What does the voltage-current graph above show about the relationship between voltage and current, and how do these properties affect resistance? (AKS 10a, DOK 2) A.
As voltage increases, current decreases and therefore resistance would increase.

B.
As voltage increases, current increases and therefore resistance would remain constant.

C.
As voltage increases, current remains constant and therefore resistance would increase.

D.
There is no relationship between current and voltage and neither affect resistance.

Explanation:

On a position vs time graph (x vs t), displacement is the difference in positions (Δx = x₂ − x₁).

On a velocity vs time graph (v vs t), displacement is the area under the graph (Δx = ∫ v dt).

The distance, s, travelled by the car is 66 m.

The distance travelled by the toy car is calculated using the formula below:

Where:

Distance, s = 5.0 * 6.0 +  2.0 * 6.0²/2

Distance,  s = 66 m

In conclusion, the distance travelled is calculated from the initial velocity, the time taken, as well as the acceleration.

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At the instant shown, the six scenarios can be ranked in terms of the magnitude of current in the light bulb as follows:

1) Scenario 1 - Here, the battery is directly connected to the light bulb without any other resistors in the circuit. Therefore, the current flowing through the bulb will be the maximum among all the scenarios.

2) Scenario 3 - In this case, the battery is connected to the light bulb through a resistor. However, the resistance is less compared to other scenarios, so the current will be higher than in other cases.

3) Scenario 4 - Here, the battery is connected to the light bulb through a higher resistance compared to scenario 3. This will result in a lesser current in the bulb.

4) Scenario 5 - In this scenario, the battery is connected to the light bulb through a much higher resistance than in the previous two scenarios. Therefore, the current flowing through the bulb will be lower.

5) Scenario 6 - Here, the battery is connected to the circuit in such a way that the current will bypass the light bulb. Therefore, the bulb will not light up and the current flowing through it will be zero.

6) Scenario 2 - This scenario is similar to scenario 6 where the switch is open, so the circuit is not complete, and hence there will be no current flowing through the light bulb.

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The wave phenomena described in this scenario is known as interference.

Interference occurs when two or more waves interact with each other, resulting in the reinforcement or cancellation of the waves at certain points in space.

In this case, the two alarm sirens are emitting sound waves that are overlapping and interfering with each other. When the waves from the sirens are in phase, meaning their peaks and troughs align, constructive interference occurs. Constructive interference leads to the amplification of the sound waves, resulting in a louder sound at points between the two sirens.

On the other hand, when the waves from the sirens are out of phase, meaning their peaks and troughs are misaligned, destructive interference occurs. Destructive interference leads to the cancellation of the sound waves, resulting in a fainter sound at points where the waves interfere destructively.

The loud and faint regions of sound between the two sirens are a result of the constructive and destructive interference of the sound waves emitted by the sirens, respectively.

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The amount of current that is flowing through the electric toaster would be = 0.86A

The amount of voltage outlet given = 120 V

The resistance of the heating element in the paster = 140 ohms.

Therefore the current flowing through the toaster =x

Using the formula;

V = IR

I = V/R

I = 120/140

I = 0.86A

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Answer:

The answer is "Option D"

Explanation:

Please find the graph file in the attached file.

Using formula:

\(\to v= \rho \lambda \\\\\ \to \lambda= 130 \cm \\\\ \to v= 335 \frac{cm}{s}\\\\ \to \rho= \frac{v}{\lambda} \\\\\)

      \(=\frac{335}{130} \\\\ = 2.57 \approx 2.50 \ Hz\)

The tension in the cable on the right is 550 lbs, and the tension in the cable on the left is also 550 lbs when supporting the 1100-lb weight.

For determining the tension in each cable, consider the given weight of 1100 lbs. Since the weight is supported by two cables, assume that each cable shares an equal portion of the load.

Denote the tension in the cable on the right as \(T_1\) and the tension in the cable on the left as \(T_2\). Since the weight is balanced and the cables are vertical, the total tension in both cables should be equal to the weight.

Therefore, have the equation:

\(T_1 + T_2 = 1100 lbs\)

Since both cables share the weight equally, can set up another equation:

\(T_1 = T_2\)

By substituting the value of \(T_1\) from the second equation into the first equation:

\(T_2 + T_2 = 1100 lbs\\2T_2 = 1100 lbs\\T_2 = 550 lbs\)

Since \(T_1\) is equal to \(T_2\), can conclude that the tension in each cable is 550 lbs.

In conclusion, the tension in the cable on the right is 550 lbs, and the tension in the cable on the left is also 550 lbs when supporting the 1100-lb weight.

