If you stand on a spring scale in your bathroom at home, it reads 600 N, which means your mass is 60 kg. If instead you stand on the scale while accelerating at 2 m/s2 upward in an elevator, how many newtons would it read

Given that the radius of the circular path is r = 142 m and the coefficient of the friction is

The condition for the car to travel safely is

Frictional force = centrifugal force

Here, m is the mass of the car and the acceleration due to gravity is g = 9.8 m/s^2.

v is the maximum speed of the car.

Answer:

dang, you are really trying to get everyone to do your heavy lifting lol.

I'll do coal. and maybe a little more.

Explanation:

Coal What is it?

Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other elements; chiefly hydrogen, sulfur, oxygen, and nitrogen.

Coal How we obtain it:

Coal can be extracted from the earth either by surface mining or underground mining. Once coal has been extracted, it can be used directly (for heating and industrial processes) or to fuel power plants for electricity. If coal is less than 61 meters (200 feet) underground, it can be extracted through surface mining.

Coal Pros:

Coal is plentiful in many places and it is easy to access through mining, so people rely on it to produce energy. Coal is easy to store. Once it is mined it can be safely stored with no hazard of fire or explosion like there is with gas or oil. It is relatively easy and inexpensive to convert coal into energy.

Coal Cons:

Coal is nonrenewable.  Coal contains the most CO2 per BTU, the largest contributor to global warming.  Severe environmental, social, and health, and safety impacts of coal mining.  The devastation of the environment around coal mines is heavy.  High cost of transporting coal to centralized power plants. Coal is really dirty and not good.

__________________________________________________________

Solar What is it?

Solar energy is radiant light and heat from the Sun that is harnessed using a range of ever-evolving technologies such as solar heating, photovoltaics, solar thermal energy, solar architecture, molten salt power plants and artificial photosynthesis.

Solar How we obtain it:

Solar technologies convert sunlight into electrical energy either through photovoltaic (PV) panels or through mirrors that concentrate solar radiation. This energy can be used to generate electricity or be stored in batteries or thermal storage.

Solar Pros:

It's clean energy. Solar power is pollution-free and causes no greenhouse gases to be emitted after installation.  It has reduced dependence on foreign oil and fossil fuels.  It is renewable clean power that is available every day of the year, even cloudy days produce some power.  It gives a return on investment unlike paying for utility bills.

Solar Cons:

Solar doesn't work at night. Solar panels are not attractive. You can't install a home solar system yourself. My roof isn't right for solar. Solar hurts the environment. Not all solar panels are high quality.

Answer:

22 m

Explanation:

Answer:

cliff height = 10.55 m

Explanation:

Remarks

Solution

Time

So the time taken is d = r * t  

Remember, this formula can only be used when there is no acceleration.

d = 22 meters

r = 15 m/s

t = ?

t = d / r

t = 22 / 15

t = 1.467

Height of the Cliff

vi = 0 (vertially)

a = 9.8 m/s^2

t = 1.467 seconds    The time horizontally and vertically is the same.

d = ?

Formula

d = vi*t + 1/2 a t^2

Solution

d = 0 + 1/2 * 9.8 * 1.467^2

d = 10.55 meters.

Answer:

Explanation:

\(V^2=V^2_i+2a(x_f-x_i)\)

\(0.76^2=0^2+2a(15.2)\)

\(0.5776=30.4a\)

\(a=0.019m/s^2\)

Answer:

C.

Explanation:

Fahrenheit scale is a temperature scale that measures the boiling point of water at 212 degrees F and the freezing point at 32 degrees F. The Fahrenheit scale was developed by the German scientist Daniel Gabriel Fahrenheit in 1724.

In the given scenario, the scientist, who wishes to measure the temperature of her experiment which will expectantly be colder than the point of water, should use the Fahrenheit scale.

So, the correct answer is option C.

Answer: 14

Explanation: 35•0.40

The minimum force to start this block moving is 14N,formula to be used to find  minimum force(F= μ N

those minimal steps, including the use of force, required to defuse a crisis or protect oneself from an aggressive act or hostile intent. Once the target obeys orders or stops taking hostile action, all actions must stop.

To solve such problems, you must find the second derivative: The force is at its minimum if the second derivative is positive; at its maximum if the second derivative is negative.

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Answer:

5km/h

Explanation:

distance divided by total time

The amount of potential energy the block contains is 2,822.4 Joules

Given the following data:

We know that the acceleration due to gravity (g) of an object on planet Earth is equal to 9.8 \(m/s^2\).

To determine the amount of potential energy the block contains:

Mathematically, potential energy (P.E) is given by the formula;

\(P.E = mgh\)

Where:

Substituting the parameters into the formula, we have;

\(P.E = 12 \times 9.8 \times 24\)

Potential energy (P.E) = 2,822.4 Joules

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Threshold 1 and Threshold 2 Accelerated Remitters will receive a PD7A-AR CRA Statement of Account. Option B is correct.

