how far from the center of the stick must the rope be attached in order to maintain rotational equilibrium?

The stopping time will be 0.13 second required in order to safely stop a CEV .

Speed is distance travelled by the object per unit time. Due to having no direction and only having magnitude, speed is a scalar quantity With SI unit meter/second.

The average force acting on CEV is = 426000 N.

Mass of the  CEV is = 7250 kg.

Initial speed of the CEV  is =  7.65 m/s

Hence, deceleration of the CEV is = ( 426000 N ÷ 7250 kg) = 58.75 m/s²

Hence, required stopping time = 7.65 m/s ÷ 58.75 m/s² = 0.13 second.

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Answer:

Wind is caused by differences in the atmospheric pressure. When a difference in atmospheric pressure exists, air moves from the higher to the lower pressure area, resulting in winds of various speeds.

Our Earth is a rotating planet. Fast moving air is deflected by the Coriolis effect, except exactly on the equator. This defines the direction of cyclones, hurricanes, and typhoons rotation. The wind flow around a large cyclone is counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere.

Wind forms when the sun heats one part of the atmosphere differently than another part. This causes expansion of warmer air, making less pressure where it is warm than where it is cooler. Air always moves from high pressure to lower pressure, and this movement of air is wind.

The high is west of you, and the low is east of you. (If you're in the northern Hemisphere.)

Answer:

Just now because this video is not working properly what I have to download free fire and pinni today aakash will be able and pinni today aakash and pinni today and I am not sure if you know that I will show

P1 x v1/t1 = p2 x v2 / t2

use the given values:

1.5 x 106 / 318 = 2 x v2 / 293

Simplify:

0.5 = (2 x v2)/293

Multiply both sides by 293:

146.5 = 2 x v2

Divide both sides by 2:

V2 = 73.25 L

Answer: 73.25 L

It is not necessary to turn the heater on when the motor runs at full load as  the rate at which the motor dissipates heat is greater than the rate at which the room is heated.

Let us first compute the electrical energy in to electrical energy out using the efficiency of the motor:

Efficiency = Electrical energy out / Electrical energy in

88/100 = Electrical energy out / Electrical energy in

Electrical energy out = (88/100) × Electrical energy in

Electrical energy in = Shaft power output of the motor = 20 kW

So, electrical energy out = (88/100) × 20 = 17.6 kW

P = Electrical energy in - Electrical energy out

P = 20 - 17.6 = 2.4 kW

The heat dissipated by the motor to the room is the difference between the electrical energy in and the shaft power output. Therefore, the rate at which the motor dissipates heat to the room it operates in at full load is 2.4 kW.

During winter, the room is heated by a 2 kW resistance heater. Since the rate at which the motor dissipates heat is greater than the rate at which the room is heated, it is not necessary to turn the heater on when the motor runs at full load.

An electric motor has a shaft power output of 20 kW and an efficiency of 88%. The rate at which the motor dissipates heat to the room it operates in at full load is 2.4 kW.

During winter, the room is heated by a 2 kW resistance heater. Since the rate at which the motor dissipates heat is greater than the rate at which the room is heated, it is not necessary to turn the heater on when the motor runs at full load.

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Answer:

it is chemical energy

Explanation:

that is the energy used by our body, so it is the one that we will loose. and the energy that we gain is also chemical energy

Answer:

Acceleration (a) = 40 m/s²

Explanation:

Given:

Initial velocity (u) = 6 m/s

Final velocity (v) = 4.4 m/s

Time taken (t) = 0.04sec

Find:

Acceleration (a) = ?

Computation:

We know that,

⇒ v = u + at

⇒ a = (v - u) / t

⇒ Acceleration (a) = (4.4 - 6) / 0.04

⇒ Acceleration (a) = (-1.6) / 0.04

Acceleration (a) = 40 m/s²

Answer:  \(135.48\ m/s^2\) ,\(13.82g\)

Explanation:

Given

Missile velocity raises from 0 to \(8.4\ km/s\)

Time taken \(t=62\ s\)

Convert velocity into m/s

\(\Rightarrow 8.4=8.4\times 1000=8400\ m/s\)

Acceleration is the change of velocity w.r.t time

\(\Rightarrow a=\dfrac{8400-0}{62}\\\\\Rightarrow a=135.48\ m/s^2\)

In terms of gravity, it is

\(\Rightarrow \dfrac{135.483}{9.8}=13.82\)

Therefore, acceleration in terms of g is \(13.82g\)

The actual mass of a 1 cm² piece of copy paper is determined as 0.0074 g.