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Answer:

a weak interaction between particles the result from mass

Hence, a 2.83 m length of the beam has an energy density of

3.86 10⁻¹⁶ J/m.

A four-level laser, the argon ion laser. The figure displays the argon ion's various energy levels. The Argon atoms are pumped to energy level E3 by a two-step collision with electrons when electric discharge flows through the tube.

The equation energy = power x time can be used to calculate the amount of energy in the beam.

The knowledge that the speed of light is equal to the sum of the light's wavelength and frequency must be used to calculate the duration.

c = λf

Rearranging the equation above yields the frequency: f = c/λ

When we change the values, we obtain:

f = (3.00 × 10⁸ m/s)/(514 × 10⁻⁹ m)

f ≈ 5.84 × 10¹⁴ Hz

The energy in the full beam is now detectable:

energy = power x duration

energy = 0.924 W x (2.83 m / (c/f))

energy ≈ 1.09 × 10⁻¹⁵ J

Lastly, we can determine the beam's energy per unit length.

energy per unit length = energy / length

= (1.09 × 10⁻¹⁵ J) / (2.83 m)

≈ 3.86 × 10⁻¹⁶ J/m

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Answer:

The answer is B) Double slit

The other end of the spring is secured to a wall. The block is pushed against the spring, which compresses the spring to a position of x=-0.04x=−0.04 m.

Compression is a process under which volume of the system is gradually reduced, pressure and temperature increases where heat transfer may or may not be possible. While in expansion process volume is gradually decrease with the decrease in pressure and temperature and heat transfer may or may not be possible.

Compression force or the compressive force occurs when the physical pressure pushes inward on a particle making it compacted. During this phenomenon, the relative position of the molecules and the atom of a particle changes rapidly.

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4.40 times 103 yd is not equivalent to 2.50 miles.

So, the correct answer is D.

To determine which of the given options is not equivalent to 2.50 miles, we need to convert 2.50 miles to the respective units given in the options.

2.50 miles is equivalent to 4.02 times 103 km, which rules out option (c).

Now, we need to convert 2.50 miles to ft and in to compare with options (a), (b), and (e). 2.50 miles = 1.32 times 104 ft, which matches option (a), so it is equivalent to 2.50 miles.

Finally,

2.50 miles = 1.32 times 104 ft = 1.58 times 105 in, which matches option (e).

Therefore, the answer is option (D), 4.40 times 103 yd, as it is not equivalent to 2.50 miles.

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Answer:

Because of the heat that contains of the fire anf it make it boil because of the atmosphere that has form

Answer:

C. Thermal energy from the fire moves to the water in the form of heat.

Explanation:

In this scenario, the hydraulic lift is used to lift an automobile weighing 1000 kg. The force required to lift the car is 196 N. To determine the area of the input piston, we can use the equation A = F/P, where A is the area, F is the force, and P is the pressure.

Given:

Weight of the car = 1000 kg

Force required to lift the car = 196 N

We can calculate the pressure P using the weight of the car:

P = Weight of the car / Area

P = 196 N / Area

To find the area of the input piston, rearrange the equation:

Area = 196 N / P

Now we need to calculate the input force required to lift the heavier truck. Let's assume the input and output pistons have the same diameter, so the area of the output piston is equal to the area of the input piston.

Given:

Weight of the truck = 1500 kg

Area of the output piston = Area of the input piston

To find the input force needed to lift the truck, we can use the equation F = P × A:

Input force = P × Area of the input piston

Substituting the values:

Input force = P × Area = (196 N / Area) × Area = 196 N

Therefore, an input force of 294 N is needed to lift the heavier truck.

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The wavelength of a photon having a frequency of 49.3 THz is 6.09 x 10⁻³ nm.

The speed of light, c = 3.00 x 10⁸ m/s. The frequency of the photon, f = 49.3 THz = 49.3 x 10¹² Hz. We can use the formula c = λf, where λ is the wavelength of the photon, to find the value of λ. Rearranging the formula to solve for λ, we get λ = c/f. Substituting the values of c and f, we get λ = (3.00 x 10⁸ m/s)/(49.3 x 10¹² Hz) = 6.09 x 10⁻³ nm. Therefore, the wavelength of the photon is 6.09 x 10⁻³ nm.

light behaves both as a wave and as a particle called a photon. The frequency of a photon determines its energy and is directly proportional to it, while its wavelength is inversely proportional to it. This relationship is described by the equation E = hf, where E is the energy of the photon, h is Planck's constant (6.63 x 10⁻³⁴ J .s), and f is the frequency of the photon. The energy of a photon is also related to its

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Answer:

The answer is B.

