the specific heat of water is 4.18 j/g•°c. how much heat does 225.0 g of water release when it cools from 85.5°c to 50.0°c? use the formula q = mct.

Answer:

4 meters per second

Explanation:

Answer:

______________________________

use tall safety and position hoist arms

Answer:

= 201.53 meters

Explanation:

A car started from rest and accelerated at 9.54 m/s^2 for 6.5 seconds. How much distance was covered by the car?

Use the formula  d = \(\frac{at^{2} }{2} ,\)

where d is the distance, t is the time and "a" is the acceleration.
\(d=\frac{9*54*6*5^{2} }{2} = 201.53 m\)

One mystery that was exhibited by the motions of the sun and a few other sky objects was the apparent retrograde motion of the planets.

In ancient times, people observed that the planets (including Mars, Jupiter, and Saturn) would sometimes appear to move backward in the sky for a few weeks or months before resuming their forward motion.

This retrograde motion was difficult to explain using the geocentric model of the universe, in which the Earth was considered to be the center of the cosmos and all the other celestial bodies revolved around it. It wasn't until the heliocentric model was proposed, with the sun at the center of the solar system, that this mystery could be explained as a result of differences in the orbital speeds and distances of the planets.

Learn  more about retrograde motion here

brainly.com/question/15902267

#SPJ4

Answer:

Paul found that fast food burgers cause penguins to lose weight.

Explanation:

Answer:

\(559\).

Explanation:

Integrate \(a(t)\) with respect to time \(t\) to find an expression for velocity:

\(\begin{aligned} v(t) &= \int a(t)\, d t \\ &= \int (6\, t + 8)\, d t && (\text{power rule}) \\ &= 3\, t^{2} + 8\, t + C_{v} \end{aligned}\).

Note that since this integral is indefinite, the expression for \(v(t)\) includes a constant \(C_{v}\).

Find the value of \(C_{v}\) using the fact that \(v(0) = 2\). Specifically, substitute \(t = 0\) into the expression \(v(t) = 3\, t^{2} + 8\, t + C_{v}\) and solve for \(C_{v}\!\):

\(v(0) = 3\, (0)^{2} + 8\, (0) + C_{v} = C_{v}\).

\(v(0) = 2\).

\(C_{v} = 2\).

In other words, \(v(t) = 3\, t^{2} + 8\, t + 2\).

Similarly, integrate \(v(t)\) with respect to \(t\) to find an expression for position:

\(\begin{aligned} s(t) &= \int v(t)\, d t \\ &= \int (3\, t^{2} + 8\, t + 2)\, d t\\ &= t^{3} + 4\, t^{2} + 2\, t + C_{s} \end{aligned}\).

Similarly, find the value of constant \(C_{s}\) using the fact that \(s(0) = 6\):

\(s(0) = (0)^{3} + 4\, (0)^{2} + 2\, (0) + C_{s} = C_{s}\).

\(s(0) = 6\).

\(C_{s} = 6\).

In other words, \(s(t) = t^{3} + 4\, t^{2} + 2\, t + 6\). Substitute in \(t = 7\) and evaluate to find the position of the particle at that moment:

\(s(7) = 7^{3} + 4\, (7)^{2} + 2\, (7) + 6 = 559\).

The pοsitiοn of the particle at time t = 7 is 559 units.

Tο find the pοsitiοn at time t = 7, we need tο integrate the given acceleratiοn functiοn tο οbtain the velοcity functiοn and then integrate the velοcity functiοn tο οbtain the pοsitiοn functiοn.

Given:

Acceleratiοn functiοn: a(t) = 6t + 8

Initial pοsitiοn: s(0) = 6

Initial velοcity: v(0) = 2

First, let's integrate the acceleratiοn functiοn tο οbtain the velοcity functiοn:

v(t) = ∫(a(t)) dt

= ∫(6t + 8) dt

= 3t^2 + 8t + C

Tο find the cοnstant οf integratiοn (C), we can use the initial velοcity v(0) = 2:

2 = 3(0)² + 8(0) + C

C = 2

Sο, the velοcity functiοn becοmes:

v(t) = 3t² + 8t + 2

Next, let's integrate the velοcity functiοn tο οbtain the pοsitiοn functiοn:

s(t) = ∫(v(t)) dt

= ∫(3t² + 8t + 2) dt

= t³ + 4t² + 2t + C'

Tο find the cοnstant οf integratiοn (C'), we can use the initial pοsitiοn s(0) = 6:

6 = (0)³ + 4(0)² + 2(0) + C'

C' = 6

Sο, the pοsitiοn functiοn becοmes:

s(t) = t³ + 4t² + 2t + 6

Finally, we can find the pοsitiοn at time t = 7:

s(7) = (7)³+ 4(7)² + 2(7) + 6

= 343 + 196 + 14 + 6

= 559

Therefοre, the pοsitiοn at time t = 7 is 559 units.

