1. which has a greater resistance, a 60-watt bulb or a 40-watt bulb? 2. how does the calculated power compare with the rated power of each bulb in parts (1) and (2)? 3. how does the effective (combined) resistance of the two bulbs in parallel compare with their individual resistances? 4. how does the combined power output of the two bulbs in parallel compare with their combined rated power? 5. when the two bulbs are connected in series, does each lamp draw full power? can you explain why? 6. when two bulbs are connected in parallel and one of the bulbs is disconnected, what happens to the power output of the other bulb?

A substantial body of research has shown that the main neuromodulatory neurotransmitters dopamine (DA), norepinephrine (NE), and acetylcholine (ACh) affect LTP magnitude at the cellular level.

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Explanation:

In uniform gravity it is the same as the centre of mass. For regular shaped bodies it lies at the centre of the that particular body. Hence for a cylinder centre of gravity lies at the midpoint of the axis of the cylinder.

Explanation:

We developed a spherical harmonic series that represents the gravitational potential and its gravity field due to a buried right vertical cylinder. This series can be used at far- and intermediate-regions, and is fast and accurate, using only a few terms. We compared the values of the fields acquired by this new spherical harmonic series, with ones computed by direct numerical integrations, using a fine-mesh structure for a vertical cylinder. Results of the calculations are shown and performances of the two different methods are compared. Faithfulness of the spherical harmonic series is tested with an inversion example.

Answer:

distance = (10/3) m or 3.33... m

Explanation:

When the direction of force and distance is the same,

Work = Force × distance

So,

1000J = 300N × distance

=> 1000J/300N = distance

=> (10/3) m = distance

=> 3.33... m = distance

A gray whale travels an average of 120 km per day as it migrates is an example of Speed.

Speed is the ratio of distance to time taken. It is given by:

Speed = Distance / time

Speed is a scalar quantity, hence it has magnitude and no direction.

Hence, A gray whale travels an average of 120 km per day as it migrates is an example of Speed since the direction of the whale is not given.

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The force of gravity depends on the mass of objects and the distance between them. This is true statement.

Physics defines force as the push or pull that modifies the velocity of a massed object.

The ability to change a body's resting or moving condition is referred to as an external force. There is a magnitude and a direction to it.

You may determine the Force using a spring balance. The SI's measure of force is the Newton.

The force of gravity between two objects is directly proportional to the mass of the object and inversely proportional to the square of the distance between them.

Hence, the force of gravity depends on the mass of objects and the distance between them. This is true statement.

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Answer:

Special metal hangers or stirrups called joist hangers are used when joist must be flush with the bottom of the girder or beam.

Explanation:

Thus, special metal hangers or stirrups called joist hangers are used when joist must be flush with the bottom of the girder or beam.

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Answer:

300 Watt

Explanation:

power=(450/3)*2

The work done by the electric field when the particle has moved through a distance of 3.75 cm from its initial position is equal to F * d or q * E * d.

The work done by the electric field when the particle has moved through a distance of 3.75 cm from its initial position can be calculated using the equation W = F * d, where F is the force exerted by the electric field and d is the distance the particle has traveled.

Since the electric field is a vector quantity, we can express the work done by the electric field as the dot product of the force and displacement vectors, or W = F⋅d. To calculate the work done, we must first calculate the force exerted by the electric field on the particle.

We can calculate the force exerted by the electric field on the particle using the equation F = q * E, where q is the charge of the particle and E is the electric field. Using this equation, we can calculate the work done by the electric field when the particle has moved through a distance of 3.75 cm from its initial position.

Therefore, the work done by the electric field when the particle has moved through a distance of 3.75 cm from its initial position is equal to F * d or q * E * d.

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To solve this problem, we need to use conservation of energy. When the blocks are released, the spring will push them apart and transfer its potential energy to kinetic energy. Since there is no friction, the total mechanical energy will remain constant. Therefore, we can set the initial potential energy equal to the final kinetic energy of both blocks.

