What is the % uncertainty from 0.36mm to meters
Please could i have a good explanation
- my teacher says to not half the resolution if that helps

Answer:

An element is a pure substance and is made of only one type of atom; it cannot be broken down into a simpler substance.

Collisions between galaxies typically unfold over a period of millions of years.

Galaxies are vast collections of stars, gas, and dust that are held together by gravity. When galaxies collide, the individual stars and gas clouds do not collide with one another. Instead, the gravitational forces between the galaxies cause them to distort each other's shape and pull material out into long streams. These tidal forces can trigger bursts of star formation, as gas clouds are compressed and collapse to form new stars. The actual collision process can take millions of years to complete, with the galaxies gradually merging together into a single, larger system.

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The mass flow rate of the pump is 2.8 kg/s.

Given the density of the oil (kerosene) to be ρ= 0.75 kg/L

The volume of oil is equal to 10,000 L1 L = 0.001 m³Volume of oil = 10,000 × 0.001 = 10 m³Density of oil = mass/volume ⇒ mass = density × volume

Let m be the mass of oil.

m = ρV = 0.75 × 10 = 7.5 kg

The time taken to empty the tank is 45 minutes. 1 minute = 60 seconds

The time taken is t = 45 × 60 = 2,700 seconds.

Let the mass flow rate be m′. The mass flow rate is defined as the mass of fluid flowing per unit time.m′ = m/t = 7.5/2,700 kg/s= 0.00278 kg/s

Therefore, the mass flow rate of the pump is 2.8 kg/s.

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Answer:

F+20Hz

Explanation:

A wide variety of producers, consumers, & decomposers can coexist in the ecosystem.

The variety of all living creatures on our world, known as biodiversity, has been disappearing at an alarming rate in recent years. This is largely due to human activities such changing land use, pollution, and climate change.

All living creatures and their interactions are represented by the term "biodiversity," which is short for biological diversity. Because of extinctions and the emergence of new species, biodiversity is always changing. Three types of diversity—species, genetic, and ecosystem—are frequently mentioned by scientists.

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Answer:

Several cm of lead

Explanation:

Answer:

Astral projection is a term used in esotericism to describe an intentional out-of-body experience that assumes the existence of a soul or consciousness called an "astral body" that is separate from the physical body and capable of travelling outside it throughout the universe.

Explanation:

Yeah

Answer:

2.605m

Explanation:

Using the formula for calculating Range (distance travelled in horizontal direction)

Range R = U√2H/g

U is the speed = 4.8m/s

H is the maximum height = ?

g is the acc due to gravity = 9.8m/s²

R = 3.5m

Substitute into the formula and get H

3.5 = 4.8√2H/9.8

3.5/4.8 = √2H/9.8

0.7292 = √2H/9.8

square both sides

0.7292² = 2H/9.8

2H = 0.7292² * 9.8

2H = 5.21

H = 5.21/2

H = 2.605m

Hence the height of the ball from the ground is 2.605m

a) The picture of the action from above and sketch the path of the car is shown below: We have to draw the two given velocity vectors where they occur on the path.  These are the 2 vectors: 25 m/s west 35 m/s north. The two given velocity vectors on the path are shown below:

b) The acceleration is given as a = (v2-v1)/t, where v2 is the final velocity, v1 is the initial velocity and t is the time. Given that the car is traveling west at 25 m/s and one minute later it is driving north at 35 m/s. Therefore the final velocity, v2 = 35 m/s and initial velocity, v1 = 25 m/s and time, t = 1 min = 60 seconds.

i) The graphical vector addition is shown below: Therefore, the approximate correct direction of average acceleration is towards the north-east.

ii) The chosen coordinate system is shown below:

Therefore, the component of velocity along the x-axis is 25 m/s (towards west) and the component of velocity along the y-axis is 35 m/s (towards north).Therefore, acceleration along x-axis, a_x = 0 and acceleration along y-axis, a_y = (v2 - v1)/t = (35-25)/60 = 1/6 m/s²Therefore, the average acceleration of the car over this one minute time interval is, a = (a_x² + a_y²)1/2 = (0² + (1/6)²)1/2 = 1/6 m/s².

iii) As magnitude and precise direction: The magnitude of acceleration, a = (v2 - v1)/t = (35-25)/60 = 1/6 m/s²The angle between the acceleration vector and the x-axis (in degrees) is given as tan⁻¹(a_y/a_x) = tan⁻¹(1/6/0) = 90°Therefore, the precise direction of average acceleration is towards north.

