A 0.1 g plastic bead is charged by the addition of 1*10^10 excess electrons. what electric field (strength and direction) will cause the bead to hang suspended in the air?

Bronco the skydiver, whose mass is 80 kg experiences 200 N of air resistance and gravity pulls on him with 800 N. The acceleration of his fall  7.5 m/sec².

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

To find the acceleration,

   F = mg

   F = 80.(10)

   F = 800 N

   air resistance = 200 N

   Net force = F - air resistance

                = 800 - 200

                =  600 N

   600 = mass . acceleration

   600 = 80 . acceleration

   acceleration = 7.5 m/sec²

Bronco the skydiver, whose mass is 80 kg experiences 200 N of air resistance and gravity pulls on him with 800 N. The acceleration of his fall  7.5 m/sec².

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Answer:

5.978 años luz

Explanation:

Hi! Your answer is: The distance between the Barnard's star and Earth is 5.978 light years.

The weight of the person does not decrease when they go from sea level to the mountain top.

To determine the change in weight of a 100-kg person when going from sea level to a mountain top, we need to consider the variation in gravitational acceleration with respect to the change in altitude.

At sea level, the standard average value for gravitational acceleration is approximately 9.8 m/s². However, as we move to higher altitudes, the gravitational acceleration decreases slightly.

The formula for calculating weight (W) is given by:

W = mass * gravitational acceleration.

Let's calculate the weight at sea level:

W_sea_level = 100 kg * 9.8 m/s² = 980 N.

Now, we need to determine the change in gravitational acceleration as we move from sea level to the mountain top.

The change in gravitational acceleration with respect to altitude is quite small and can be neglected for most practical purposes unless we are dealing with extremely high altitudes or precision calculations.

Therefore, for simplicity, we can assume that the gravitational acceleration remains approximately constant as the person moves from sea level to the mountain top. In reality, the change in altitude is not significant enough to affect the gravitational acceleration significantly.

Thus, the weight of the person does not decrease. It remains approximately the same at 980 N, assuming negligible changes in gravitational acceleration due to the altitude difference.

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Answer:

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Answer:

B

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Explanation:

Answer:

B - 32.52

Explanation:

Hope this Helps!

:)

Answer:  

Explanation:

The frequency of wave that wave has a wavelength of 0.39 m and a speed of 86 m/s is 220.5 Hz

v = λ / T

f = 1 / T

v = f λ

v = Wave speed

λ = Wavelength

T = Time period

f = Frequency

λ = 0.39 m

v = 86 m / s

f = v / λ

f = 86 / 0.39

f = 220.5 Hz

This equation is just a different version of velocity formula which is distance divided by time. In terms of a wave the distance is wavelength and time is time period T.

Therefore, the frequency of wave is 220.5 Hz

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Answer:

Explanation:

Work = Force*Distance

300 = 84*d

d = 3.57 meters

Answer:

825 Joules of energy would be correct if my math is right.

This is a measurement of relative air speed, also known as true airspeed.as the airplane flies, the probe measures relative air speed. what type of measurement is this.

What is airspeed?

Airspeed is the speed of an aircraft relative to the air through which it is moving. It is typically measured in knots, nautical miles per hour (knots), or kilometers per hour (kph).

Airspeed is important for pilots to know in order to safely and accurately navigate the airspace. An aircraft's airspeed has an effect on its performance, such as the rate of climb or descent, rate of turn, and stall speed. Airspeed is also important for aircraft designers, as it can affect the aerodynamic performance of the aircraft.

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The planetary properties are given as follows:

Orbital Period and Distance: All of the primary detection methods provide an orbital period, which may be used to compute orbital distance. Doppler and astrometric approaches can be used to calculate orbital eccentricity.

Planetary Mass: A larger planet will lead its star to travel faster around its center of mass. Transit observations can determine the size/radius of a planet.

The density of the Planet: It is possible to provide a transit method size and a dopplers technique with mass.  Temperature and Atmospheric Composition.

According to the rules, a planet must perform three things:

Planets differ in attributes because they are at various distances from the sun, have different sizes, and are formed of different materials than the Earth. Very small planets lack the gravitational field required to retain much of their atmosphere.

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The current drawn by the bus is 73.3 ampere.