Area = Length x Width

Area = (11 x 2.54 cm) x (8.5 x 2.54 cm)

Area = 603.22 cm²

Mass = area density/area

Mass = (4.5 gcm²)/(603.22 cm²)

Mass = 0.0074 g

The complete question is below:

A sheet of 8.5 inch by 11inch paper has a mass of 4.50 grams one square centimeter , 1cm2 of that sheet of paper will have a mass closets to ____grams ( (hint use 1inch = 2.54 centimeters and area = length times)

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Answer:

Dead sea is full of salt.

Explanation:

The water of the Dead Sea is full of salt, which makes it much denser and heavier than freshwater. If you swim in it, you float very easily.

When salt is dissolved in water, for example sea water, dissolved salt adds to the mass of the water and makes the water denser than it would be without salt. Because objects float better on a dense surface, they float better on salt water than fresh water.

The upward force exerted by the floor is equal to the downward force that you apply to the floor (Your weight).

The net force acting on an object is equal to the rate at which its momentum varies over time, according to Newton's second law in its original formulation. This law suggests that an object's acceleration is directly proportional to the net force acting on it, is in the direction of the net force, and is inversely proportional to the mass of the object if the object's mass is constant.

Thrust, which increases an object's velocity; drag, which decreases an object's velocity; and torque, which causes changes in an object's rotational speed, are all concepts related to force.

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Answer: There are seven main stores of energy: magnetic

internal (thermal)

chemical

kinetic

electrostatic

elastic potential

gravitational potential

Explanation: So you can have any of these

Answer:

  85.2 N

Explanation:

You want to know your weight if the Earth were 3 times as massive and had 5 times the present radius. Your weight is 710 N.

Your weight is proportional to the mass of the Earth and the square of the radius between your mass and the center of the Earth. The revised dimensions of the earth would multiply your weight by ...

  W = k(M/r²) = 710 N

  W' = k((3M)/(5r)²) = k(M/r²)(3/25) = (710 N)(3/25) = 82.5 N

Your weight would be 82.5 N.

The average acceleration of the egg while falling can be calculated using the equation a = (v - u)/t, where v is the final velocity, u is the initial velocity and t is time.

a) A = (11.0 m/s) / (1.12 s) = 9.82 m/s^2

b) A = (0 m/s) / (0.131 s) = 0 m/s^2

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A. Radio Frequency interference.A cell phone emits radio frequency (RF) signals as part of its communication function.

These RF signals can interfere with an electrocardiogram (ECG) by introducing noise or artifacts into the electrical signals of the heart being recorded. This interference can disrupt the accuracy and reliability of the ECG reading.

Mains interference (B) refers to interference caused by the power mains or electrical power lines. It typically manifests as a 50 or 60 Hz frequency noise and can be seen as regular spikes or waves on the ECG recording. However, cell phones do not directly produce mains interference.

Magnetic interference (C) refers to interference caused by magnetic fields, such as those generated by strong magnets or magnetic resonance imaging (MRI) machines. Cell phones do not generate strong magnetic fields that can interfere with ECG signals.

Therefore, the correct answer is A. Radio Frequency interference.

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The energy an object has due to its motion is called kinetic energy.

The largest voltage the battery can have without breaking the circuit at the supports is 626.71 V.

The magnetic field on a current-carrying conductor is determined by the flow of current through the conductor and the distance from the carrier.

Voltage is the pressure exerted by an electrical circuit’s power source through a conducting loop to push charged electrons (“current”) through an electrical circuit to perform a function, such as turning on a light.

Given,

The length of the metal bar = 54.0 cm or 0.54 m

mass of the bar = 740 g or 0.74 kg

magnetic field acting perpendicular to the bar = 0.450 T

resistance  = 26.0

Let the maximum potential in the battery be V and the current in the circuit be I. So

V= IR

V = 26×I

I = V/21

For the rod to be in its position the magnetic force on the rod must be equal to the weight. So

magnetic force = weight

B×I×L = mg

0.45 × V/21 × 0.54 m =  0.74 × 9.8

V = 626.71 V

Thus the largest voltage the battery can have without breaking the circuit at the supports is 626.71 V.

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Answer:

the image is behind the mirror

virtual

erect(not inverted)

larger than the object

Given:

Radius = 115.2 m

Velocity = 22.9 m/s

Mass = 1302 kg

Let's find the force required to keep the car.

To find the force, apply the formula:

Where:

m is the mass = 1302 kg

v is the velocity = 22.9 m/s

r is the radius = 115.2 m

Thus, we have:

Therefore, the force is 5926.9 N.

