Draw the net force arrow on the picture to the left.
force arrow on the picture to the left.

Answer:Answer is A:The energy from the waves of light coming from bright lights would add up and free an electron.

Explanation:

1. They collect evidence and make sure that the model can be used with reasoning to explain the evidence.

2. The energy from the waves of light coming from bright lights would add up and free an electron.

3. The spots are the result of interference, which happens with waves but not particles.

4. This is not something that waves do because they need a medium to travel through, while particles do not.

5. When the electromagnetic wave peaks overlap, a bright fringe forms.

I promise this is correct because i failed and this is what it said if this is ever wrong they must have changed the quick check

The work done by the dog is 0.81J.

Work done is a measure of energy expended in moving an object; most commonly calculated by multiplying the force by the distance.

It is said that no work is done if the object does not move.

The work done on an object is the amount of energy transferred to an object through work.

According to this question, a dog lifts a 0.75 kg bone straight up through a distance of 0.11 m. The force applied to break the bone must be calculated first as follows:

Force = mass × acceleration

Force = 0.75kg × 9.8m/s²

Force = 7.35N

Work done = 7.35N × 0.11m = 0.81J

Therefore, 0.81J is the work done by the dog.

Learn more about work done at: https://brainly.com/question/2750803

#SPJ1

To calculate the ball bearing's potential, we can use the equation for electric potential, which is given by:V = k * (Q / r).The ball bearing's potential is approximately 5.70 × \(10^{-7}\) volts.

In this case, we are given the diameter of the ball bearing, so we need to calculate the radius (r) first:

Radius (r) = Diameter / 2 = 1.40 mm / 2 = 0.70 mm = 0.70 × \(10^{-3}\) m

The excess charge is given as 2.20 × \(10^{9}\) electrons. To convert this to Coulombs, we need to multiply it by the elementary charge (e), which is approximately 1.602 × \(10^{-19}\) C.

Charge (Q) = (2.20 × \(10^{9}\)) × (1.602 × \(10^{-19}\)) C

Now we can calculate the potential (V):where k is the Coulomb constant (k ≈ 8.99 × \(10^{9}\)10^9 \(N m^2/C^2\)),

V = (8.99 × \(10^{9}\) \(N m^2/C^2\)) * [(2.20 × \(10^{9}\)) × (1.602 ×\(10^{-19}\) ) C] / (0.70 × \(10^{-3}\) m)

Calculating this expression gives:

V ≈ 5.70 ×\(10^{-7}\)  V

Learn more about potential here ;

https://brainly.com/question/24159266

#SPJ11

Using g = 9.8 m/s2, the statement that best describes the roller coaster car when it is at the top of the loop-de-loop is that The car has both potential and kinetic energy, and it is moving at 24.6 m/s. The correct answer is B) The car has both potential and kinetic energy, and it is moving at 24.6 m/s.

Potential energy is the energy that is stored in any object or system as a result of its position or component arrangement. The environment outside of the object or system, such as air or height, has no impact on it. In contrast, kinetic energy refers to the energy of moving particles inside a system or an item.

The energy an individual or an object has as a result of motion in this case, the motion of the falling apple is known as kinetic energy. Potential energy, which exists in a bike that is parked on top of a hill, is converted to kinetic energy when you start riding it downhill. These two energies are both expressed as joules.

Learn more about potential and kinetic energy:

https://brainly.com/question/26882692

#SPJ4

Answer: B (The car has both potential and kinetic energy, and it is moving at 24.6 m/s.)

Explanation:

Answer:

Their deceleration is - 19 \(\frac{m}{s^{2} }\)

Explanation:

Acceleration is a quantity that indicates how the speed of the object changes over time. In other words, acceleration is a vector quantity that relates changes in velocity to the time it takes to occur. It is normally represented by the letter a and its unit of measurement, in the International System it is meters per second squared \(\frac{m}{s^{2} }\).

