A car travels 2500 m in 8 minutes. Calculate the speed at which the car travelled

The modern atomic theory is likely to continue evolving as new discoveries are made, particularly in areas such as dark matter, quantum mechanics, computational power and simulation techniques

It is likely that the modern atomic theory will continue to be updated as new observations and discoveries are made in the field of atomic and subatomic particles.

One area where there is ongoing research is in the study of dark matter and dark energy, which make up a large portion of the universe but cannot be directly observed. Understanding the nature of these phenomena could lead to new insights into the behavior of particles at the atomic level.

Another area of ongoing research is in the study of quantum mechanics and its application to atomic and subatomic particles. As technology advances and scientists are able to study these particles in greater detail, it is likely that our understanding of quantum mechanics will continue to evolve.

Additionally, advancements in computational power and simulation techniques may allow scientists to simulate and predict the behavior of atoms and molecules with greater accuracy, leading to further refinements of the modern atomic theory.

Learn more about modern atomic theory here

brainly.com/question/25176189

#SPJ4

The mass of a pure platinum disc can be gotten by multiplying the density with the volume.

Therefore the mass is 2418.2 grams or 2.4182 kilograms.

A body's mass is an inherent quality. Prior to the discovery of the atom and particle physics, it was widely considered to be tied to the amount of matter in a physical body.

The kilogram is the primary mass unit in the SI.

The resistance of the body to acceleration in the presence of a net force can be measured as mass.

Due to the lower gravity on the Moon, an object would weigh less than it does on Earth while maintaining the same mass. This is due to the fact that mass, coupled with gravity, determines the strength of weight, which is a force.

Learn more about mass here https://brainly.com/question/28021242

#SPJ1

What is the mass of a pure platinum disk with a volume of 113 cm3? The density of platinum is 21.4 g/cm3.

Give your answer in grams and kilograms.

Answer:

U calculate from CREST to REST POSITION

The hiker travelled 4.02 km North/South and 4.74 km East/West during her hike.

This question involves vector addition, the resolution of vectors, the use of bearings, and trigonometry in the calculation of the hiker's movement.

This may appear to be a difficult problem, but with some visual aid and the proper use of mathematical formulas, the issue can be addressed correctly.

Resolution of VectorThe resolution of a vector is the process of dividing it into two or more components.

The angle between the resultant and the given vector is equal to the inverse tangent of the two rectangular components.

Angles will always be expressed in degrees in the solution.

The sine, cosine, and tangent functions in trigonometry are denoted by sin, cos, and tan.

The tangent function can be calculated using the sine and cosine functions as tan x = sin x/cos x. Also, in right-angled triangles, Pythagoras’ theorem is used to find the hypotenuse or one of the legs.

Distance Travelled North/SouthThe hiker traveled North for the first part of the hike and South for the second.

The angles that the hiker traveled in the first part and second parts are 53 degrees and 17 degrees, respectively.

The angle between the two is (180 - 53 - 17) = 110 degrees.

The angle between the resultant and the Northern direction is 110 - 53 = 57 degrees.

Using sine and cosine, we can calculate the north/south distance traveled to be 5 sin 57 = 4.02 km, and the east/west distance to be 5 cos 57 = 2.93 km.

Distance Travelled East/WestThe hiker walked East for the second part of the hike.

To calculate the distance travelled East/West, we must first calculate the component of the first part that was East/West.

The angle between the vector and the Eastern direction is 90 - 53 = 37 degrees.

Using sine and cosine, we can calculate that the distance travelled East/West for the first part of the hike is 5 cos 37 = 3.88 km.

To determine the net distance travelled East/West, we must combine this component with the distance travelled East/West in the second part of the hike.

The angle between the second vector and the Eastern direction is 17 degrees.

Using sine and cosine, we can calculate the distance traveled East/West to be 3 sin 17 = 0.86 km.

The net distance traveled East/West is 3.88 + 0.86 = 4.74 km.

Therefore, the hiker travelled 4.02 km North/South and 4.74 km East/West during her hike.

For more questions on travelled

https://brainly.com/question/750474

#SPJ8

The weight of the Mars Rover Curiosity on Earth and on Mars is 8820 N and 3330 N respectively.

The weight of an object is given by the product of its mass and the gravitational field strength at its location.

On Earth:

On Mars:

Therefore, the weight of the Mars Rover Curiosity on Earth and on Mars are 8820 N and 3330 N respectively.