The CRA Statement of Account that would be received by Threshold 1 and 2 accelerated remitters is PD7A-AR.

CRA Statement of Account. The CRA statement of account is a statement of your account with the Canada Revenue Agency (CRA) which shows the balance owed or the credit available to you. CRA account statements can be used to check your account balance, view transactions, and payments made towards your balance.

In conclusion, Threshold 1 and 2 accelerated remitters receive a PD7A-AR CRA Statement of Account.

Therefore, Option B is correct.

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The force exerted by the elevator on the man is 0N if a man weight is 800N.

We know very well for an elevator which is rising upward,its acceleration is given by the formula,

Net acceleration=g+a where g is the acceleration due to gravity and a is acceleration of elevator.

We know that g= 9.8m/sec² if we assume downward direction as positive direction, now we have given that value of a=-9.8m/sec².

Net acceleration is = 9.8 + (-9.8)=0m/sec²

Now, we know that according to newton second law of motion -. The acceleration of the body is straightforwardly relative to the net power following up on the body and conversely corresponding to the mass of the body. This really intends that as the power following up on an article is expanded, the speed increase of the item is expanded.

In other words,we have F=ma

where m is the mass of the body and a is the acceleration of the body.

We have a=0

So,F=m×0

=>F=0N

Hence, exerted force is 0N.

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Answer:

you have to organize the data. a= acceleration vi=inicial velocity vf=final velocity  t=time.

a=80m/s

vi=0

vf=?

t=40 s

the formula you have to use is:

vf=vi+a*t  (final velocity= inicial velocity plus acceleration times time)

Explanation:

I was the best one at my class, hope it helped

Answer: 320 m/s

Explanation:  V initial = 0, V final= ?   Acceleration = 8m/s/s  t=40s

Answer:

7.894 MJ

Explanation:

Given that:

The mass of the saturated water vapor = 3.7 kg

The pressure of the saturated water vapor = 0.4 MPa

From saturated properties of steam tables when the pressure is at 0.4 Mpa

The enthalpy in (kJ/kg);

hf = 604.7 kJ/kg

hg = 2738.1 kJ/kg

The rejected heat during this process is:

Q = m(hg - hf)

Q = 3.7(2738.1 - 604.7) kJ/kg

Q = 3.7(2133.4) kJ/kg

Q = 7893.58 kJ/kg

Q = 7.894 MJ

When a light beam enters a transparent material at an angle of incidence, the refraction takes place. This transparent material is diamond.

The material through which a person can be able to see clearly, when light falls on it.

The Snell's law is the ratio of sine of angle of incidence to the sine of angle of refraction is equal to the ratio of refractive index of the two mediums.

sin i /sin r = n₂ / n₁

The angle of incidence of light is 38⁰ and angle of refraction is 14.76⁰. The air has refractive index is 1, then the refractive index of the transparent material is

n₂ = sin 38 x 1 /sin 14.76

n₂ = 2.4165

The refractive index of the transparent material is approximately 2.417.

Thus, the transparent material is diamond.

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Visible light , The process by which plants convert carbon dioxide, water, and sunshine into oxygen and sugar-based energy is known as photosynthesis.

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The electric field strength (in v/m) between the plates is 9.117647 X10⁵ eV/m

The electric

field strength can be calculate as follows:

The magnitude of the electric field between two parallel conducting plates is defined as:

E = ΔV

      d

where  ΔV is the potential difference between the plates and d is their separation.

Potential energy is defined as the product of the particle charge and the potential difference.

u = q ΔV

Solve ΔV and subtitute to the electric field equation:

ΔV= U/ q

E= U/qd

In this case we have a double charged ion, so q= 2e

E =    31 x10³ eV     = 911,764.7 eV/m =9.117647 X10⁵ eV/m

    (2e) (1.7 x10⁻²m)

therefore, the electric field strength (in v/m) between the plates is 9.117647 X10⁵ eV/m

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do your work own bro its your question

Answer:

is this a check all that apply or a single answer?

The simplest compound of hydrocarbon is methane

The electron structure attached

Answer:

Explanation:

i know don't  sorry remove my answer if you want to :(

The main answer to your question is that the current drawn from the power supply with an EMF of 100V and a resistor with a value of 1000 ohms is 0.1 amperes (or 100 milliamperes).

To calculate the current drawn from the power supply, we can use Ohm's law, which states that current (I) is equal to voltage (V) divided by resistance (R):

I = V / R

Plugging in the values we have:

I = 100V / 1000 ohms = 0.1 amperes

Therefore, the current drawn from the power supply is 0.1 amperes or 100 milliamperes.
the current drawn from the power supply is 0.1 A.