Therefore, the average acceleration of the car over this one minute time interval using the graphical vector addition is towards the north-east and as a magnitude and precise direction is towards the north. Also, the acceleration of the car over this one minute time interval with components relative to the chosen coordinate system is a_x = 0 and a_y = 1/6 m/s². The average acceleration in all the three cases is same and has a magnitude of 1/6 m/s² and the direction is towards the north.

Therefore, it is calculated that the average acceleration of the car over this one minute time interval is towards the north with a magnitude of 1/6 m/s² and is calculated by using three different methods. The chosen methods are graphical vector addition, components relative to a chosen coordinate system and as a magnitude and precise direction.

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Answer:

Frequency, f = 0.63 Hz

Period, T = 1.58 s

Speed of a wave, v = 1.34 m/s

Explanation:

The equation of a wave is given by :

\(y = 5 \sin (3x - 4t)\) ...(1)

y is in mm

x is in meters

t is in seconds

The general equation of a wave is given by :

\(y=A\sin(kx-\omega t)\) ...(2)

(i) Compare equation (1) and (2) we get :

\(k=3\\\\\omega=4\)

Since,

\(\omega=2\pi f\\\\f=\dfrac{\omega}{2\pi}\\\\f=\dfrac{4}{2\pi}\\\\f=0.63\ Hz\)

(ii) Period of wave is :

\(T=\dfrac{1}{f}\\\\T=\dfrac{1}{0.63}\\\\T=1.58\ s\)

(iii) Speed of a wave,

\(v=\dfrac{\omega}{k}\\\\v=\dfrac{4}{3}\\\\v=1.34\ m/s\)

Answer:

solar energy

Explanation:

Photovoltaics solar energy is a clean ,renewable source of energy that uses solar radiation to produce electricity

No option , The curler apply to the stone to bring it up to speed is  42.85 N.

F = 20*3/1.4 = 42.85 N

3 *3 = 2*u*9.8*40

u = 0.0114

Despite their similarities, distance and displacement have very different meanings, as do speed and velocity. Speed, a scalar quantity, describes "how quickly an object is travelling." You can think of speed as the rate at which an object travels a distance. An object moving quickly has a high speed and travels a fair distance in a brief period of time. In contrast, a slow-moving object travels a comparatively short distance in the same amount of time because of its low speed. Zero speed refers to an object that is completely stationary.

[Speed = Distance Time] is the general formula for calculating an object's speed. The SI speed unit is m/s.

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Answer:

convex lens and a concave mirror

Answer:

c on edge

Explanation:

Answer:

the pic is blur,btw can u type sweetie

Six examples in which Physics has been used in daily life include:

Physics plays a major role in transportation, from the design of cars and airplanes to the operation of trains and buses. Physics is also used in communications, from the design of telephone networks to the operation of the internet.

Physics is used to generate energy from various sources, such as fossil fuels, nuclear power, hydroelectric power, and wind power. Physics is used in medical imaging, such as X-rays, CT scans, and MRI.

Physics plays a major role in construction, from the design of buildings and bridges to the materials used in construction.  Physics is also used in entertainment, from the design of amusement park rides to the operation of video games.

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A football player kicks a football off a tee with a speed of 21 m/s at an angle of 51°, then the horizontal component of the velocity would be 15.58 m/s and the vertical component of the velocity would be 14.07 m/s.

It can be defined as the motion of any object or body when thrown from the earth's surface and follows any curved path under the effect of the gravitational force of the earth.

The horizontal component of the velocity = 21 × cos51 = 15.58 m/s

The vertical component of the velocity = 21 × sin51 = 14.07 m/s

Thus, the horizontal component of the velocity would be 15.58 m/s and the vertical component of the velocity would be 14.07 m/s.

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A cannonball is shot from the top of a 47.8 m high hill at a speed of 53.7 m/s. The height then is 61.81 m/s.

The motion of an object with constant acceleration is described by a set of equations known as kinematic equations. Integrals, derivatives, and rates of change must all be understood in order to solve kinematics equations.

Velocity is the rate and direction of an object's movement, whereas speed is the time rate at which an object is moving along a path. In other words, velocity is a vector, whereas speed is a scalar value.

The kinematic equation is:

v² = u² + 2gs (a = g)

Where u is the initial velocity, a is the acceleration, and v is the velocity after the time period t.

(53.7)² + 2 x 9.8 x 47.8 m

Therefore, the height is 61.81 m/s.