ANSWER:

5926.9 N

• Initial velocity (u) = 0 m/s

• Final velocity (v) = 40 m/s

• time (t) = 8s

\(\implies \sf a = \dfrac{\Delta v}{ t} \\ \)

\(\implies \sf a = \dfrac{v - u}{ t} \)

\(\implies \sf a = \dfrac{40 - 0}{ 8} \)

\(\implies \sf a = \dfrac{40}{ 8} \)

\(\implies \bf a = 5 \: {ms}^{ - 2} \)

\( \longrightarrow \sf {v}^{2} - {u}^{2} = 2as \\ \)

\(\longrightarrow \sf {(40)}^{2} - {(0)}^{2} = 2 \times5 \times s \\ \)

\( \longrightarrow \sf 1600 = 10s\)

\(\longrightarrow \sf s = \dfrac{1600}{10} \)

\(\longrightarrow \bf s = 160 \: m\)

Answer:

800\(\pi\)cm²

Explanation:

Given parameters:

radius of the coin  = 20cm

Unknown:

Surface area of the coin  = ?

Solution:

A coin is made up of two faces;

  Surface area  = 2(πr²)

Insert the parameters and solve;

     Surface area = 2(\(\pi x 20^{2}\))

    Surface area = 800\(\pi\)cm²

Answer:

i think its b

Explanation:

its been awhile since I've worked on Newton's first law

At the point of momentary rest on the ramp, the hoop will have zero kinetic energy and zero rotational kinetic energy, but it will have gained gravitational potential energy compared to its initial position on the horizontal surface.

What is Kinetic Energy?

Kinetic energy is a scalar quantity, meaning it only has magnitude and no direction. It is measured in joules (J) in the International System of Units (SI). Kinetic energy is a fundamental concept in physics and is commonly used to describe the energy associated with the motion of objects, such as vehicles, particles, or even microscopic atoms and molecules.

The qualitative energy bar chart for the earth-hoop system, from the time when the hoop is rolling on the horizontal surface to the time when it has rolled up the ramp and is momentarily at rest, would be as follows:

Kinetic energy (KE) of the center of mass of the hoop: Initially, the center of mass of the hoop is moving at 20 m/s on the horizontal surface, so it has kinetic energy due to translational motion.

Rotational kinetic energy (KErot) of the hoop: The hoop is also rolling without slipping on the horizontal surface, so it has rotational kinetic energy due to its angular velocity of 10 rad/s.

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(1) The relationship between heat and thermal insulators, is that thermal insulators are poor conductors of heat.

(2) The examples of thermal energy transfer in the mentioned scenario, heat transfer by conduction, radiation, and convection.

Heat usually flow from region or area of high temperature to region or area of lower of temperature.

Materials that do not conduct heat very well are good thermal insulators, while materials that conduct heat very well have a low insulating capability.

The examples of thermal energy transfer in the mentioned scenario include;

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The relationship between heat and thermal insulators is that if the material is more insulator then the heat transfer will be least.

Heat flow is a consequence of contact between bodies of different temperatures. Thermal insulation gives a location of insulation in which heat conduction is reduced which creates a thermal barrier or thermal radiation is reflected rather than absorbed by an object with a lower surface temperature.

Heat energy is the energy that is present within a system that is responsible for its internal temperature. Heat is the flow of thermal energy between two bodies. Conduction and convection are the modes of heat transfer that are directly proportional to the temperature.

So we can conclude that when the material is insulator then the heat will be less transferred.

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Answer:

A. Muscular endurance

Explanation:

Muscular endurance is measured by the amount of time a muscle group can sustain a contraction.

Answer: muscular endurance

Explanation:

i did the test

Answer:

newton's 2nd  law

Explanation:

In the first law, an object will not change its motion unless a force acts on it. In the second law, the force on an object is equal to its mass times its acceleration. In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction.

The rate at which an object's velocity with respect to time changes is referred to as acceleration in mechanics. They are vector quantities, accelerations. The direction of the net force applied on the item determines the object's acceleration.

A train starts from rest and accelerate uniformly until it attains a velocity of 8m/s in 10 seconds. calculate the acceleration of the train​.

a = 8/10

a = 0.8m/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.

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Water has a freezing point of zero degrees and a boiling point of one hundred degrees on the Celsius temperature scale. A brine solution's freezing point is set at zero degrees Fahrenheit, while that of water is 32 degrees.

It comes in the forms of hail, frost, snow, and sleet. 0 degrees Celsius is the freezing point of water (32 degrees Fahrenheit). The molecules of water start to enlarge as the temperature approaches the freezing point.

The temperature at which a substance becomes liquid or solid is known as the melting or freezing point of that substance. Depending on the degree of bonding between the particles and their mass, different substances have varying melting points.

Water typically has a freezing point and melting point of 0 °C or 32 °F. If supercooling takes place or there are pollutants in the water that could cause freezing point depression to happen, the temperature may be lower. Water can remain a liquid at temperatures as low as -40 to -42°F under some circumstances.

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Answer:

move less/slower

Explanation:

Answer:

zero

Explanation:

Because if the object is not in motion then it only posseses potential energy not kinetic energy