Here's the step-by-step explanation:

1. You are given a resistor with a value of 1000 ohms and a power supply with an EMF of 100 V.
2. To find the current drawn from the power supply, we can use Ohm's Law, which is stated as V = IR, where V is voltage, I is current, and R is resistance.
3. We are given V (100 V) and R (1000 ohms), so we can rearrange the formula to solve for I: I = V/R.
4. Now, substitute the given values into the formula: I = 100 V / 1000 ohms.
5. Perform the calculation: I = 0.1 A.

Therefore, the current drawn from the power supply is 0.1 A.

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Answer:

C, proof that the driver has life insurance.

Explanation:

The transfer of thermal energy that Ilva is experiencing is known as radiation. Radiation is the transfer of heat energy through electromagnetic waves that do not require a medium to travel through. In this scenario, the boiling water and stove are emitting infrared radiation which is absorbed by Ilva's body, causing her to feel the heat. Additionally, convection and conduction are two other methods of transferring thermal energy. Convection is the transfer of heat energy through the movement of fluids, while conduction is the transfer of heat energy through direct contact between two objects. However, in this scenario, radiation is the primary method of thermal energy transfer that Ilva is experiencing.
Ilva is standing a few feet away from boiling water, and she feels the heat from the boiling water and the stove. The term that describes this transfer of thermal energy is "radiation." Radiation is the process through which thermal energy is transferred through electromagnetic waves without the need for direct contact or a medium like air or water. In this scenario, the heat from the boiling water and the stove radiates outwards and reaches Ilva, allowing her to feel the warmth. This form of heat transfer is why you can feel the heat from a fire or a hot object without touching it directly.

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The term that describes the transfer of thermal energy that Ilva feels from the boiling water and the stove is radiation.


Radiation is the transfer of thermal energy through electromagnetic waves. Unlike conduction and convection, radiation does not require a medium (such as a solid, liquid, or gas) to transfer heat. Instead, it can transfer energy through empty space or air.

In Ilva's situation, the heat she feels from the boiling water and the stove is primarily due to the infrared radiation emitted by these hot objects. As the electromagnetic waves reach her, they transfer the thermal energy to her body, making her feel the warmth even though she is standing a few feet away from the heat source.

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During a tennis volley, the force pair involved is the action-reaction forces.

When playing tennis and returning a volley, the force pair involved is the action and reaction forces. In the process of hitting the ball, the tennis racket exerts a force on the ball, which is the action force.

The ball, in turn, exerts an equal and opposite force on the racket, which is the reaction force.Both the racket and the ball experience the force of impact during the volley.

The force applied by the racket causes the ball to move forward, while the equal and opposite force applied by the ball pushes the racket back.

These two forces are referred to as action-reaction forces or force pairs. A force pair refers to a pair of forces that are equal in magnitude but opposite in direction.

These forces always act on different objects and occur simultaneously. In this scenario, the action force was exerted by the tennis racket while the reaction force was exerted by the ball.

Therefore, during a tennis volley, the force pair involved is the action-reaction forces.

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The total energy of the body at evevry point is remained same due to the law of conservation of energy. Distance from A to B and final velocity of the ball just reach before C is 44.3 m/s.

d (distance) from A to B is = √2gh

In this case given are, g = 9.8 m/s² and h = 100m,

so here d = √(2⋅9.8⋅100) = 44.3m.

Final velocity ,v = √2gh

Here given are , v is the velocity, g is the acceleration due to gravity, and h is the height. In this case,

g = 9.8 m/s² ,h = 100m,

v = √(2⋅9.8⋅100)

= 44.3 m/s (final velocity)

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Take into account that the Newton Second law is given by the following formula:

F = m·a

if you solve the previous formula for a, you obtain:

a = (1/m)·F

In the graph, you can notice that acceleration a is function of force F, just as in the previous formulation. The slope of the lines of the graph is 1/m, where m is the mass.

As you can notice in the formula for a, if m is greater, the slope is smaller.

Then, the blue line belongs to the smallest mass, the gray line belongs to the greatest mass, and the orange line is the middle mass.

Hence, you have:

- blue line - 40 kg

- gray line - 200 kg

- orange line - 100 kg

Answer:

Mid ocean ridges are evidence of sea floor spreading as tectonic movement opens a gash or "fault" in the ocean floor.

Answer:

Eruptions of molten material, magnetic stripes in the rock of the ocean floor, and the ages of the rocks themselves; this evidence led scientists to look again at Wegener's hypothesis of continental drift.

Answer:

(Gravity)is very important to us. We could not live on Earth without it. The sun's gravity keeps Earth in orbit around it, keeping us at a comfortable distance to enjoy the sun's light and warmth. It holds down our atmosphere and the air we need to breathe.

(Friction)can slow things down and stop stationary things from moving. In a frictionless world, more objects would be sliding about, clothes and shoes would be difficult to keep on and it would be very difficult for people or cars to get moving or change direction.Nov 14, 2018