The mathematical expression for the acceleration is:

\(a=\frac{final speed - initial speed}{final instant - initial instant}\)

In this case:

Replacing:

\(a=\frac{0 \frac{m}{s} - 2.8\frac{m}{s} }{0.15 s - 0s}\)

a= -18. 667 \(\frac{m}{s^{2} }\) ≅ -19 \(\frac{m}{s^{2} }\)

Deceleration is a quantity that expresses the passage of a moving body from one speed to a lower speed. Mathematically it is calculated as the acceleration but the result will be a negative acceleration.

Their deceleration is - 19 \(\frac{m}{s^{2} }\)

Nuisance static charges are more likely to occur when the air is dry.

When the air is dry, it is not able to hold a sufficient amount of moisture or humidity. When the moisture content of the air is low, the air has a low electrical conductivity, which increases the likelihood of static charges.Static electricity can be created by the rubbing of two objects. When these objects are separated after rubbing, they are left with a static electric charge. The strength of the electric charge is determined by the materials used to create the two objects. Some materials are better at holding static charges than others.

Dry air only exacerbates the situation. Static charges can be a nuisance for a variety of reasons. They can cause shocks, interfere with electronic devices, and can even cause damage to sensitive equipment. In order to reduce the occurrence of static charges, it is important to ensure that the air in your environment is sufficiently humid. This can be achieved by using a humidifier or by simply placing bowls of water around the room. Additionally, anti-static products, such as sprays and mats, can be used to reduce the occurrence of static charges.

to know more about Static charges visit:

https://brainly.com/question/31537110

#SPJ11

Bulk modulus of Oxygen is 1.44×10^5 Pa

Given:

mass of Oxygen = 39.9 g

volume of Oxygen = 27.9 l

speed of sound in oxygen = 342 m/s

To Find:

Bulk modulus of Oxygen

Solution:

The density of oxygen gas is

ρ = 0.0399/0.0279 = 1.43 kg/m^3

From v = √B/ρ we find

B = v^2ρ

B = (317 m/s)^2 x (1.43 kg/m^3)

B = 1.44×10^5 Pa

Hence, Bulk modulus of Oxygen is 1.44×10^5 Pa

Learn more about Bulk modulus here:

https://brainly.com/question/24179667

#SPJ4

Answer:

0.000025s

Explanation:

Period it’s. : T(s)= 1/f(Hz)=1/40000Hz=0.000025s

(a) Numerical value of the ratio 3GM/rc² at the surface of the sun is approximately 2.12 × 10⁻⁶; (b) Trajectory is a straight line; (c) Radius = r = 3GM = 3 × Gravitational Constant × Mass of Sun, that is  3.762 × 10²⁰ m³s⁻² kg.

(a) We need to find the numerical value of the ratio 3GM/rc² at the surface of the sun. Substitute the given values into the equation. The mass of the sun (M) is 2.0 × 10³⁰ kg. Radius (r) is 7 × 10⁵ km.

Convert the radius from kilometers to meters,

r = 7 × 10⁵ km = 7 × 10⁸⁸ m

Calculating the ratio.

Ratio = (3GM)/(rc²)

\(= \frac{3G(2(10^{30}))}{7(10^{8}3(10^{8}))} \\= \frac{(6.67(10^{-11}))3G(2(10^{30}))}{7(10^{8}3(10^{8}))} \\\\\)

= (13.34 × 10¹⁹)/(63 × 10²⁴)

≈ 2.12 × 10⁻⁶

Numerical value of the ratio 3GM/rc² at the surface of the sun is approximately 2.12 × 10⁻⁶.

(b) We neglect the right-hand side of the equation. That means the differential equation.

d'u = 0

Integrating both sides.

du = 0

Integrating again.

u = constant

This means that the trajectory is a straight line.

(c) We have to find the radius at which the trajectory of light forms a circular orbit around a black hole.

3GMu - u² = 0

3GMu = u²

Dividing both sides by u (assuming u ≠ 0).

3GM = u

Substituting u = 1/r.

