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Answer:

Explanation:

The mass of the car can be found by using the formula

\(m = \frac{2k}{ {v}^{2} } \\ \)

From the question we have

\(m = \frac{2 \times 300000}{ {20}^{2} } = \frac{600000}{400} = \frac{6000}{4} \\ \)

We have the final answer as

Hope this helps you

Health literacy is knowing about health and knowledge of of right healthcare and services, taking care of diseases or just knowledge or taking care of your own health.

Answer:

objects with greater mass should have greater inertia

The answer is that we can conclude that the star is moving towards us. Spectral lines are unique to each element and can be used to identify the presence of certain elements in a star's atmosphere.

When comparing the laboratory measurement of the hydrogen spectral line with the same line in the spectrum of a star, any difference in wavelength indicates a shift in the position of the spectral line. In this case, the hydrogen spectral line in the star's spectrum appears at a slightly shorter wavelength (485.9 nm) than in the laboratory measurement (486.1 nm), indicating a blue shift.

A blue shift occurs when an object is moving towards us, and the spectral lines appear shifted towards the blue end of the spectrum. This shift is caused by the Doppler effect, which is the change in frequency or wavelength of a wave in relation to an observer who is moving relative to the source of the wave. Therefore, based on the blue shift of the hydrogen spectral line in the star's spectrum, we can conclude that the star is moving towards us.

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Answer:

\(0.00074m\) \(=\) \(7.4*10^{-4}m\)

Explanation:

Given

\(0.00074m\)

Required

Express as scientific notation

The scientific notation of a number is: \(a * 10^{b}\)

Where \(1 \le a \le 9\)

This implies that:

\(0.00074m = 7.4 * 10^b\)

Next, is to determine the value of b.

Count the number of point to move from the current point location to 7.4.

If the point moves backward, b will be negative, else b will be positive.

So:

\(0.00074m\)      \(b=-4\)

Hence:

\(0.00074m\) \(=\) \(7.4*10^{-4}m\)

Answer: See explanation

Explanation:

From the information given, we are informed that an instrument rated pilot is planning a flight under IFR on July 10, this year.

It should be noted that before conducting the flight, the pilot must have performed and logged the prescribed tasks and repetitions that are required for instrument currency no earlier than January, 10 for the year.

The force that is acting on the object is 139N. Option A

Let us know that we can only say that there is work done if we have a force that has been applied in such a way that it can be able to move an object in the direction of the force.

As such, we are going to have that;

W = Fcosθ

W = work done

F = force applied

θ = angle turned

1110 = F cos 37 * 10

F = 1110/cos 37 * 10

F =  139N

There is the application of a force of about 139N on the object as have been shown here.

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It is observed that sedimentary rock was generated by compacting sedimentary layers; a meteorite struck Earth after the sedimentary layers developed. Option D is correct.

Space is captured by satellite camera systems in a variety of electromagnetic frequencies.

A satellite imager, in fact, is a detector equipped with a sensor that actively scans the changing surface of the Earth, registering the signal generated or reflected by the item or the surrounding region.

This image of northern Algeria was captured by a satellite camera in orbit, and it shows an impact crater, sedimentary rock strata, and a stream channel pouring out of the crater.

Algeria is located at the northernmost tip of the African continent. Algeria's terrain is dominated by the Sahara Desert and two mountain ranges.

It is observed that sedimentary rock was generated by compacting sedimentary layers; a meteorite struck Earth after the sedimentary layers developed; and water erosion formed a stream channel from the meteorite's impact zone.

Hence,option D is correct.

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Answer: 5000

Explanation: pressure: force / area

SI unit of force: newton

SI unit of area: metre²

Force exerted: 10 N

Area on which it is exerted : 20 cm²

Since area has to be in m² , we convert cm² to m² by dividing it by 10000( m:100cm, 1m²: 10000 cm²)

Area=20/10000: 0.002 m²

So, pressure= 10/0.002=5000 pa( SI unit of pressure is pascal)

The pressure is the force exerted by unit area.  The force on the brick by its weight is 10 N and the surface area is 20cm². Then, the pressure in the given area will be 5000 Pa.

Pressure on an object is the force exerted per unit area of that object. Pressure is dependent on the volume and temperature as well. It is commonly expressed in the unit of atm. Other units of pressure are bar, pascal, torr, mmHg etc.

The normal force acting on the brick is the force by its own weight.

normal force = 10 N

surface area = 20 cm²

20 cm² /(100)² = 0.002 m²

Pressure = force/ area

p = 10 N/0.002 m²

  = 5000 N/m²  = 5000 pa

Therefore, the pressure exerted on the brick is 5000 Pa

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The change in electric potential energy is given by the equation: ΔPE = qΔV where ΔPE is the change in electric potential energy, q is the charge, and ΔV is the change in electric potential.

In this problem, we are given that 24.0 J of work is done by an external force to move a charge from a potential of 8.0 V to a potential of 2.0 V. We can calculate the change in electric potential as:

ΔV = Vf - Vi = 2.0 V - 8.0 V = -6.0 V

Since the charge is not given, we cannot calculate the change in electric potential energy directly. We would need to know the charge in order to use the equation above.

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Answer:

I would say all of the above.

Explanation:

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Answer:

the mass of the car is very big

Explanation:

its heavy

Explanation:

Given that,

Mass of the rider, m = 60 kg

Let the radius of the circle, r = 30 cm = 0.3 m

Let the velocity, v = 20 m/s

We need to find the centripetal force needed to keep the rider in a circular path. It can be given by :

\(F=\dfrac{mv^2}{r}\\\\F=\dfrac{60\times (20)^2}{0.3}\\\\F=80000\\\\\text{or}\\\\F=8\times 10^4\ N\)

So, the required force is \(8\times 10^4\ N\).