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it’s 144.2 I have it in my notes from when I was in school!!!!

Answer:

my only true question is b

The speed of the satellite at perigee is 7074.27 m/s

What is satellite?
An object that has been placed into orbit in space on purpose is known as a satellite as well as artificial satellite. Most satellites, with the exception of passive satellites, have a means of generating electricity for the equipment they carry, such as solar panels as well as radioisotope thermoelectric generators (RTGs). The majority of satellites also have transponders, which are a type of ground station communication system. The most common satellites, small CubeSats, use a standardised bus to reduce costs and labour. Satellites of a similar type can cooperate with one another to form constellations. Satellites are made to be as light and durable as possible due to the high cost of space launch. Numerous transponders, with a bandwidth of dozens of megahertz, are carried by the majority of communication satellites, which are radio relay channels in orbit.

The speed of the satellite at perigee can be calculated using the equation of conservation of energy:
e = (½) mv2 - G(Mm/r)

Where e is the total energy of the satellite, m is its mass, v is its velocity, G is the gravitational constant, M is the mass of the Earth, and r is its distance from the Earth's center.

At apogee, the total energy of the satellite is:
e1 = (½) mv12 - G(Mm/r1)

At perigee, the total energy of the satellite is:
e2 = (½) mv22 - G(Mm/r2)

Equating the two expressions, we get:
(½) mv12 - G(Mm/r1) = (½) mv22 - G(Mm/r2)

Substituting the given values, we get:
(½)(6260 m/s)2 - G(Mm/2500 km) = (½) mv22 - G(Mm/500 km)

Rearranging the equation, we get:

mv22 = (½)(6260 m/s)2 - G(Mm/2500 km) + G(Mm/500 km)

Taking the square root of both sides, we get:
v2 = √[(½)(6260 m/s)2 - G(Mm/2500 km) + G(Mm/500 km)]

Finally, we get:
v = √[(½)(6260 m/s)2 - G(Mm/2500 km) + G(Mm/500 km)]

Therefore, the speed of the satellite at perigee is:
v = √[(½)(6260 m/s)2 - G(Mm/2500 km) + G(Mm/500 km)] ≈ 7074.27 m/s

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Answer:

option c is the right answer

Answer:

D, B, A, C

Explanation:

The more lines, the greater the charge.

To stay in a circular orbit at a specific distance, the satellite must have a speed that is three times the square root of that distance. Therefore, the correct answer is option B.

The speed of a satellite in a circular orbit around a planet can be determined by equating the centripetal force required to keep the satellite in orbit with the gravitational force of the planet on the satellite.

The centripetal force is given by \(F = mv^2/r\), where m is the mass of the satellite, v is its speed, and r is the distance from the center of the planet.

The gravitational force is given by \(F = G(Mm)/r^2\), where G is the gravitational constant, M is the mass of the planet, and m is the mass of the satellite. Equating these two forces and solving for v gives \(v = \sqrt{(GM/r)}\)

Substituting the given values for g = 9 m/s² and r, we get \(v = \sqrt{(gr)}\), which simplifies to \(v = \sqrt{(9r)} = 3\sqrt{r}\).

Therefore, the correct answer is v = 3r. This means that the speed of the satellite must be three times the square root of the distance from the center of the planet to remain in a circular orbit at that distance.

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Once the object is dropped ,The only force acting on it is gravity.so acceleration due to gravity is 9.8 m/\(s^{2}\).

Given,

Initial velocity = u = 0

Time taken = t = 0

Acceleration = g = 9.8 m/\(s^{2}\)

Using \(3^{rd}\) equation of motion ,

v = u + at

v =( 0 )+ (9.8) *(3)

v = 29.4

v≈ 30 m/s

So, the speed of object is 30 m/s.

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The magnetic force on a charged particle in a magnetic field is zero. Here are the conditions that apply:

1. The particle is stationary: If the charged particle is not moving, there will be no magnetic force acting on it. This is because the magnetic force is given by the equation F = q(v x B), where F is the magnetic force, q is the charge, v is the velocity, and B is the magnetic field. If the velocity (v) is zero, the force will also be zero.

2. The particle moves parallel or antiparallel to the magnetic field: If the charged particle moves in the same direction or opposite to the magnetic field, the magnetic force will be zero. This is because the force equation includes the cross product (v x B), and the cross product of two parallel or antiparallel vectors is zero.