More on weight of objects can be found here: https://brainly.com/question/12378369

#SPJ1

Explanation:

Those tools that helps to make our work easier ,faster and more convenient in our daily life it is called simple Machine.

NASA uses centrifuges to simulate the forces astronauts' bodies feel during a launch, and it does this by placing them in a pod near the outer edge of the centrifuge, which spins around and can simulate the equivalent of several times the gravitational acceleration g via centripetal force.

To simulate 5g, assuming the radial distance from the centrifuge's axis of rotation to the pod is 8.00 m,The formula for the centripetal acceleration is:a = v^2/r where v is the tangential velocity, and r is the radial distance between the pod and the axis of rotation.

The tangential velocity is proportional to the angular velocity, ω.

Therefore, the tangential velocity is:v = ωrThe period of rotation, T, is related to the angular velocity by:ω = 2π/T

The centripetal acceleration can be rewritten as:

\(a =\frac{ (ωr)^2}{r} = ω^2r\)

Therefore,a

\(= (ω^2)r =\frac{ v^2}{rT^2}\)

= \(\frac{4π^2r}{v^2}\)

\(=\frac{ 4\pi^2r}{ω^2r}\)

\(= \frac{x4\pi^2}{ω^2T^2 }\)

= \(\frac{4\pi^2}{ω^2}\)

= \(\frac{4\pi^2r}{(ωr)^2}\)

= \(\frac{4\pi^2r}{v^2}\)

Substituting for ω and r,

\(T^2 = \frac{4\pi^2r}{(ωr)^2}\)

\(=\frac{ 4\pi^2r}{v^2}\)

\(= \frac{4\pi^2r}{(ωr)^2T^2}\)

= \(\frac{4\pi^2r}{(4\pi^2g)}\)

rT^2 = 1/gT = sqrt(1/g) * rT = sqrt(1/9.8) * 8.00mT = 0.45 seconds

Therefore, to simulate 5g, the time for one rotation required is 0.45 seconds.

For such more question on velocity

https://brainly.com/question/80295

#SPJ8

Answer:

We are given the length, the mass and the density of the cylinder. First let us calculate for the volume by dividing the mass by the density.

volume = mass /density

where mass = 2.17 kg = 2170 g, therefore:

volume = 2170 g / (2.33 g/cm^3)

volume = 931.33 cm^3

We know that the volume of a cylinder has the formula:

volume = π r^2 h

since h = 16.8 cm, therefore calculating for radius:

931.33 cm^3 = π r^2 (16.8 cm)

r^2 = 17.646 cm^2

r = 4.2 cm

Hence the diameter (d) is:

d = 2 r

d = 8.4 cm

Explanation:

The diameter of the cylindrical rod is approximately 0.382 cm.

To find the diameter of the cylindrical rod, we can use the formula for the volume of a cylinder and then solve for the diameter.

The formula for the volume of a cylinder is:

V = π\(r^{2}\)h,

where V is the volume, r is the radius, and h is the height (or length) of the cylinder.

In this case, we know the length of the cylinder (h) is 16.8 cm. We need to find the radius (r) in order to calculate the diameter.

The mass of the cylinder can be related to its volume and density using the formula:

m = ρV,

where m is the mass, ρ is the density, and V is the volume.

Rearranging this formula, we can solve for V:

V = m / ρ.

Now we have two equations:

V = π\(r^{2}\)h,

V = m / ρ.

Setting these two equations equal to each other, we can solve for r:

π\(r^{2}\)h = m / ρ.

Substituting the given values:

π\(r^{2}\) * 16.8 cm = 2.17 kg / (2.33 g/\(cm^3\)).

Let's solve this equation for r:

\(r^{2}\) = (2.17 kg / (2.33 g/\(cm^3\))) / (π * 16.8 cm).

\(r^{2}\)  ≈ 0.036775 \(cm^2\).

Taking the square root of both sides:

r ≈ 0.191 cm.

Finally, we can find the diameter (d) by multiplying the radius by 2:

d ≈ 2 * 0.191 cm.

d ≈ 0.382 cm.

Therefore, the diameter of the cylindrical rod is approximately 0.382 cm.

To know more about diameter here

https://brainly.com/question/33294089

#SPJ2

The wave speed is 01 m/s, which can be calculated by using the formula:

wave speed distance between two successive maxima/time interval between two successive maxima

In this case, the distance between two successive maxima is given as 1.2m and the time

interval between two successive maxima is given as 12s.