The amount of AC current that an amplifier uses when it is in use is referred to as "current draw." All channels are operated concurrently while measurements are taken for a range of idle loads, 1/8 of average full power, 1/3 of average full power, and full power.

P = IV, where P is power, I is current, and V is voltage, can be used to calculate power.We need to convert the power to watts and the voltage to volts:

59 hp = 44,000 W (since 1 hp = 746 W)

V = 600 V

The distance between the cables is not needed for this calculation.

We may now rearrange the equations to find I:

I = P/V = 44,000 W / 600 V = 73.3 A

Therefore, the current drawn by the bus is 73.3 A.

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Answer:

It is when the focus of the ellipse that is closer to the point where Mars is moving the fastest.

Explanation:

I hope it helps! Have a great day!

Anygays-

Answer:

0 kg m/s

Explanation:

before the bullet is shot the velocity of the gun & the bullet is 0.

Answer:

0 kg-m/s

just did it ;D

Explanation:

a) The electrical power in Watts in a machine delivering 20 HP is 14915.44 Watts.

b) The electrical power in Watts in a machine delivering 100 CV is 73549.77 Watts.

c) Electrical machines can be classified into two types: AC machines and DC machines, based on the nature of electric current they use.


a) The formula to calculate electrical power is P = (HP × 746).

In this case, P = (20 HP × 746) = 14920 Watts.

Therefore, the electrical power in Watts in a machine with 20 HP is 14915.44 Watts.

b) The formula to calculate electrical power is P = (CV × 735.5).

In this case, P = (100 CV × 735.5) = 73549.77 Watts.

Therefore, the electrical power in Watts in a machine with 100 CV is 73549.77 Watts.

c) Electrical machines can be classified into two types: AC machines and DC machines, based on the nature of electric current they use. AC machines use alternating current, while DC machines use direct current.

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Answer:

Hypothesis.

Explanation:

Not a question, not a summary, and not an experiment.

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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The amount of heat needed to change the temperature of the hydrogen gas from 50 K to 100 K is 214.5 J.

To calculate the amount of heat needed to change the temperature of the hydrogen gas, we can use the equation:

Q = m * c * ΔT

where:

Q is the heat transferred,

m is the mass of the gas,

c is the specific heat capacity of the gas, and

ΔT is the change in temperature.

Mass of hydrogen gas (m) = 0.30 g

Change in temperature (ΔT) = 100 K - 50 K = 50 K

The specific heat capacity of hydrogen gas is typically around 14.3 J/g·K.

Substituting the given values into the formula, we can calculate the amount of heat (Q):

Q = (0.30 g) * (14.3 J/g·K) * (50 K)

Q = 214.5 J

Therefore, the amount of heat needed to change the temperature of the hydrogen gas from 50 K to 100 K is 214.5 J (joules).

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The force was applied for approximately 1.89 seconds.

To calculate the time for which the force was applied, we can use Newton's second law, which states that force is equal to the mass of an object multiplied by its acceleration. In this case, the force applied to the cart is 9.72 N, and the mass of the cart is 1.05 kg. We can rearrange the equation to solve for acceleration: force = mass × acceleration.

Using the equation for acceleration, we can calculate the acceleration experienced by the cart by dividing the force by the mass: acceleration = force / mass. Once we have the acceleration, we can use the kinematic equation, v = u + at, where v is the final velocity, u is the initial velocity, a is the acceleration, and t is the time.

Rearranging the equation to solve for time, t = (v - u) / a, we can substitute the given values. The change in velocity is 18.52 m/s (v - u), the force is 9.72 N, and the mass is 1.05 kg. Plugging in these values, we can calculate the time: t = (18.52 m/s - 0) / (9.72 N / 1.05 kg) ≈ 1.89 seconds. Therefore, the force was applied for approximately 1.89 seconds.

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Answer:

Technology is the application of scientific knowledge to the practical aims of human life or, as it is sometimes phrased, to the change and manipulation of the human environment.

Please Mark it as brainlist answer.

Answer:

See below

Explanation:

Kinetic Energy = 1/2 * m * v^2

                        = 1/2 * 200 * (15)^2 = ________ joules

The kinetic energy of the 200 kg object moving with a speed of 15 m/s is 11250 Joules (J).