3. The particle has no charge: If the particle is neutral, meaning its charge (q) is zero, there will be no magnetic force acting on it, regardless of its motion or the magnetic field's direction. This is because the force equation has q as a factor, and any value multiplied by zero equals zero.

In summary, the magnetic force on a charged particle in a magnetic field is zero if the particle is stationary, moves parallel or antiparallel to the magnetic field, or has no charge.

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Answer: The answer is A

Explanation: I took that test already

Compounds 1 and 3 are ionic. Because Ionic compounds are composed of oppositely charged ions that are attracted to one another, they require more energy to melt than covalent bonds. Hence, option A is correct.

Melting point of a substance is the temperature at which it converts from solid to liquid state. Melting point depends on the bond strength, molecular mass, temperature and pressure.

As the bond strength increases, the more energy have to be applied to weaken the intermolecular forces in solid to convert to liquid form. Ionic bonds are the strongest bond type. Thus, ionic compounds have highest melting point.

Therefore, the compounds 1 and 3 having highest melting point are ionic compounds. Remaining two with lower melting point are covalent. Therefore, option A is correct.

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My understanding of the concept of when a baby is considered alive is based on the medical, legal, and ethical standards provided by the scientific and medical communities, and it is not based on personal beliefs or opinions.

The determination of when a baby is considered alive is a complex and nuanced issue that is influenced by a variety of factors, including medical, legal, religious, and ethical considerations.

Therefore, it is important to consult with qualified professionals in each area to gain a better understanding of this topic.

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Complete Question:

What I your view on when the baby I alive? What standard or standard are you using to form your opinion?

Answer:

If they both start at the same height then most likely that means that each has an intical velocity  and a net force sooooo ball A 19.6

Explanation:

Answer: The mass of ball C is greater than the mass of ball A but less than the mass of ball B.

Answer:

An image of the cosmic microwave background radiation, taken by the European Space Agency (ESA)'s Planck satellite in 2013, shows the small variations across the sky (Image credit: ESA/Planck Collaboration) The cosmic microwave background (CMB) is thought to be leftover radiation from the Big Bang, or the time when the universe began

Explanation:

The total equivalent resistance of the three resistors connected in parallel is 3/2 Ω or 1.5 Ω.

When resistors are connected in parallel, the total equivalent resistance (Rₑ) can be calculated using the formula:

1/Rₑ = 1/R₁ + 1/R₂ + 1/R₃ + ...

In this case, we have three resistors with values of 3 Ω, 4 Ω, and 12 Ω. Plugging in these values into the formula, we get:

1/Rₑ = 1/3 Ω + 1/4 Ω + 1/12 Ω

To simplify this expression, we find a common denominator:

1/Rₑ = (4/12) Ω + (3/12) Ω + (1/12) Ω

Combining the fractions, we have:

1/Rₑ = (4 + 3 + 1)/12 Ω = 8/12 Ω = 2/3 Ω

To find Rₑ, we take the reciprocal of both sides:

Rₑ = 3/2 Ω

Therefore, the total equivalent resistance of the three resistors connected in parallel is 3/2 Ω or 1.5 Ω.

In parallel connection, the reciprocal of the total resistance is equal to the sum of the reciprocals of the individual resistances. This means that as more resistors are added in parallel, the total resistance decreases. In this case, the combination of the resistors results in a lower equivalent resistance than any individual resistor in the circuit.

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Explanation:

satellite A, because of its closest orbit.

The furanose form of the fructose is generated by formation of a hemiketal involving the attack of the hydroxyl group on carbon 5 with carbon 2.

Furanose can be drawn in the different structures such as Haworth structures and Fischer projections. But arrangement of atoms in the plane of the ring and Ch2Oh groups outside the plane of the ring can be clearly understood from Haworth structures. By looking at the Haworth furanose ring, one can observe that the −OH group on the second carbon is placed in two different ways on the plane of the ring. If hydroxyl group −OH is placed below the ring then it can be called as alpha form. If the −OH group is placed above ring, then it is named as beta furanose. These two forms are similar in all the respects except in stereo-geneticity. Furanose can form pyranose rings also by hemiketal formation of carbonyl of second carbon and hydroxyl of sixth carbon. This results in the formation of pyranose form of fructose. But predominant form of fructose among both is furanose rings. In both these form anomers are possible.

The furanose form of the fructose is generated by formation of a hemiketal involving the attack of the hydroxyl group on carbon 5 with carbon 2.

(This generates five-member furanose ring typical of fructose.)

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