Learn more about particle

https://brainly.com/question/13874021

#SPJ4

Answer:

Oh for number this is the one?

These orbital elements can be calculated using standard methods in orbital mechanics.

To determine the orbital elements and other parameters of the spacecraft, we first need to convert its position and velocity vectors from Cartesian coordinates to Keplerian elements. We can do this using the following steps:

Calculate the specific angular momentum vector h:

h = ri x Vi

where ri and Vi are the position and velocity vectors, respectively, in Cartesian coordinates.

h = (3Ro + 5Ro) (-2.52c + 2y) - (-3.2c + 2y + 2.52 km/s) (5Ro)

h = 5.2 Ro c + 15.16 km/s y

Calculate the magnitude of the specific angular momentum:

| h | = sqrt(h^2)

| h | = sqrt[(5.2 Ro c)^2 + (15.16 km/s y)^2]

| h | = 15.94 km^2/s

Calculate the inclination angle i:

i = cos^-1(hz / | h |)

where hz is the z-component of the specific angular momentum vector.

hz = 15.16 km/s

i = cos^-1(15.16 km/s / 15.94 km^2/s)

i = 3.86°

Calculate the node vector N:

N = k x h / | k x h |

where k is the unit vector in the z-direction.

k = (0, 0, 1)

N = k x h / | k x h |

N = (-15.16 km/s, 5.2 Ro c, 0) / sqrt[(5.2 Ro c)^2 + (15.16 km/s)^2]

N = (-0.888, 0.306, 0)

Calculate the argument of periapsis w:

w = cos^-1(N · e / | N |)

where e is the eccentricity vector.

e = [1/μ ((V^2 - μ/| r |) r - (r · V) V)]

where μ is the gravitational parameter of the Earth, V is the velocity vector in Cartesian coordinates, and r is the position vector in Cartesian coordinates.

μ = 3.986004418 x 10^5 km^3/s^2

| r | = sqrt[(3Ro + 5Ro)^2] = 8Ro

V = (-3.2c + 2y + 2.52 km/s)

r = (3Ro + 5Ro)

e = [1/3.986004418 x 10^5 km^3/s^2 ((2.52 km/s)^2 - (3.986004418 x 10^5 km^3/s^2 / 8Ro)) (3Ro + 5Ro) - ((3Ro + 5Ro) · (-3.2c + 2y + 2.52 km/s)) (-3.2c + 2y + 2.52 km/s)]

e = (0.715, -0.439, 0)

w = cos^-1((N · e) / | N |)

w = cos^-1((-0.888 x 0.715) + (0.306 x -0.439))

w = 135.9°

Calculate the eccentricity magnitude e:

e = sqrt(e^2)

e = sqrt(0.715^2 + (-0.439)^2)e = 0.84

Calculate the semi-major axis a:

a = (2 / | r | - (V · V))^-1

a = (2 / 8Ro - (2

Learn more about orbital mechanics

brainly.com/question/30773693

#SPJ11

The frequency of the light is 1.3 × 10⁷ Hz and wavelength of the light is 1.3 x 10⁷ nm

The frequency of a repeated event is its number of instances per unit of time. In certain cases, it is also referred to as temporal frequency or ordinary frequency to underline differences with spatial and angular frequencies, respectively.

A waveform signal that is carried in space or down a wire has a wavelength, which is the separation between two identical places (adjacent crests) in the consecutive cycles. This length is often defined in wireless systems in metres (m), centimetres (cm), or millimetres (mm) (mm).

to learn more about the frequency and wavelength go to -
https://brainly.com/question/10728818
#SPJ4

The mass of the object  when  a net force of 125 n is applied to a certain object is  5.2 kg

Newton's second law in one dimension states that the net force acting on an object is equal to the product of the object's mass and its acceleration. In mathematical form, the law is expressed as:

F = ma

Where F is the net force, m is the mass of the object, and a is the acceleration of the object.

In this case, we are given that a net force of 125 n is applied to an object and that the object accelerates with an acceleration of 24.0 m/s2. We are asked to find the mass of the object.

We can solve for the mass using the equation above:

m = F / a

= 125 n / 24.0 m/s2

= approximately 5.2 kg

Therefore, the mass of the object is approximately 5.2 kg.

To know more about  mass visit : brainly.com/question/6782334

#SPJ4

Answer:

Vectors have both magnitude and direction

Explanation:

Vectors show how strong the force in because the bigger the arrow, the stronger the force.  Also, it obviously shows direction because its an arrow.

Vectors have magnitude and direction while scalars have only magnitude. Vectors are shown using an arrow above the symbol of the quantity and are often printed in bold face.

In Physics, we generally recognize two categories of quantities; vector quantities and scalar quantities.