3GM = 1/r

Rearranging the equation,

r = 3GM

3GM = 3 * (mass of the sun) * (gravitational constant)

Assuming the mass of the sun (M) is approximately 1.989 × 10³⁰ kg, we can compute,

3GM = 3 * (1.989 × 10³⁰ kg) * (6.67430 × 10⁻¹¹ m^3 kg⁻¹ s⁻²)

3GM ≈ 3.762 × 10²⁰ m³s⁻² kg

Learn more about Gravitational Constant:

brainly.com/question/17438332

#SPJ4

Internal resistance of an 80-watt light bulb requires 0.72 Amps to operate.

Resistance is the action of opposing anything you disapprove of or disagree with; "he encountered a general feeling of resistance from many citizens"; "despite opposition from the newspapers he moved forward"

The opposition should not be viewed negatively. Similar to how friction makes it possible for us to walk, drive, and other activities, it should be valued. Since resistance is known to transform electrical energy into heat, heater coils use resistance to produce heat that may be used for cooking and warming up spaces.

To know more about Resistance visit:

https://brainly.com/question/29427458

#SPJ4

Answer:

The wavelength is about 666.2 nm.

The color is red.

Explanation:

Recall the relationship between frequency and wavelength:

\(\displaystyle c = \lambda \nu\)

Solve for wavelength λ:

\(\displaystyle \lambda = \frac{c}{\nu}\)

Substitute and evaluate. Note that 1 Hz = 1 s⁻¹:

\(\displaystyle \begin{aligned} \lambda & = \frac{(2.998\times 10^{8} \text{ m/s})}{(4.5\times 10^{14} \text{ /s})} \cdot \frac{1\times 10^9\text{ nm}}{1\text{ m}} \\ \\ & = 666.2 \text{ nm}\end{aligned}\)

Therefore, the wavelength of the light is about 666.2 nm.

This corresponds with the red region of the visible spectrum.

Answer:

Option (2)

Explanation:

To find the time taken by the girl we will use the formula,

Time = \(\frac{\text{Distance traveled}}{\text{Speed}}\)

Time taken by a girl who moves down 52 m long and 1.4 m per second,

\(t_1=\frac{52}{1.4}\)

\(t_1\) = 37.14 sec.

Time taken to move through crowded hallway,

\(t_2\) = \(\frac{79}{1.8}\)

\(t_2=43.89\) sec

Time taken to cover 25 m with speed 2.4 meter per sec,

\(t_3=\frac{25}{2.4}\)

\(t_3=10.42\) sec

Total time taken by the girl = \(t_1+t_2+t_3\)

                                             = 37.14 + 43.89 + 10.42

                                             = 91.45

                                             ≈ 91 seconds

Option (2) will be the answer.

If an object is speeding up its acceleration can be positive or negative depending on the direction of motion.

According to mathematics, a negative acceleration indicates that the velocity will be subtracted, while a positive acceleration indicates that the velocity will be increased.

In physics,

A positive acceleration indicates a rising velocity over time.

Negative acceleration describes a speed decrease over time.

A bus or car going at an accelerating rate is said to have positive acceleration.

We may say that it is speeding up in the direction it is moving.

When we use the brake in the previous example, the speed of the car reduces.

Then it experiences a deceleration.

To learn more about acceleration, refer

https://brainly.com/question/18608559

#SPJ4

Answer:

The star's luminosity rises above its previous level. Because it is so cool, the surface will be red, and it will be much farther away from the center than it was during the earlier stages of star evolution. Despite its lower surface temperature, the red giant has a large surface area, which makes it very luminous.

The car traveled a distance of 90 m in that time. The correct option is C.

To find the distance traveled by the car, we can use the equation of motion: distance = initial velocity × time + (1/2) × acceleration × time². In this case, the initial velocity is 18.0 m/s, the time is 5.0 s, and the car comes to rest, which means the final velocity is 0 m/s. Since the acceleration is constant, we can use the equation to calculate the distance traveled.

Plugging in the values, we have:

distance = (18.0 m/s) × (5.0 s) + (1/2) × 0 × (5.0 s)²

distance = 90 m + 0 m

distance = 90 m

Therefore, the car traveled a distance of 90 m in 5.0 s. Option C is the correct answer.