The initial potential energy is given as 150.0 J. To find the final kinetic energy of each block, we can use the formula KE = 1/2 mv^2, where m is the mass of the block and v is its speed.

Let's start with block A. Since the blocks are pressed together, they will move with the same velocity after they are released. Let's call this velocity v. Therefore, the initial velocity of block A is 0 m/s and its final velocity is v m/s.

Using conservation of energy:

150.0 J = 1/2 (2.40 kg) v^2

v = √(150.0 J / 1.20 kg) = 10.6 m/s

So block A will achieve a maximum speed of 10.6 m/s.

Now let's move on to block B. Its mass is 3.00 kg, so we can use the same formula:

150.0 J = 1/2 (3.00 kg) v^2

v = √(150.0 J / 1.50 kg) = 9.80 m/s

Therefore, block B will achieve a maximum speed of 9.80 m/s.

Note that we assumed that the blocks move in one dimension (i.e. horizontally) and that there is no external force acting on them. If there were other forces present, the speeds of the blocks would be different.

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Answer:

It is the angle the incident ray makes with a line drawn perpendicular to the reflecting surface

answer:

a. obesity, b. starvation, and d. hair-loss.

Three long-term effects of anorexia is A. Obesity B. Starvation D Hair loss, Hence option A B D is correct.

Obesity is a medical condition, often considered a disease, in which excess body fat has accumulated to the point that it is threatening health. Obesity is defined as having a body mass index (BMI) of more than 30 kg/m2 (a person's weight divided by the square of the person's height); overweight is defined as having a BMI of 25-30 kg/m2. Some East Asian countries calculate obesity using lower values. Obesity is a leading cause of disability and is linked to a variety of illnesses and ailments, including cardiovascular disease, type 2 diabetes, obstructive sleep apnea, some cancers, and osteoarthritis.

Individual, social, and environmental factors all contribute to obesity. Diet, physical activity, mechanization, urbanization, genetic vulnerability, drugs, mental problems, and economic policies are some of the recognized factors.  

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Based on the equations e=hv and e=hc/^lambda, we can say that energy increases as frequency increases. Therefore, FM radio waves with a frequency of 1.015 x 10^8 Hz (101.5 MHz) have less energy compared to visible green light with a frequency of 5 x 10^14 Hz.

To understand this better, we can look at the frequency and wavelength of both the FM radio waves and visible green light. FM radio waves have a lower frequency of 1.015 x 10^8 Hz (101.5 MHz) and a longer wavelength of approximately 3 meters, while visible green light has a higher frequency of 5 x 10^14 Hz and a shorter wavelength of approximately 500 nanometers.

Since energy is directly proportional to frequency and inversely proportional to wavelength, we can conclude that visible green light has higher energy compared to FM radio waves. This is because visible green light has a higher frequency and a shorter wavelength, which means that it carries more energy per photon.

In summary, visible green light with a frequency of 5 x 10^14 Hz has higher energy compared to FM radio waves with a frequency of 1.015 x 10^8 Hz (101.5 MHz) due to its higher frequency and shorter wavelength.

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One of the best defensive driving techniques for windy conditions is driving with both hands on the steering wheel.

When driving in windy conditions, it is essential to take some safety precautions to avoid accidents and maintain control over the vehicle. A vehicle's stability and safety depend on the driver's ability to control it, especially in extreme weather conditions. Driving with both hands on the steering wheel is the most recommended defensive driving technique to stay in control of the vehicle during windy conditions. Besides driving with both hands on the steering wheel, it's essential to maintain a slow and steady speed, pay attention to the wind direction, and stay focused on the road. The strong wind can cause vehicles to drift, sway, or even flip, so it's necessary to keep a safe distance from other vehicles, especially large trucks or buses. When driving on a windy day, it's crucial to remain calm and avoid panic. Sudden movements and reactions can cause the driver to lose control of the vehicle, which could result in a severe accident. Therefore, it's best to stay alert, keep both hands on the steering wheel, and maintain a slow and steady speed to stay safe in windy conditions.