So, the wave speed can be calculated as:

wave speed = 1.2m/12s = 0.1 m/s

It is worth mentioning that the wave speed is a scalar quantity, which means it has only magnitude and no direction. The given information is about the transverse wave which is a type of wave in which the oscillation is perpendicular to the direction of energy transfer

Learn more about oscillations here:

https://brainly.com/question/30111348

#SPJ4

Answer:

4.5 OHMS

Explanation:

This is the series circuit of arrangement so we add the resistance

1 + 1.5 + 2 =4.5 OHMS

We can't see the third point of the triangle. We're assuming there's nothing else connected up there, and you want the equivalent resistance between points A and B.

The 1 and the 2 are in series, so they form a single resistor of 3 ohms.

That's in parallel with the 1.5 ohmer, for an equivalent resistance between A and B of ==> 1 ohm .

The name and strength of the force holding the block up is 50 N upward - Normal force.

The given parameters:

The weight of the block acting downwards due to gravity is calculated as follows;

W = mg

where;

W = 5 x 10

W = 50 N (downwards)

Since the block is at rest, an a force equal to the weight of the block must be acting upwards. This force is known as normal reaction.

Fₙ = 50 N (upwards)

Thus, the name and strength of the force holding the block up is 50 N upward - Normal force.

Learn more about Normal force here: https://brainly.com/question/14486416

The block will remain on the table because the normal force balances with the weight of the block. The correct answer is  50 N upward normal force

From the diagram shown a 5.00-kilogram block at rest on a horizontal, frictionless table. The weight of the block will act downward which will be

Weight W = mg

let g = 10 m/\(s^{2}\)

W = 5 x 10

W = 50 N

The block will also produce an equal but in opposite direction of a normal force which is equal to the weight of the block. That is,

Normal force N = 50 N

The block will remain on the table because the normal force balances with the weight of the block.    

Therefore, the correct name and strength of the force holding the block up is 50 N upward normal force.

Learn more about stability here: https://brainly.com/question/517289

Answer:

(a) the current will flow in opposite direction

(b) the current needed is 33.25 A

Explanation:

(a) At the center of the two parallel wires, the two wires will have the same magnitude of magnetic field. In order to have a non a zero value of magnetic field at the center, the field must be in the same direction and the current will flow in opposite direction according to right hand rule.

(b) How much current is needed

Given;

distance between the two parallel wires, d = 9.5 cm = 0.095 m

magnitude of magnetic field at a point halfway between the wires, \(B_c\) = 280 μT (This unit was corrected to obtain feasible current)

The magnetic field at distance R due to an infinite wire is given by;

\(B = \frac{\mu_o I}{2\pi R}\)

At the center of the wire, \(B_c = 2B\)

\(B_c = 2(\frac{\mu_o I}{2\pi R} )\\\\B_c = \frac{\mu_o I}{\pi R}\)

where;

μ₀ is permeability of free space = 4π x 10⁻⁷ m/A

R is the center point between the wires, R = d/2 = 0.095m / 2 = 0.0475 m

I is the current needed

\(B_c = \frac{\mu_o I}{\pi R} \\\\I = \frac{B_c \pi R}{\mu_o} \\\\I = \frac{280* 10^{-6}*\pi *0.0475}{4\pi *10^{-7}} \\\\I = 33.25 \ A\)

Answer:

The frequency the motorcyclist hears is 601.60 Hz

Explanation:

The Doppler effect is a physical phenomenon where an apparent change in wave frequency is presented by a sound source with respect to its observer.

The following expression is considered the general case of the Doppler effect:

\(f'=f*\frac{v+-vR}{v-+vE}\)

Where:

f ’, f: Frequency perceived by the receiver and frequency emitted by the emitter respectively. Its unit of measurement in the International System (S.I.) is hertz (Hz), which is the inverse unit of the second (1 Hz = 1 s-1)

v: propagation speed of the wave in the medium. It is constant and depends on the characteristics of the medium. In this case, the speed of sound in air is considered to be 34o m / s

vR, vE: Receiver and emitter speed respectively. Your unit of measure in the S.I. is the m / s

±, ∓:

The + sign is used:

The sign - is used:

In this case:

Replacing:

\(f'=523 Hz*\frac{340 m/s+13.6 m/s}{340 m/s-32.6 m/s}\)

Solving:

\(f'=523 Hz*\frac{353.6 m/s}{307.4 m/s}\)

f' = 601.60 Hz

The frequency the motorcyclist hears is 601.60 Hz

Given parameters:

Initial velocity  = 0m/s

Acceleration  = 2.857m/s²

Time  = 15.5s

Unknown:

Final speed of the car = ?