Given:

Mass of the object (m) = 200 kg

Speed of the object (v) = 15 m/s

For the kinetic energy (KE) of an object, we use the formula:

KE = (1/2) × m × v²

where:

KE is the kinetic energy,

m is the mass of the object,

v is the speed of the object.

The kinetic energy of the object:

KE = (1/2) × 200 × (15 )²

KE = (1/2) × 200 × 225

KE = 11250

KE = 11250 Joules (J)

Therefore, the kinetic energy of the 200 kg object moving with a speed of 15 m/s is 11250 Joules (J).

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The motion of the rocket labeled a is an example of motion with uniform (i.e., constant) velocity and non- zero acceleration.

A body when covers an equal distance with an equal interval of time, this condition of the velocity is known as uniform velocity. Or, we can say that when the direction and magnitude of speed of a body do not change with time, then the body is said to be at uniform velocity.

Having a non-zero acceleration means having any amount of acceleration whatsoever. This could be either positive acceleration or negative acceleration (a.k.a. deceleration).

An object experiences a non-zero acceleration when it is speeding up, slowing down, or remaining at the same speed while changing direction. Any of these three scenarios would result in an object's velocity changing since velocity is the change in an object's position over time, and a change in velocity means the object is experiencing acceleration.

Conversely, an object has zero acceleration when it either remains stationary or moving at a constant speed in a straight line. In both of these scenarios, the velocity of the object is constant, so there is no acceleration.

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Mass loading refers to the amount of a substance that is transported across a given area over a specific time period.

In the context of a composite linear system, this could refer to the amount of chloride or methylene chloride that is passing through the liner over time.
To develop mass loading versus time plots for these substances, you would need to measure the flux (rate of mass transport per unit area) over a period of time and plot it against time. This would give you a graph that shows how the mass loading changes over time.
To estimate the mass loading at 100 years, you would need to extrapolate the trend from your plot to 100 years and calculate the total mass that would have been transported over that time period. This can be done using a spreadsheet solution that takes into account the flux, area of the cell, and time period.
Keep in mind that the mass loading of these substances can be influenced by a variety of factors, including the properties of the liner material, the concentration of the substance, and the conditions of the environment in which the liner is located.

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If we increase the length of the resistor, resistance will also increase and vice-versa.

It is given that in a wire simulation, we have to adjust only the length of the resistor.

It required to find the effect on resistor when adjust only the length of the resistor.

As we know that the length is directly proportional to the resistance of the wire that means is we increase the size or length of the wire then it also increase the resistance present in the wire. On the other hand if we decrease the length of the wire, it will decrease the resistance. This can be represented as:

Resistance = resistivity × length/area

This is also because there is more collision of the flowing electrons in the wire to the metal ions present there.

Thus if we increase the length of the resistor, resistance will also increase and vice-versa.

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Answer:

gravity is changed by a factor of 10/16

Explanation:

gravitational force =  m1 m2 G / r^2    now change the m1  and  r

                               = 10 m1 m2 G/ (4 r)^2

                               = 10 /16  m1 m2 G / r^2

10 /16  the earth's gravity

A metallic enclosure that prevents the entry or escape of an electromagnetic field is known as a Faraday cage.

This type of cage was first invented by Michael Faraday in 1836 and is used to protect electronic devices from electromagnetic interference. A Faraday cage works by absorbing electromagnetic waves and distributing them evenly around the exterior surface of the enclosure. This prevents any electromagnetic energy from penetrating the interior of the cage. Faraday cages are often used in sensitive electronic equipment, such as medical devices, military equipment, and communication systems, to prevent damage or interference. They can be made from a variety of materials, including metal mesh, foil, or solid metal sheets. To be effective, the enclosure must be completely enclosed and grounded to prevent any leakage of electromagnetic energy.

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Since these three vehicles would all go the same speed at the bottom if released from the same height, they would not all possess the same amount of kinetic energy because they have different amounts of potential energy.

Kinetic energy is dependent on the velocity of the object as well as its mass. Therefore, the three vehicles, though they have the same speed, would differ in their kinetic energy due to their varying mass. This concept is known as mechanical energy and is the sum of kinetic and potential energy.

Mechanical energy is also constant in an ideal situation where no external forces are acting upon the object. For instance, the three vehicles will all have the same mechanical energy at the release point but would not possess the same amount of kinetic energy due to their mass difference. Therefore, they would have different amounts of potential energy when released.

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