In conclusion, the best defensive driving technique for windy conditions is driving with both hands on the steering wheel, maintaining a slow and steady speed, and keeping a safe distance from other vehicles. Stay focused, stay calm, and stay safe. The answer to the question is: driving with both hands on the steering wheel.

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Answer:

eh

Explanation:

Answer:

C. diet pills

Explanation:

Diet pills affect the body and they can cause serious side effects.

Diet pills represent the type of diet that would most likely cause these types of health problems or difficulties (Option C).

Diet pills are different types of medications that can be used to reduce weight and improve the physical body state.

In conclusion, diet pills represent the type of diet that would most likely cause these types of difficulties (Option C).

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Answer: no se

Explanation:no se

Answer:

Le calcul du courant se fait avec deux éléments : la tension et la valeur de la résistance. Courant (A) = tension (V) / résistance (Ohm) ce qui donne la formule I = U/R.

please mark me as brainalist

Answer:

The wavelength can always be determined by measuring the distance between any two corresponding points on adjacent waves. In the case of a longitudinal wave, a wavelength measurement is made by measuring the distance from a compression to the next compression or from a rarefaction to the next rarefaction.

Explanation:

Thank me later

Answer:

Explanation:

So what you want to do is measure the wavelength for the wavelength by putting the ruler under or above the distance (show in picture).

amplitude you want to measure it inside of the wave. so when measuring move the ruler sideways.

( i hope this makes sense)

Therefore, the magnitude of vector C is 25.

Given:A = 10x - 2yB = 5x + 4yC=2A + BNow we have to calculate the magnitude of vector C.Let's calculate each part of the vector C first;2A = 2(10x-2y) = 20x - 4yB = 5x + 4yC = 2A + B= (20x-4y)+(5x+4y)=25xNow we can calculate the magnitude of vector C by using the formula;|C| = √(Cx²+Cy²+Cz²)Here, we only have two dimensions, so the formula becomes;|C| = √(Cx²+Cy²)|C| = √(25²) = 25. Therefore, the magnitude of vector C is 25.

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The role of the manager within the organization from classical and neoclassical approaches is as follows:Supervision by manager in classical schoolThe classical school of thought emphasized that organizations should be managed in a logical and scientific manner. The manager is the main decision-maker in this approach. Supervision is one of the main roles of a manager in this approach.

The manager ensures that the employees are following the set procedures and rules. They also ensure that the employees are working efficiently and effectively to achieve the set goals and objectives of the organization. The manager is responsible for creating a suitable work environment that enhances productivity.The human relations approach emphasizes the importance of the relationship between the manager and the employees. In this approach, the manager is seen as a mediator between the employees and the organization. The manager is expected to be understanding, supportive, and encouraging towards the employees. They are also responsible for providing the employees with a suitable work environment that is conducive to productivity. The manager's role in this approach is to promote employee morale and motivation by providing incentives and recognition for good performance.The Neoclassical approach is a modification of the classical approach. It focuses on the social and psychological factors that influence employees' behaviour in the workplace. The Neoclassical approach places more emphasis on the employees than the classical approach. The role of the manager in this approach is to ensure that the employees are motivated and satisfied with their work. The manager provides the employees with a supportive and encouraging work environment, where their needs and aspirations are met. The manager is also responsible for ensuring that the employees have the necessary resources to achieve their goals.

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Answer:

The action that would cause the concentration of a solution to remain constant is removing solution from the container.

What is concentration of a solution?

The concentration of a solution is the measure of the amount of solid particles (solute) that has been dissolved in the given amount of a solvent.

Adding water to a solution will dilute the solution, hence changes the concentration of the solution.

Also, adding solute will change the concentration of the solution.

Thus, the action that would cause the concentration of a solution to remain constant is removing solution from the container.