Solution:

 We use one of the motion equations to solve this problem;

     V = U + at

  Where V is the final velocity

               U is the initial velocity

               a is the acceleration

                t is the time taken

    V = 0 + 2.857 x 15.5  = 44.28m/s

Answer:

option 5

Explanation:

because all u do is have to add them up

Answer:

100 degrees Celsius

Explanation:

Water starts to boil at 100 degrees celcius or 212 degrees fahrenheit.

At 100 degrees Celsius water begin to boil and turns to steam.

The melting point for water is 0 degrees C (32 degrees F). The boiling point of water varies with atmospheric pressure. At lower pressure or higher altitudes, the boiling point is lower. At sea level, pure water boils at 212 °F (100°C).

If the temperature is much above 212°F, the water will boil. That means that it won't just evaporate from the surface but will form vapor bubbles, which then grow, inside the liquid itself. If the water has very few dust flecks etc.

Learn more about a boiling point here https://brainly.com/question/40140

#SPJ2

The momentum of the zombie is 535.3 kg m/s.

Momentum is a fundamental concept in physics that describes the amount of motion that an object has. It is defined as the product of an object's mass and its velocity.

Here,

The momentum (p) of an object is defined as the product of its mass (m) and velocity (v)

p = m * v

In this case, the mass of the zombie is 101 kg and its velocity is 5.3 m/s. So, the momentum of the zombie can be calculated as:

p = 101 kg * 5.3 m/s

p = 535.3 kg m/s

Therefore, the momentum of the zombie is 535.3 kg m/s.

Learn more about momentum here:

https://brainly.com/question/24030570

#SPJ9

Answer:

The distance is 22.45 cm.

Explanation:

Height of cylinder, H = 14 cm

depth of hole, h = 5 cm

The distance of landing of stream from the base of cylinder is

\(R = 2\sqrt{H(H-h)}\\\\R = 2\sqrt{14(14-5)}\\\\R = 22.45 cm\)

When the thistle funnel is moved upwards towards the surface of the liquids, the height (h) decrease.

What happens when the thistle funnel is moved upward?

An important principle outlined by Pascal's law states that any fluid (in this instance, liquids) experiences equal transmission of force in every direction within it. Hence, there is an intimate relationship between the height of a liquid column and its pressure.

Raising a thistle funnel reduces this height causing loss of weight from above this point thus decreasing its pressure.

Learn about pressure here https://brainly.com/question/30638771

#SPJ1

See complete question in the attached image.

Answer:

Explanation:

A) The output force required to lift a 15 kg object would be equal to the weight of the object, which is given by:

Output force = Weight of object = m * g

where m is the mass of the object and g is the acceleration due to gravity. Assuming that g is equal to 9.81 m/s^2, we have:

Output force = 15 kg * 9.81 m/s^2 = 147.15 N

Therefore, the output force required to lift a 15 kg object would be 147.15 N.

B) In this case, the input force is the force that you are pushing down with the lever, which is given as 20 N.

C) The mechanical advantage of the ramp is given by the ratio of the output force to the input force. In this case, the output force is the weight of the object (40 N) and the input force is the force that you are pushing with (10 N). Therefore, the mechanical advantage of the ramp would be:

Mechanical advantage = Output force / Input force = 40 N / 10 N = 4

So, the ramp multiplies your force by a factor of 4.

Note that in all of these calculations, we have assumed that the system is ideal and that there are no losses due to friction or other factors. In practice, these losses will reduce the mechanical advantage of the system and make it more difficult to lift or move objects.

a. The minimum force required to start moving the block is 9.8 N

b.  The force required to continue moving the block at a constant velocity is 5.88 N.

c. If a force greater than 9.8 N is applied, the block will start moving and continue to move until the applied force is less than 5.88 N.

a. Force = μs * N

N = m * g = 2.0 kg * 9.8 m/s^2 = 19.6 N

Force = μs * N = 0.50 * 19.6 N = 9.8 N

b. Force = μk * N = 0.30 * 19.6= 5.88 N N

c. In conclusion, If a force greater than 5.88 N is applied, the block will accelerate. If a force less than 5.88 N is applied, the block will decelerate and eventually stop if the force becomes less than the force of static friction (9.8 N).