To know more about acceleration refer here:

https://brainly.com/question/30660316#

#SPJ11

The  magnitude and direction of the force on the charge​ is -12 N opposite the electric field

To calculate the force on a charge in an electric field, we make use of the formula below.

Formula

F = E×Q .......................... Equation 1

Where:

From the question,

Given:

Substitute these values into equation 1

Note: The negative sign indicates that the force is in the direction negative of the electric field.

Hence, The  magnitude and direction of the force on the charge​ is -12 N opposite the electric field

Learn more about Electric Field here: https://brainly.com/question/14015797

Answer: A edge 202694020

Explanation:

Answer: the displacement is 8m and the distance traveled is also 8 meters

Explanation:

It travels from -2 to 6, a difference of positive 8, and since that was its initial starting point, displacement is 8m, distance traveled also happens to be 8m

Answer:

8 and 8 (No decimals needed) See attached! :)

Explanation:

Therefore, the current flowing through the portion of the membrane is I = 91.3 mV / R .In this case, the current will increase by a factor of 4.

The amount of current flowing through the portion of the cell membrane can be determined using Ohm's Law, which states that current (I) is equal to the potential difference (V) divided by the resistance (R). Given that the potential difference across the membrane is 91.3 mV and the resistivity of the membrane material is 1.30 x 10^7 Ω·m,

We can calculate the resistance of the membrane by rearranging the formula: R = V/I. However, to determine the resistance, we first need to find the current. Since the current is equal to the potential difference divided by the resistance, we rearrange the formula to solve for current: I = V/R. Therefore, the current flowing through the portion of the membrane is I = 91.3 mV / R.

To calculate the resistance of the membrane, we need to consider the dimensions and the resistivity of the material. The resistivity represents the intrinsic property of the material, while the dimensions affect the cross-sectional area through which the current flows. Given that the membrane has a thickness of 7.50 nm and an area of 1.1 μm x 1.1 μm

We can determine the resistance using the formula: R = ρ * (L/A), where ρ is the resistivity, L is the thickness, and A is the cross-sectional area. In this case, R = (1.30 x 10^7 Ω·m) * (7.50 nm / (1.1 μm x 1.1 μm)). The resulting resistance of the membrane is the resistance of the portion of the membrane through which the current flows.

The resistance is determined by the resistivity and the thickness of the membrane. In this case, the thickness of the membrane is given as 7.50 nm, so it is the side of the membrane that contributes to its resistance. As for the cross-sectional area, the membrane has dimensions of 1.1 μm x 1.1 μm, indicating that both sides of the membrane contribute to the cross-sectional area.

Regarding the second part of the question, if the side dimensions of the membrane portion are doubled while keeping the other values constant, the cross-sectional area of the membrane will increase by a factor of 4. This is because the area is proportional to the square of the dimensions.

According to Ohm's Law, if the resistance remains the same while the cross-sectional area increases, the current will also increase by the same factor. Therefore, in this case, the current will increase by a factor of 4.

Learn more about Ohm's Law click here:

brainly.com/question/1247379

#SPJ11

After watching the Ted Talk, there were still a few questions that I had about supermassive black holes. Firstly, I wanted to know more about the event horizon and what it exactly entails. Although the speaker briefly touched upon this subject, I would have appreciated a more in-depth explanation. Additionally, I would have liked to know more about the role of supermassive black holes in the universe.

For such more question on supermassive

https://brainly.com/question/16470114

#SPJ8

Answer:

exothermic

Explanation:

The percentage of adhesions measured in use that are higher than 0.40 is approximately 22.66%.

For finding the percentage of adhesions that are higher than 0.40, need to calculate the area under the normal distribution curve to the right of 0.40. First, need to standardize the value of 0.40 using the Z-score formula:

Z = (X - μ) / σ

Where X is the value (0.40), μ is the mean (0.37), and σ is the standard deviation (0.04).

Z = (0.40 - 0.37) / 0.04 = 0.03 / 0.04 = 0.75

Next, look up the Z-score of 0.75 in the standard normal distribution table for finding the corresponding cumulative probability. The Z-table tells that the cumulative probability to the left of 0.75 is approximately 0.7734.