Vector quantities have both magnitude and direction. It is normal to print vectors in bold face, with an arrow written above the symbol of the quantity. The arrow points in the direction of the vector.

The following are true regarding vectors;

Learn more: https://brainly.com/question/13322477

Answer:

8.85

Explanation:

The computation of the charge that must place on them in order to create 1000 N/C field between the plates is shown below:

We know that

E = (Q/A) ÷ E_o

1000 = Q ÷ 0.01×8.85× 10^-12

Q = 8.85 × 10^-12

So,

The answer is 8.85

The above formula should be applied so that the correct value could come

And, the same would be relevant

Answer:

8.85

Explanation:

acellus

To cancel the polarization of a NaLi molecule, an electric field of magnitude 5.33 V/Å needs to be applied along the molecular axis in the direction opposite to the polarization.

To double the polarization of a NaLi molecule, an electric field of magnitude 10.66 V/Å needs to be applied along the molecular axis in the direction of the polarization.

The polarization of a NaLi molecule is due to the difference in electronegativity between sodium and lithium. Sodium is more electropositive than lithium, which means that it has a stronger affinity for electrons.

This means that the electrons in the NaLi molecule are more likely to be found closer to the sodium atom than the lithium atom.

The electric field will exert a force on the electrons in the NaLi molecule, trying to pull them away from the sodium atom and towards the lithium atom. If the electric field is strong enough, it will be able to cancel the polarization of the molecule.

The magnitude of the electric field needed to cancel the polarization of a NaLi molecule can be calculated using the following formula:

E = 2qd / e

where:

E is the magnitude of the electric field

q is the charge of an electron

d is the inter-atomic distance

e is the permittivity of free space

In this case, the magnitude of the electric field needed to cancel the polarization of a NaLi molecule is:

E = 2 * (1.602 * 10^-19 C) * (3.0 * 10^-10 m) / (8.854 * 10^-12 C^2 / N m^2) = 5.33 V/Å

To double the polarization of a NaLi molecule, the electric field would need to be twice as strong. This means that the magnitude of the electric field would need to be 10.66 V/Å.

To learn more about polarization click here: brainly.com/question/29217577

#SPJ11

Answer:

It allows people in different places and different countries to use the same units

Explanation:

Answer:

[Ne] 3s² 3p¹

Explanation:

Answer: 1s2 2s2 2p6

Explanation:

The aluminum ground state would be 1s2 2s2 2p6 3s2 3p1.

However, the Aluminum Ion electron configuration would be 1s2 2s2 2p6 as it has LOST 3 electrons to have the noble gas configuration of Neon (Ne)

Wear protective gear, such as helmets, protective pads, and other gear.

Warm up and cool down.

Know the rules of the game.

Watch out for others.

Don't play when you're injured.

Answer:

  T = (99.78 ±0.05) ºC

Explanation:

This problem refers to the procedure to perform the measurements and their correct reporting.

Suppose that the thermometer used has an appreciation of 0.1ºC and the values ​​of 5 measurements resulted in

 #     T (ºC)

 1      99.8

 2     99.7

 3     99.7

 4     99.8

 5     99.9

the processing calculate mean value

   T_average = ∑ \(T_{i}\) / n

   T_average = (99.8 + 99.7 + 99.7 + 99.8 + 99.9) / 5

   T_average = 99.78ºC

the absolute error or uncertainty of the measurement is half the appreciation of the instrument

       ΔT = ± 0.05ºC

so the result must be written

        T = (99.78 ±0.05) ºC

The terms specific to the observer are e, f, and g. The ecliptic is the path that the Sun appears to follow across the sky throughout the year as viewed from Earth.

The horizon is an imaginary line that marks the point where the sky and the Earth's surface seem to meet. The zenith is an imaginary point directly overhead from the observer's location.

The celestial equator is an imaginary line that runs around the celestial sphere, dividing it into two hemispheres. The north celestial pole is the point directly above the observer's north horizon. The nadir is an imaginary point directly below the observer's location.

To know more about celestial sphere here

https://brainly.com/question/13196153

#SPJ4

27.5 m/s. If the average force exerted on the arrow by the bow was increased 3 times and the arrow was accelerated over the same distance

Answer:

the sand will heat up faster than the water

Explanation:

water has slow heat conduction

and sand had high heat conduction

Answer:

Its C

Explanation:

Answer:

C) to examine whether one variable causes a change in another

The acceleration of a bike which increases its speed from 0 to 40 ft/s in 4 seconds will be 3 m/s².

Given, initial speed (u) = 0

Final speed (v) = 40 ft/s = 12 m/s

Time taken = 4 seconds

From the equation v = u + at, we have

12 = 0 + a x 4

12 = 4a

a = 3 m/s²

The equation a = v/t denotes acceleration (a), which is the change in velocity (v) over the change in time (t). This enables you to calculate the change in velocity in meters per second squared (m/s²). Since acceleration is a vector quantity, both its magnitude and its direction are included.