Learn more about force at: https://brainly.com/question/12785175

#SPJ1

The banking angle is the angle that the surface makes with the horizontal, or the angle of inclination.

v = √rg tanθ

tanθ=v²/rg  

The relation gives the angle of banking of the cyclist going round the curve. Here v is the speed of the cyclist, r is the radius of the curve, and g is the acceleration due to gravity.

The banking angle is the angle that the surface makes with the horizontal, or the angle of inclination. The normal force acting on the car while travelling through such a curving road has a horizontal component. The centripetal force needed to prevent skidding is provided by this component.

To learn more about banking angle, click:

https://brainly.com/question/29160335

#SPJ1

A. The weight of the mass on the earth is 117.6 N

A. The weight of the mass on the moon is 19.56 N

Weight is defined as follow:

Weight (W) = mass (m) × Acceleration due to gravity (g)

W = mg

Now we shall determine the weight. Details below:

A. Weight on earth

Weight (W) = mass (m) × Acceleration due to gravity (g)

Weight (W) = 12 × 9.8

Weight on earth = 117.6 N

B. Weight on moon

Weight (W) = mass (m) × Acceleration due to gravity (g)

Weight (W) = 12 × 1.63

Weight on moon = 19.56 N

Learn more about weight:

https://brainly.com/question/22881705

#SPJ1

Complete question:

The force of gravity on the Moon is said to be one-sixth of that on the Earth. What would a mass of 12 kg weigh; (a) on the Earth (b) on the moon

No, I dont think that they could grow there now in this day and age becuase the Plateu of Tbiet is very dry and also a little bit dusty. They barely even have grass down there. Wide leaf plants susually grow somewhee like the rainforest where it is warm, sunny, and rainy but in a place like Tibet, I don't think that they would be able to survive there.

Answer:

No. The leaves are similar to those of plants found in lower elevations with plenty of rainfall, like the plants seen at the lower elevations of the Himalayas. Because the Plateau of Tibet has risen over time, it is not likely that these plants could live in these colder climates.

Explanation:

Sample answer from pluto

Air is a mixture

Water  and Saccharose are compounds.

Copper, Nitrogen,  and sulfur are elements.

A mixture is a combination of two or more substances, where each substance retains its chemical properties and can be separated from the mixture by physical means.

Mixtures can be either homogeneous, where the composition is uniform throughout, or heterogeneous, where the composition is non-uniform. Examples of mixtures include;

Learn more about mixtures here: https://brainly.com/question/24647756

#SPJ1

The x and y component of the ball's final velocity are respectively 7.35 m/s and  4.90 m/s.

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. SI unit of velocity is meter/second.

Given that:

Mass of the ball: M = 6.35 kg.

Initial velocity of ball: U = 8.49 m/s.

Mass of the pin at rest: m = 1.59 kg.

Final velocity of pin: v = 20.1 m/s at a -77.0° angle.

Let the x and y component of the ball's final velocity are respectively V₁ m/s and  V₂ m/s.

Appling conservation of momentum along x axis:

MU + m.0 = MV₁ + mvcos(-77.0°)

⇒ V₁ = u - (m/M) v cos(-77.0°)

After putting the values we get:

V₁ = 7.35 m/s.

Appling conservation of momentum along y-axis:

M.0 + m.0 = MV₂ + mvsin(-77.0°)

⇒ V₂ = - (m/M) vsin(-77.0°)

After putting the values we get:

V₂ = 4.90 m/s.

Hence, the x and y component of the ball's final velocity are respectively 7.35 m/s and  4.90 m/s.

Learn more about velocity here:

https://brainly.com/question/18084516

#SPJ1

Answer:

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

\(a = \frac{f}{m} \\ \)

f is the force

m is the mass

From the question we have

\(a = \frac{11 \times {10}^{3} }{1200} \\ = 9.16666...\)

We have the final answer as

Hope this helps you

ANSWER:

Thermodynamics is the branch of Physics that studies at the macroscopic level the transformations of energy, and how this energy can be converted into work (motion).

The starting point for most thermodynamic considerations are the so-called laws or principles of thermodynamics. In simple terms, these laws define how energy transformations take place. Over time, they have become one of the most important laws in science.