Starting from rest on a circular track with a radius of 300 m and a constant tangential acceleration of 0.75 m/s², the car will travel a distance of approximately 0.2119 meters or 21.19 centimeters in 0.75 seconds.

To determine the distance traveled and the time elapsed by the car starting from rest on a circular track with a radius of 300 m and a constant tangential acceleration of 0.75 m/s², we can use the equations of circular motion.

The tangential acceleration is the rate of change of tangential velocity. Since the car starts from rest, its initial tangential velocity is zero (v₀ = 0).

Using the equation:

v = v₀ + at

where v is the final tangential velocity, v₀ is the initial tangential velocity, a is the tangential acceleration, and t is the time, we can solve for v:

v = 0 + (0.75 m/s²) * t

v = 0.75t m/s

The tangential velocity is related to the angular velocity (ω) and the radius (r) of the circular track:

v = ωr

Substituting the values:

0.75t = ω * 300

Since the car starts from rest, the initial angular velocity (ω₀) is zero. So, we have:

ω = ω₀ + αt

ω = 0 + (0.75 m/s²) * t

ω = 0.75t rad/s

We can now substitute the value of ω into the equation:

0.75t = (0.75t) * 300

Simplifying the equation gives:

0.75t = 225t

t = 0.75 seconds

The time elapsed is 0.75 seconds.

To calculate the distance traveled (s), we can use the equation:

s = v₀t + (1/2)at²

Since the initial velocity (v₀) is zero, the equation becomes:

s = (1/2)at²

s = (1/2)(0.75 m/s²)(0.75 s)²

s = (1/2)(0.75 m/s²)(0.5625 s²)

s = 0.2119 meters or approximately 21.19 centimeters

Therefore, the car travels a distance of approximately 0.2119 meters or 21.19 centimeters.

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Answer:

BRAINLIEST PLSSSSSSSSSSSSSSSSSSSSSSSS

Thermodynamics

Explanation:

Thermodynamics is the study of energy. First Law of Thermodynamics: Energy can be changed from one form to another, but it cannot be created or destroyed. The total amount of energy and matter in the Universe remains constant, merely changing from one form to another.

According to the isostasy theory, the crust of the Earth is balanced by gravity inside the mantle. Therefore, if weight were to be added, the crust would gradually sink until it found a new isostatic balance.

The relationship between the crust and the upper mantle that creates an equilibrium for the Earth's crust is represented by isostasy.

overall equilibrium in the earth's crust is preserved by the gravitationally-stressed yielding flow of rock material under the surface. the property or condition of being under equal pressure from all directions.

Earth's isostasy is the region where erosion and mountain formation occur.

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Answer:

A. it is Electromagnet

B. there are 2 ways to increase the magnetic field in this situation.

hence only by doing first way ( increase number of turns) magnetic field can be increased.

Explanation:

since oil needs more boiling time and a higher boiling temperature the oil would have to be in the pot longer than the water if it needs to be boiled longer that is why the blue line for oil temp. is significantly higher than that of the water temp.

Answer:

c

Explanation:it is

Solids have a distinct volume and form. Although they have a specific capacity, liquids adopt the form of a container. Gases lack a distinct volume or form.

Gas is a sample of matter that adopts the shape of the container in which it is housed and develops a uniform density inside the container.

a)Particle motion

Liquid molecules are more energetic than solid molecules. Further heating will cause the molecules to move so quickly that they won't stick together at all. The gas molecules have the highest energy content.

b)Shapes

Solids are discrete in their shape and volume. Although they take on the shape of the container, liquids have a specific volume. The form and volume of gases are ambiguous.

c)Compressibility

The solid or liquid's constituent atoms, ions, or molecules are in close proximity to one another.

The greater compressible nature of gases compared to liquids or solids is explained by the kinetic-molecular hypothesis.

Hence solids, liquids, and gases differentiate in terms of particle motion, shape, and compressibility.

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Answer:

In a solid, atoms vibrate or wiggle, but are locked in place. Solids have a rigid shape, and are hard to compress. In a liquid, atoms have some freedom to move. Liquids take the shape of their container, and are hard to compress. In a gas, atoms move freely. Gases have no definite shape, and are easy to compress.

Explanation:

Answer:

313kelvin

Explanation:

40 degree celcius plus 273=313K

Answer:

Circuit

Explanation:

because a roughly circular line, route, or movement that starts and finishes at the same place.

This question can be solved by using the concepts of electrical energy, electricity, circuit, and electric current.

The flow of electricity from one place to another is called "Electrical Energy".

The electric current or electricity is defined as the rate of flow of electric charges from one point to another point, along a path known as a circuit. Electrical energy is caused by the movement of electric charges or the electric current from one point to another point of the circuit.

Therefore, this flow of electricity or electric current from one place to another place is termed Electrical Energy.

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The attached picture shows examples of electrical energy.

Answer:

10s

Explanation:

The motion of one particle of a gas is unaffected by the motion of other particles of the gas unless the particles collide.

Heat is the primary cause of particle motion on Earth. The temperature of any substance is correlated with the energy of the atoms and molecules that comprise it. Energy is conserved, thus if one particle loses energy, another one acquires it.

The components of matter are also continually in motion. They are energetic in motion. The kinetic theory of matter states that all matter is made up of particles that are constantly moving.

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Answer:dam hold up

Explanation: