3) connect two lamps to a power supply in series and current drawn from the power supply is is. connect the same two lamps in parallel and the current drawn from the power supply is ip. how does the current drawn by the series circuit compare to the current drawn by the parallel circuit?

This soccer technology fair challenge serves to acquaint college students with simple records of how the quantity of air in a football ball can have an effect on the distance it travels while kicked with the regular force.

Velocity / (vɪˈlɒsɪtɪ) / noun plural ties the pace of movement, motion, or operation rapidity; swiftness. physics is a degree of the charge of the movement of a frame expressed as the price of alternate of its role in a specific route with time.

Now that the variety of projectile is given by R = u 2 sin ⁡ 2 θ g, while could be most for a given preliminary speed velocity is the directional velocity of an item in movement as a demonstration of its fee of change in position as observed from a particular body of reference and as measured by using a specific trendy of time.

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The tensile strength of rod A and B are equal and also greater than  Rod C tensile strength. The order will be C < B = A for different Cross-sectional Areas of the given rods.

for A,

Cross-sectional Area, A = 1mm²

A = 1 × 10^-6m²

Force, F = 200N

the formula of tensile strength will be,σ = F/A

                                                               σ = 200/1×10^-6

                                                               σ = 200 × 10^6 N/m²

                                                               σ = 200 Mpa

for B,

Cross-sectional Area A = 1mm²

A = 1 × 10^-6m²

Force applied F = 200N

the formula of tensile strength will be,σ = F/A

                                                               σ = 200/1×10^-6

                                                               σ = 200 × 10^6 N/m²

                                                                σ = 200 Mpa

for C,

Cross-sectional Area A = 2mm²

A = 2 × 10^-6m²

Force applied F = 100N

the formula of tensile strength will be,σ = F/A

                                                               σ = 100/2×10^-6

                                                               σ = 50 × 10^6 N/m²

                                                               σ = 50 Mpa

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Some bacteria only use one photosystem. The  difference is in electron donor . Both have different electron donors .

Both bacteria and photosynthesis have different electron donors .

In bacterial system, H2S  mostly acts as an electron donor

And in the plant system, H2O acts as an electron donor

Hence , oxygen is produced in plant photosynthesis but not in bacterial photosynthesis.

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This is one of the example of Newton's third law of motion. The first two options are the right answers

Momentum is the product of mass and velocity. According to conservation of linear momentum, the sum of momentum before collision is equal to the sum of momentum after collision.

What happens when a boater pushes against the water with an oar?

The water pushes back because according to Newton's third law, in any action, there must be equal and opposite reaction. Also, the boat will move in the opposite direction.

The water will not have more force than the oar neither will the oar has more force than the water because in any action.

Therefore, when a boater pushes against the water with an oar, the water pushes backward and the boat moves in the opposite direction.

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When 2. 00 kJ of energy is transferred as heat to nitrogen in a cylinder fitted with a piston with an external pressure of 2. 00 atm, the nitrogen gas expands from 2. 00 to 5. 00 l. The change in internal energy of this system will be ΔU= 1.3922 KJ

Work done on the system taken as negative and work done by the system taken as positive.

Work done by the gas W

Work = P ΔV

W= P ( V₂- V₁)

W= 2 ( 5 - 2)

W= 6 atm L or 0.6078 KJ

using first law of thermodynamics

Q= W + ΔU

2 = 0.6078 +  ΔU

ΔU= 1.3922 KJ

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The total chemical energy transformed in this exercise is 580 kJ.

Chemical energy is the strength of chemical substances this is launched after they undergo a chemical response and transform into different substances. a few examples of garage media of chemical power consist of batteries, meals, and gas.

Chemical power is strength stored within the bonds of atoms and molecules. Batteries, biomass, petroleum, natural fuel, and coal are examples of chemical electricity. Chemical energy is converted to thermal strength whilst people burn wood in a hearth or burn gasoline in a vehicle's engine.

Calculation:-

time, t = 20min = 1200s

average metabolic power of cyclist = 480 W

metabolic energy can be calculated as

ΔE = PΔt =480 *1200 = 576000 J ≈ 580000 J = 580 kJ

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The maximum angle of displacement of the swinging pendulum is 16°

Given,

m2 6.5kg,

F = 30N,

t=0.30s

use,

Impulse (I) = F xt mv = F xt v- Fxt m 2 X 0.3 - coso - 0.0157

cos o = 0.984

o cos (0.984) 10

16°

Displacement is a vector amount that refers to "how far out of vicinity an object is"; it's miles the item's universal alternate in role.

The displacement, defined as the exchange in function of the object, is a vector with the value as a distance, inclusive of 10 miles, and a route, such as east. Velocity is a vector expression with a magnitude identical to the speed traveled and with an indicated direction of movement.

Displacement  (symbolized d or s ), also referred to as duration or distance, is a one-dimensional amount representing the separation among two defined points. the same old unit of displacement within the worldwide machine of devices (SI) is the meter (m).

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A large semitrailer truck and a small car have equal momentum. How do their speeds compare?

The truck has a much lower speed than the car.

what is speed?

We've all heard of speed, and when we're driving quickly, we're conscious of it. We may check the speed of our vehicle while we go from point A to point B by looking out the window. No matter how tiny or large, how heavy or light it is, if something is moving, it has speed. But what precisely is speed, how does it operate, and what are some instances of speed in daily life?

As the truck has the highest weight and the small car was having the less weight when compared to the truck,

the truck has the lower speed than the small car

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la formule stp et ensuite je ferais le calcul

The angle formed between the vectors of centripetal acceleration and centripetal force is 90∘ The centripetal force and the tangential velocity are perpendicular to each other in a circular motion, that is, they make an angle of 90∘90∘ with each other.

A net force that keeps an object moving in a circular motion is known as a centripetal force. The centripetal force causes angular or circular motion by pulling or pushing an item in the direction of the centre of a circle as it moves. The stress on the rope pushes the object toward the centre when you spin a ball on a string or twirl a lasso.

The centripetal force is directed towards the centre of the circular route both along the radius and at right angles to the motion.

Centripetal force is described as the force applied to a body that is travelling in a circle and is pointed in the direction of the body's centre of mass. The terms centrum, which means "centre," and petere, which means "to seek," are the origins of the phrase. The center-seeking force might be referred to as centripetal force.

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When you approach a steady light source, the wavelength of the emitted light appears longer.

Only a small portion of the electromagnetic radiation spectrum is visible light, yet it contains the only band of frequencies to which the rods and cones of the human eye are responsive. The wavelengths that people can generally see fall within a fairly small range, roughly between 400 and 700 nanometers. Due to the presence of particular nerve endings that are sensitive to this frequency range in the eyes, humans are able to view and react to stimuli produced by visible light. The rest of the electromagnetic spectrum, however, is unseen.

Electromagnetic radiation is emitted from a wide range of sources, and these sources are often grouped based on the particular spectrum of wavelengths they produce.

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In order for a rocket ship in deep space far from any other objects to move in a strait line with constant speed it must exert a net force that is zero

force = mass * acceleration

        = mass * ( change in speed / time )

since , rocket ship is moving with a constant speed , hence no change of speed is taking place . Hence , acceleration will be zero .

This implies net force will be equal to zero

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The final velocity of the apple depends on acceleration and time.

What is velocity?

The velocity of an object is defined as the ratio of its travel distance to time. Because velocity is a vector quantity, it requires both magnitude and direction.

Given that an apple falls from a tree at a distance of 3.2 m. If the gravitational acceleration is 9.8 m/s2. The following formula will be used to calculate the final velocity of the apple: -

Time = √ ( 2s)/g)

Time = √ ( 2 x 3.2 )/9.8)

Time = 0.8 second

Acceleration = velocity/time

velocity = acceleration X time

velocity = 9.8 X 0.8

velocity = 7.34 m/s

As a result, the final velocity of the apple is 7.34m/s.

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There are a few major exceptions to these general trends: Planets with unusually tilted axes. Moons that are unusually huge. Moons that have peculiar orbits.

What is solar system?

The Solar System is composed of the Sun and the objects that orbit it. It was created by the gravitational collapse of a massive interstellar molecular cloud 4.6 billion years ago. The Sun contains the great bulk of the system's mass, with Jupiter holding the majority of the remaining mass.

All planets and most moons have roughly circular orbits that travel in the same plane in the same direction.

The Sun and the majority of the planets also rotate in this direction.

Small, stony terrestrial planets in close proximity to the Sun

Further out, there are larger, hydrogen-rich Jovian planets.

The moons and rings of the Jovian planets are comprised of rock and ice.

The asteroid belt is densely packed with asteroids.

Comets can be found in the Kuiper belt and the Oort cloud.

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The time taken is 15.7 seconds and the displacement of the woman is 172.9 m.

We know that when we apply the brakes, the vehicle would come to a stop. As such, the brakes do apply a kind of braking force to the vehicle as we can see. We are required here to obtain the time that was taken for the vehicle to brake.

Now we have;

initial velocity = 22 m/s

Acceleration = 1.4 meters per second squared

Final velocity = 0 m/s

a) Given that;

v = u - at

v = 0 m/s hence;

u = at

t = u/a

t =  22/ 1.4

t = 15.7 s

Her displacement can be obtained from;

x = ut - 1/2at^2

x = 22(15.7) - (0.5 * 1.4 * (15.7)^2)

x = 345.4 - 172.5

x = 172.9 m

The woman is going to have the calculated displacement of 172.9 m.

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Explanation:

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It is to be noted that removing the reflector material from the lid will diminish the amount of sunlight getting into the solar cooker. This invariably will reduce the amount of power generated because of the transfer of thermal energy.

Thermal energy is the energy contained inside a system that controls its temperature. The passage of thermal energy is defined as heat. Thermodynamics is a discipline of physics that deals with how heat is transmitted between various systems and how work is done in the process Refer to the first law of thermodynamics.

Cooking, drying, heating, smoking, baking, chilling, and manufacturing are all examples of productive thermal energy usage.

Work occurs when an item moves as a result of the application of force. While thermal energy does not exert force like a push or pull, it does create movement in the particles of an item or system. When high thermal energy particles engage with another item, they cause the particles of that object to travel faster and so do work on that object.

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Answer:

D. 50m

Explanation:

After drawing a diagram, we can see that we end at 40 meters east and 30 meters south of the origin.

Because displacement is a vector quantity, it can be broken down into components in its x and y directions.

We can use trigonometry to determine the hypotenuse length (displacement).

Pythagoras's theorem says a^2+b^2=c^2.

Thus:

30^2+40^2=c^2

900+1600=c^2

2500=c^2

sqrt(2500=sqrt(c^2

50=c

Therefore, your answer is D, 50m.

The force f needed to support a 1000-lb load at the output piston is 4.34 lb

Friction is the force resisting the relative motion of sturdy surfaces, fluid layers, and material factors sliding towards each specific. There are numerous styles of friction: Dry friction is a strain that opposes the relative lateral movement of two stable surfaces in touch.

Calculation:-

applying the torque

F input (3.0 in) = F (15 in)

  F = F input (d input /2)² / (d output /2)²

      = 21.7 lb (3.0) /15 in

     = 4.34 lb

Friction is the shape of contact pressure. It exists between the surfaces that are in touch. The frictional force relies upon the character of the floor in contact. The rougher the ground, the extra friction is involved. The frictional force is proportional to the urgent pressure, which is the burden of the body. it's miles impartial of the place of the touch.

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The new centripetal force becomes one fourth of the original force.

What is centripetal acceleration ?

Centripetal acceleration, the acceleration of a body in a circular orbit. Since velocity is a vector quantity (that is, it has both magnitude, velocity, and direction), as an object moves along a circular path, its direction and velocity constantly change, resulting in acceleration. Acceleration is  radially towards the center of the circle. The centripetal acceleration ac has a magnitude equal to the square of the body velocity v along the curve divided by the distance r from the center of the circle to the moving body. That is, ac = v2/r. Centripetal acceleration has units of meters per square second. Force which causes this acceleration is also directed toward the center of the circle and is called the centripetal force.

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The inductance the circuit should have for its current to oscillate with the same frequency as the mass and spring if the capacitance is 1.6 F is 0.53 H

√ k / m = √ 1 / L C

k = Spring constant

m = Mass

L = Inductance

C = Capacitance

m = 1.6 kg

k = 1.9 N / m

C = 1.6 F

√ 1.9 / 1.6 = √ 1 / ( 1.6 L )

1.1875 = 1 / 1.6 L

L = 1 / ( 1.1875 * 1.6 )

L = 0.53 H

Capacitance is the property of an electric conductor. It is measured by the amount of separated electric charge that can be stored. Inductance is measured by the size of EMF induced in it compared to the rate of change of electric current that produces the voltage.

Therefore, inductance the circuit should have for its current to oscillate with the same frequency as the mass and spring if the capacitance is 1.6 f is 0.53 H

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The magnitude of an earthquake releasing 2.5×10¹⁵ joules of energy is

9.95 × 10¹⁰.

In physics, magnitude is simply defined as "distance or quantity." It displays an object's size or motion in either an absolute or relative sense. It is a way of describing the size or scope of something. In physics, magnitude typically refers to a length or a size.

The most common way to gauge the size of an earthquake is by its magnitude. It serves as a gauge of an earthquake's sole source's size. Therefore, it is the same no matter how or where you perceive it, and the following calculation can be described as follows:

Given formula

Magnitude M = 2/3 log E/E₀

The least amount of energy released by such an earthquake must be allocated to, where E is the energy released in Joules and E₀ = [tex]10^{4.4}[/tex]

earthquake releasing 2.5×10¹⁵ joules of energy

M = 2/3 log E/E₀

M = 2/3 log 2.5×10¹⁵/[tex]10^{4.4}[/tex]

M = 9.95 × 10¹⁰.

The magnitude of an earthquake releasing 2.5×10¹⁵ joules of energy is

9.95 × 10¹⁰.

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Angle formed between the vectors of centripetal acceleration and centripetal force is 0°.

Centripetal force is a pressure that acts on an object with a view to direct it closer to a center of curvature. The force generated by means of your arm puts the yo-yo itself in movement, and the tension on the string continues it moving in a circular direction as you twirl it.

One common place instance concerning centripetal pressure is the case wherein a body actions with uniform pace along a circular route. The centripetal force is directed at proper angles to the movement and also alongside the radius closer to the centre of the round route.

Centripetal force is a force on an object directed to the center of a round path that maintains the object at the route. Its price is based totally on three factors:

1) The speed of the item because it follows the round route;

2) The object's distance from the center of the route;

3) The mass of the object.

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Answer:

Newton's First Law of Motion

Explanation:

this law is an explanation to why inertia exits too, and since the law of inertia is also Newton's First Law of Motion, therefore the answer is 'First'

Answer:896/10 JOULES.

Explanation:

 The height above the cannon’s mouth that the net be placed should in order to catch the daredevil is 2.86m.

What is Maximum Height in Projectile motion?

This refers to the highest height of the object in projectile motion and it is dependent on the initial velocity, the launch angle, and the acceleration due to gravity. It is measured in “meters”.

It is calculated using The Formula:

H=(v₀)² *sin²θ

        2×g

where,

H =Maximumheight

v₀ = initial velocity

sinθ =Sine of launch angle

From the question:

v₀= 25.4m/s

g = (9.81ms/²)

Sin θ= 37.4°

calculating Maximum height:

H=( 25.4)² *sin²37.4°

      2×9.81

H  = 2.86m

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By converting the 400 nm wavelength of violet light into meters we are get 4.0.10^-7.

What is wavelength?

wavelength can be defined as the distance between two successive crests or throughs of a wave. It is measured in the direction of the wave.

The wavelength of light defined as the distance between the two successive crests or throughs of the light wave.

The wavelength of light is the distance between corresponding point in two adjacent light cycles and the frequency.

Convert the unit for 400nm-

4.0.10^-7

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The velocity of the projectile just prior to the collision would be 167.31 m/s.

with respect to the Principle of Energy Conservation, we can write

U1 + K1 = U2 + K2

where U1 and U2 are the Initial and final gravitational potential energies.

and K1 and K2 are the Initial and final kinetic energies.

Putting all the appropriate values of the gravitational potential energy and kinetic energy, we get

(m+M)g (y2 - y1)  =  (1/2) x (m+M) x ([tex]V1^{2} - V2^{2}[/tex])

or, g(y2-y1) = (1/2) x  ([tex]V1^{2} - V2^{2}[/tex])

so , v1 we can write

v1 = [tex]\sqrt{v_{2} ^{2} + 2 * g * (y2-y1)}[/tex]

v1 and v2 are the initial and final speed

Now, since the collision is inelastic collision, so we can write

where,

[tex]mv_{0p}[/tex] is Velocity of the project prior to the collision, measured in meters per second.

[tex]Mv_{0B}[/tex]  Velocity of the ballistic pendulum prior to the collision, measured in meters per second.

As we know that from quetion, v2 = 0 ; g = 9.8 , y2-y2 = 14cm = 0.14 m , m = 0.025 kg, M = 2.5kg and v0B = 0 ,

so putting all values

v1 = [tex]\sqrt{0^2 + 2 * 9.8 * 0.14}[/tex]

v1 = 1.6565 m/s

again solving for [tex]v_{0p}[/tex] ,

[tex]mv_{0p}[/tex] =     [tex]= (m+M) v1 - Mv_{0B}[/tex]

Vop  = 167.31 m/s

Hence the velocity of the projectile just prior to the collision is 167.31 m/s.

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