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A motorcycle traveling 35 mi/hr slows as it approaches a stop sign. This is an example of acceleration. Option A is correct.

It is the process of reducing the rate of speed of the vehicle. Deceleration is defined as the rate of change of the velocity(decreasing) with respect to the time.

Final velocity must be zero to stop the vehicle. So that as it approaches a stop sign, a motorbike slows down. This is an illustration of deceleration.

Hence,option A is correct.

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The graph showing F as a function of y shows that D, the cube will oscillate between y=0.05 m and y=0.09 m.

From the graph, the force exerted on the cube increases linearly as the cube is displaced upwards from its equilibrium position at y = 0.07 m. When the cube is displaced to y = 0.05 m, the net force is upward and greater than the weight of the cube. This causes the cube to accelerate upward.

As the cube moves upward, the force exerted by the water decreases until it is equal to the weight of the cube at y = 0.07 m. At this point, the net force on the cube is zero and the cube momentarily comes to rest. The cube then continues to move upward, but the force exerted by the water is now downward, causing the cube to slow down and eventually come to a stop at y = 0.09 m.

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The complete question is:

A 4.0 kg cube is placed in a container of water. A student observes that the cube floats while performing simple harmonic motion. The net force exerted on the cube F represents the sum of the force due to gravity and the force exerted on the cube by the water. A force probe is used to measure F as a function of the cube's distance y from the bottom of the container. The graph shows F as a function of y, where the positive direction is upward. Which of the following statements is correct about the motion of the cube if it is released from rest at a vertical position of y = 0.05 m?

A) The cube will have a constant upward acceleration of 2.0 m/s².

B) The cube will have a constant downward acceleration of 2.0 m/s²

C) The cube will travel upward with a changing. c acceleration until it comes to rest at a position of y= 0.07 m.

C) The cube will oscillate between y = 0.05 m and y = 0.09 m.

Answer:

B because of the friction from the wheels

Answer:

Explanation:

The outward force on the sidewall of the tire due to the air pressure of 38.50 psi is 23,523.74 pounds.

Pressure is the amount of force applied over a given area. It is typically measured in units of Pascals (Pa) or pounds per square inch (psi). Pressure can be caused by a variety of factors, including the weight of the atmosphere, the weight of liquids, and the weight of objects. Pressure is important in many physical phenomena, including the flow of liquids, the transfer of energy, and the propagation of sound. In general, when pressure increases, the volume of the material decreases.

The outward force on the sidewall due to the air pressure of 38.50 psi is calculated by multiplying the gauge pressure by the total area of the sidewall. The formula for this calculation is F = P x A, where F is the outward force (in pounds) on the sidewall, P is the gauge pressure (in psi) and A is the total area of the sidewall (in square inches).

Therefore, the outward force on the sidewall of the tire due to the air pressure of 38.50 psi is 23,523.74 pounds. This value can be found by multiplying 38.50 by 606.47, the total area of the sidewall.

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The outward force (in pounds) on the sidewall due to air pressure is 1,945.18 pounds.

In physics, force is a push or pull exerted on an object to change its motion. It is a vector quantity, meaning it has both magnitude and direction. The standard unit of force in the International System of Units (SI) is the newton (N).

Forces can be classified into two types: contact forces and non-contact forces. Contact forces, such as friction and tension, require physical contact between the two objects. Non-contact forces, such as gravity and magnetism, can act on an object without physical contact.

Forces can also be categorized as balanced or unbalanced. Balanced forces are those that cancel each other out, resulting in no net force acting on an object. Unbalanced forces, on the other hand, produce a net force that causes an object to accelerate.

The outward force on the sidewall of the tire due to air pressure can be calculated using the formula:

F = P × A

where F is the force, P is the pressure and A is the area.

