, moon, and planets take across the sky as seen from Earth. It best defines the plane of the Earth's orbit around the sun. The imaginary line can best be visualized in the days just before full moon.

Hope it helped

Answer:

Option (3).

Explanation:

The expression for acceleration of an object is given by :

\(a=\dfrac{v-u}{t}\)

(v-u) = the change in velocity and t is time taken

We need to write the option that has the ame dimensions as an expression yielding a value for acceleration (m/s²).

Option (1).

\(\dfrac{\delta v}{(\delta t)^2}=\dfrac{m/s}{s^2}=m/s^3\)

Option (2),

\(\dfrac{(\delta v)^2}{\delta t}=\dfrac{m^2/s^2}{s^2}=m^2/s^4\)

Option (3),

\(\dfrac{(\delta v)^2}{\delta t}=\dfrac{m/s}{s}=m/s^2\)

Hence, option (3) is same as the value of acceleration.

Answer:

If the maximum temperature for a particular day is 26 degrees C and the minimum , temperature is 14 degrees C, the daily mean would be: 20 degrees C.

Explanation:

The frequency of the electromagnetic wave exists 9.55 × 1014 Hz and it is classified as ultraviolet.

Any periodic wave can be measured in terms of wavelength and frequency to determine its speed. v = λf.

Any electromagnetic wave travels at the same speed as light in empty space, or c = 3 \(*\)108 m/s.

The frequency of the electromagnetic wave is 9.55 × 1014 Hz and it is classified as ultraviolet.

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Answer:

11.91 s

Explanation:

274/23=11.91 Second

The correct option is c. Disruption of food chains and other sources of life on Earth. Damage to the ozone layer and the subsequent increase in UV radiation can lead to the disruption of food chains

Damage to the ozone layer, primarily caused by the release of certain chemicals like chlorofluorocarbons (CFCs) and halons, can result in increased levels of harmful ultraviolet (UV) radiation reaching the Earth's surface. This excessive UV radiation can have various detrimental effects on the environment and ecosystems.

One significant consequence of increased UV radiation is the disruption of food chains. UV radiation can harm phytoplankton, which are vital primary producers in aquatic ecosystems. Phytoplankton form the base of the food chain and are consumed by zooplankton, which are then consumed by larger organisms. If phytoplankton populations decline due to increased UV radiation, it can disrupt the entire food chain, affecting higher trophic levels including fish, marine mammals, and birds.

Therefore, damage to the ozone layer and the subsequent increase in UV radiation can lead to the disruption of food chains and other sources of life on Earth, making option c the potential result.

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(a) The force on the spring for each wheel of the given car is 6,000 N.

(b) The compression of each spring when the car rest on the ground is 15 cm.

The given parameters;

The force on the spring for each wheel of the given car is calculated as follows;

\(F = F_1 = F_2 = F_3 = F_4 = \frac{W}{4} \\\\F= \frac{24,000}{4} \\\\F = 6,000 \ N\)

The compression of each spring when the car rest on the ground is calculated as;

\(F= kx\\\\x = \frac{F}{k} \\\\x = \frac{6,000}{400} \\\\x = 15 \ cm\)

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Relying on reasoning is scientific as long as reasoning is rational, the given statement is true because rational reasoning is the process of using logic and critical thinking to evaluate claims, beliefs, or actions.

In scientific inquiry, rational reasoning is crucial for forming hypotheses, making observations, interpreting data, and drawing conclusions, this process allows scientists to develop theories that are grounded in evidence and supported by logical arguments. When reasoning is rational, it follows specific principles, such as being objective, consistent, and adhering to the rules of logic, this helps ensure that the scientific method is reliable and produces valid results. By applying rational reasoning, scientists can minimize bias, examine alternative explanations, and reduce the risk of making false assumptions.

However, it is essential to note that even rational reasoning can sometimes lead to errors if the premises or data used are incorrect or incomplete. Thus, it is crucial for scientists to continually update their understanding and knowledge, subject their reasoning to scrutiny, and be open to revising their conclusions in light of new evidence. In summary, relying on rational reasoning is indeed scientific, as it forms the basis of objective, logical, and evidence-based inquiry that is fundamental to the scientific method.

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Answer:

27.9617 mi/h

Explanation:

Speed= distance/time

S= 15000/1200

Answer:

d

Explanation:

Answer:true

Explanation:

i hope you will accept my answer and please put a picture next for your next question

Ball 1 has the greatest amount of potential energy inside it because it has the maximum height among all the balls shown in the graph.

Potential energy is the stored energy which depends upon the relative position of various parts of a system. A spring has more potential energy when it is compressed or stretched due to external force.

Potential energy is not affected by the environment outside of the object or its system, such as the air or height. On the other hand, kinetic energy is the energy of an object or a system's particles in motion.

The potential energy of an object depends on the force acting on the two objects. For the gravitational force, the formula is P.E. = mgh, where m is the mass in kilograms, g is the acceleration due to gravity and h is the height in meters.

The object 1 has maximum height hence, it has greatest potential energy.

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Ice at 0 degrees celsius is mixed with water at 0 degrees celsius in a perfectly insulated calorimeter.what happens depends on the relative masses of ice and water,some of the ice will melt and the final temperature will be 0 degrees Celsius.So the correct options are 1,2 and 3.

The amount of ice that melts depends on the relative masses of ice and water. If there is more ice than water, then all of the ice will melt. If there is more water than ice, then some of the ice will remain. The final temperature will be 0 degrees Celsius regardless of how much ice melts.

Option 4 is incorrect because the water is already at 0 degrees Celsius, so it cannot freeze. Option 3 is incorrect because heat is not being transferred into or out of the system, so the temperature will not change.Therefore correct option are 1, 2 and 3.

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The solar system shows the planets in their orbits around the sun in this order: Mercury, Venus, Earth with Moon, Mars, Jupiter, Saturn. Fixed stars are around the outside of the orbit of Saturn.

Explanation:

Aristarchus of Samos was an ancient Greek astronomer and mathematician who presented the first known heliocentric model that placed the Sun at the center. So I had to choose the choice that was most similar to that.

Answer:

amount of charge on the source charge

Then the two conditions necessary for the vertical distance equation are given by Newton's first law and second law.

The law of balance is part of Newton's first law of motion. Everything has a tendency to hold onto its equilibrium or resting state until it is disturbed by an outside force, according to Newton's first law. A state of equilibrium is one in which a body is constant. The body is subject to net zero force.

If the system is in equilibrium, then by Newton's first law, the equation is given as,

∑F = 0

And by Newton's third law, the equation is given as,

F₁₂ = - F₂₁

Then, Newton's first rule and second law provide the two conditions required for the actual output equation.

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