Since want the percentage to the right of 0.40, subtract the cumulative probability from 1:

1 - 0.7734 = 0.2266

Therefore, the percentage of adhesions measured in use that are higher than 0.40 is approximately 22.66%.

Learn more about adhesions here:

brainly.com/question/30876259

#SPJ11

The kangaroo's horizontal speed will be 9.7 m/s and its departure speed will indeed be 10.65 m/s.

By observing the pace at which this compressed region moves through the medium, we may determine the sound speed. The sound wave travels at a speed of around 343 meters per second in low humidity at 20 degrees Celsius.

The following equation relates the distance to the direction and initial velocity:

d = [v₀²sin2θ]/g, where θ – the angle of the jump.

Thus, v₀² = gd / (sin2θ) = (9.8×8)/0.69 = 113.62

v₀ = 10.65 m/s ( the take off speed).

The horizontal velocity equals:

vₓ = v₀cos 22° = 10.65 m/s × 0.92 = 9.7 m/s

To know more about speed visit:

https://brainly.com/question/28224010

#SPJ1

The net force between Superman and Spiderman is 3 N, and it acts in the direction of Superman's force.

As per the question, the force exerted by :

Superman against Spiderman = 28 N

Spiderman against Superman = 25 N,

We can determine the net force and its direction by considering the following:

To find the net force, we need to subtract the forces exerted in opposite directions. Since Superman and Spiderman are pulling against each other, we have:

Net force = Force exerted by Superman - Force exerted by Spiderman

Net force = 28 N - 25 N

Net force = 3 N

The net force between Superman and Spiderman is 3 N.

To determine the direction of the net force, we need to consider the signs of the forces. Since Superman's force is greater than Spiderman's force, the net force will be in the direction of Superman's force.

Thus, the net force of 3 N is in the direction of Superman's force.

Therefore, the net force between Superman and Spiderman is 3 N, and it acts in the direction of Superman's force.

To learn more about the forces:

brainly.com/question/28969457

They have a limited supply in nature, therefore if they are used excessively, they will become exhausted.

Today, we recognise that using fossil fuels has a negative impact on the environment. Fossil fuels produce and utilise local pollutants, and their continued use permanently alters the temperature of our entire world.

Wastes from combustion sources are those that result from carbon pollution (i.e., coal, oil, natural gas). Included in this are all ash and particles taken out of the flue gas.

The fossile fuel is limited in nature. So, it should not waste energy from fossil fuels.

More about the fossile fuel link is given below.

https://brainly.com/question/3371055

#SPJ1

(a) The speed as the stone hits the ground is 29.4 m/s (b) The distance at which the stone fell is 44.1 m.

Speed can be defined as the ratio of distance to time.

(a) To calculate the speed at which the stone hit the ground, we use the formula below.

Formula:

Where:

Substitute the values above into equation 1

(b) To calculate the distance the stone fell, we use the formula below.

Where:

Solving for S by substituting into equation 2

Hence, (a) The speed as the stone hits the ground is 29.4 m/s (b) The distance at which the stone fell is 44.1 m.

Learn more about speed here: https://brainly.com/question/4931057

#SPJ1

The acceleration of the block is 6.4 m/s².

To calculate the acceleration of the block, we need to consider the forces acting on it.

The applied force is 40 N, and since it is the only horizontal force in the direction of motion, it is the net force acting on the block.

The frictional force opposing the motion is 8 N.

The acceleration, we can use Newton's second law, which states that the net force acting on an object is equal to its mass multiplied by its acceleration (F = ma).

The net force is the difference between the applied force and the frictional force:

40 N - 8 N = 32 N.

Now, we can plug the values into Newton's second law:

32 N = 5 kg × a.

Solving for the acceleration (a), we get

a = 32 N / 5 kg

a = 6.4 m/s².

Therefore, the acceleration of the block is 6.4 m/s².

For such more questions on

https://brainly.com/question/26408808

#SPJ8