In this case, the gauge pressure is 38.50 psi, the area of one sidewall of the tire is 606.47 square inches. So,

F = P × A = 38.50 psi × 606.47 in² = 23,342.20 in-lbs

To convert in-lbs to pounds, we divide by 12

F = \(\frac{23,342.20 in-lbs }{12}\) = 1,945.18 pounds

So the outward force on the sidewall of the tire due to air pressure is approximately 1,945.18 pounds.

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The minimum initial height h of block 1 such that block 2 just makes it to the top of the loop without losing contact with the ramp is given by the expression 2r + R as given below.

It is given that the system of the two blocks is released from rest at a height h above the bottom of the circular loop of radius R. As per the question, the minimum initial height h of block 1 such that block 2 just makes it to the top of the loop without losing contact with the ramp is to be calculated.The system is released from rest, thus the initial velocity of the system is zero. Due to this, the mechanical energy of the system will remain constant throughout its motion.

We can use the conservation of mechanical energy of the system to solve the problem. Conservation of mechanical energy of the system can be given as -mg (2r + R) + ½ mbv² + ½ mav² = -mgR. Where, mg (2r + R) is the gravitational potential energy of the system at point A when the blocks are at the height of h above the bottom of the circular loop of radius R. Here, a and b denote the velocities of the two blocks at point B when block 2 just makes it to the top of the loop without losing contact with the ramp.

The velocity of the blocks when block 2 just makes it to the top of the loop without losing contact with the ramp is zero. Hence, v = 0. The velocity of the block at the top of the loop is also zero. Thus, va = 0.The minimum initial height h of block 1 such that block 2 just makes it to the top of the loop without losing contact with the ramp is given by the expression 2r + R as given below.-mg (2r + R) + ½ mbv² + ½ mav² = -mgRv = 0, va = 0.

Thus, the minimum initial height h of block 1 such that block 2 just makes it to the top of the loop without losing contact with the ramp is given by the expression 2r + R.

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The initial temperature of the iron was approximately 94.3 degrees Celsius.

To solve this problem, we can use the principle of conservation of energy, which states that the total energy of a closed system is constant.

We can assume that the insulated container and its contents form a closed system, and that the heat lost by the lead is gained by the iron until they reach a common final temperature.

We can use the following equation to relate the heat gained or lost by a substance to its mass, specific heat, and change in temperature:

Q = mcΔT

where

Q is the heat gained or lost,

m is the mass,

c is the specific heat, and

ΔT is the change in temperature.

Since the insulated container is well insulated, we can assume that no heat is lost to the surroundings, so the total heat gained by the iron must equal the total heat lost by the lead:

\(m_{iron} * c_{iron} * (T_{final} - T_{initial}) = m_{lead} * c_{lead} * (T_{initial} - T_{lead})\)

where

\(m_{iron}\) and  \(c_{iron}\)  are the mass and specific heat of iron,

\(T_{final\) is the common final temperature of the iron and lead,

\(T_{initial\) is the initial temperature of the iron,

\(m_{lead\)  and  \(c_{lead\)  are the mass and specific heat of lead, and

\(T_{lead\) is the initial temperature of the lead.

We can substitute the given values into the equation and solve for \(T_{initial\):

\(100 g * c_{iron} * (177°C - T_{initial}) = 100 g * c_{lead} * (T_{initial} - 30C)\)

Dividing both sides by 100 g and rearranging:

c_iron * (177°C - T_initial) = c_lead * (T_initial - 30°C)

c_iron * 177°C - c_iron * T_initial = c_lead * T_initial - c_lead * 30°C

(c_iron + c_lead) * T_initial = c_iron * 177°C + c_lead * 30°C

T_initial = (c_iron * 177°C + c_lead * 30°C) / (c_iron + c_lead)

Substituting the specific heat values for iron and lead (0.45 J/g°C and 0.13 J/g°C, respectively):

T_initial = (0.45 J/g°C * 177°C + 0.13 J/g°C * 30°C) / (0.45 J/g°C + 0.13 J/g°C)

T_initial = 94.3°C

Therefore, the initial temperature of the iron was approximately 94.3 degrees Celsius

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