To learn more about acceleration visit:

brainly.com/question/13154163

#SPJ1

Answer:

Zero

Explanation:

The net force acting on an object moving with constant velocity is zero. This is an accordance with the Newton's first law of motion.

Newton's first law of motion states that a body will continue in its state of rest or constant motion unless it is acted upon by an external force.

Since this body is moving with uniform motion, it is not accelerating. When a body is acceleration, the net force on it is not zero.

But this one is moving with uniform motion. The net force on the body is balanced and zero.

The cue ball's final velocity is 0.453 m/s, or 0.90 m/s.

The pace at which an item goes in one direction is known as its velocity. As the velocity of a car driving northward on a highway or the pace at which a rocket takes off. The vector quantity velocity (v), denoted by the formula v = s/t, quantifies deformation (or shift in position, s), over change in time (t).

The displacement that such an object or particles experiences with regards to time is expressed vectorially as velocity. The meters per second (m/s) is the accepted unit of velocity profile (sometimes known as speed).

Let "v" represent the ball's ultimate speed.

Apply the law of linear momentum conservation.

Total initial momentum is = Total final momentum

=(0.17 x 1.3) + (0.16 x 0) = (0.17 x v) + (0.16 x 0.90)

0.221 = 0.17v + 0.144

0.17 v = 0.221 - 0.144

v = (0.077) / (0.17)

v = 0.453 m/s

To know more about velocity visit:

https://brainly.com/question/30559316

#SPJ1

The fossil record shows that prokaryotes were the first living things. Therefore, choice D is right.

Prokaryotes, which predated plants and animals by billions of years, are now known to have been the first cellular life forms on Earth. The age of the Earth and its moon is estimated to be 4.54 billion years.

Pro means "before" in Latin. They are typically single-celled creatures but can occasionally be multicellular. Prokaryotes are said to have been the first living things discovered on Earth. They are separated into two groups: bacteria and archae. They lack organelles that are membrane-bound, yet all of the water-soluble parts are still present in the cytoplasm without membrane. Because of their basic characteristics, a fossil suggests that they are prokaryotes.

To know about prokaryotes

https://brainly.com/question/15329345

#SPJ4

The complete question is

The first organisms evolved on Earth around 4 billion years ago. The fossil record indicates that the first organisms were which of the following?. A) eukaryotes. B) plastids. C) mitochondria. D) prokaryotes

Answer:

\( \boxed{\sf Distance \ travelled = 62.5 \ m} \)

Given:

Initial velocity (u) = 25 m/s

Final velocity (v) = 0 m/s (Rest)

Time taken (t) = 5 seconds

To Find:

Distance travelled by car (s)

Explanation:

From equation of motion of object moving with uniform acceleration in straight line we have:

\( \boxed{ \bold{s = (\frac{v + u}{2} )t}}\)

By substituting value of v, u & t in the equation we get:

\( \sf \implies s = ( \frac{0 + 25}{2} ) \times 5 \\ \\ \sf \implies s = \frac{25}{2} \times 5 \\ \\ \sf \implies s = 12.5 \times 5 \\ \\ \sf \implies s = 62.5 \: m\)

\( \therefore\)

Distance travelled by car (s) = 62.5 m

The distance  car travel during that time is 62.5 meter.

Acceleration is the rate at which speed and direction of velocity vary over time. A point or object going straight ahead is accelerated when it accelerates or decelerates.

Even if the speed is constant, motion on a circle accelerates because the direction is always shifting. Both effects contribute to the acceleration for all other motions.

Initial velocity (u) = 25 m/s

As the car becomes rest, final velocity (v) = 0 m/s (Rest)

Time taken (t) = 5 seconds.

The deceleration of the car: a = (initial speed - final speed)/time interval

= ( 25 m/s - 0 m/s)/5 second

= 5 m/s²

The distance  car travel during that time = ut - at²/2

= 25 × 5.0 meter - (5×5²/2) meter

= 62.5 meter.

Hence, the distance  car travel during that time is  62.5 meter.

Learn more about acceleration here:

brainly.com/question/12550364

#SPJ2

Answer:

4 target heart rate. is the answer

Explanation:

hope its right

The amount of work done (output energy) by the coal power station at the given efficiency is 4.8 x 10¹¹ J .

The efficiency of a machine indicates how well its input energy is converted to useful output energy or work.

The efficiency of a machine is simply the ratio of output energy to input energy.

E = output energy / input energy x 100%

The given parameters;

40% = output energy / (1.2  x 10¹²)   x 100%

40/100 = output energy / (1.2  x 10¹²)

0.4(1.2  x 10¹²) = output energy

4.8 x 10¹¹ J = output energy

Learn more about output energy here: https://brainly.com/question/29247736

#SPJ1