Explanation:

It is clear that the substance will be in liquid state above its melting point and below its boiling point.

A) This is incorrect. The substance is above the melting point but it is also above the boiling point (0 is greater than -183)

B) This is your correct answer. The substance is above the melting point and also below the boiling point.

C) This is incorrect. The substance is below both the melting point and the boiling point.

D) This is incorrect. The substance is drastically below the melting and boiling point.

Therefore , the only correct answer for this question would be B.

Raul pushes a stalled car with a force of 204 N. The average power required to move the car is 157 Watt.

The average power is given by:

P = ΔF . s / Δt

Where:

P = power

ΔF = force changes over a time period Δt

s = distance

Parameters given in the problem:

ΔF = 204 - 44 = 160 N

s = 16.3 m

Δt = 16 s

Plug these parameters into the formula,

P = ΔF . s / Δt

P = 160 x 16 / 16.3

P = 157 Watt

Hence, the required power is 157 Watt.

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Answer:

f = 99.96 N

Explanation:

Weight of Mr. Tracy, W = 85 kg

The coefficient of sliding friction between his socks and the floor is 0.12.

We need to find the force of friction that opposes Mr. Tracy's motion down the hall.

The force of friction is given by :

\(f=\mu mg\\\\f=0.12\times 85\times 9.8\\\\f=99.96\ N\)

So, the required force of friction is 99.96 N.

The electrostatic force each charge exerts on the other is  2.81N  .\(q_{1} =\) \(3\) × \(10^{-6} C\)\(\\q_2}\)  \(= - 1.5\) × \(10^{-6} C\)   They are separated by a distance \(r = 0.12m\)

Electrostatic force is \(F =\) \(\frac{kq_{1} q_{2} }{r^{2} }\)

\(F = 2.81N\)

The term "scalar" refers to a category of quantities that may be fully defined by a single magnitude. Quantities called vectors can be fully represented by their direction as well as their magnitude.

How do you define a vector's magnitude?

A vector's length is considered to be its magnitude. The letter "a" stands for the dynamic array magnitude. For further information about a vector's magnitude, go to its introduction. This article deduces formulas for vectors magnitude in considerations of their coordinates in three and two dimensions, respectively.

Magnitude is simply "distance or amount," according to the definition given in physics. It illustrates the either the absolute or relative size or velocity direction for an item.

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Answer:

Educational institutions can influence what psychological perspectives are taught, studied, and researched. Take, for example, behaviorism. Before the cognitive perspective re-emerged, behaviorism was the dominant perspective being taught in most universities. Personal ideology can also affect which perspective a psychologist supports, the course of research a psychologist undertakes, and also a psychologist's perception and interpretation of research findings. For example, during the dominance of behaviorism, psychologists were discouraged from studying cognitive processes. As a result, much of the research conducted had a behaviorist slant to it.

Explanation:

The amount of energy transferred to the engine is 5.5 kJ.

The amount of energy transferred to the engine is calculated by applying the formula for change in kinetic energy as follows;

E = ΔK.E

E = ¹/₂ x m x ( v - u )

where;

The amount of energy transferred to the engine is calculated as;

E = ¹/₂ x 1100 kg x ( 10 m/s - 0 m/s )

E = 5,500 J

E = 5.5 kJ

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The statement that is not true about changes in precipitation predicted by GCMs is option (a) The largest increases in average precipitation are found in the subtropical latitudes.

General Circulation Models (GCMs) predict that the largest increases in average precipitation will occur in higher latitudes, rather than subtropical latitudes. The other statements are accurate: heavy precipitation events are likely to become more frequent in many regions (b), global average precipitation is expected to increase overall (c), and precipitation changes tend to be more uncertain than temperature climate changes (d).

Among the given options, the statement about the largest increases in average precipitation being found in subtropical latitudes is not true according to GCMs predictions.

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Answer:

(Hope this helps can I pls have brainlist (crown)☺️)

Explanation:

But how did the Egyptians overcome the extreme friction of dragging such massive things through the sandy desert, some of which weighed more than 9,000 pounds? Researchers at the University of Amsterdam have come up with a very simple solution to the friction problem: they utilised water.

The pyramids were not built by slaves, contrary to common perception. Archaeologists discovered the ruins of a purpose-built town for the hundreds of labourers who constructed the renowned Giza pyramids about 4,500 years ago.

The Egyptians had to overcome the force of friction while dragging the big blocks of stone and the force of gravity while uplifting the large stone structure to a greater height when building the pyramids.

Friction is a type of force that resists or prevents the relative motion of two physical objects when their surfaces come in contact.

The friction force prevents any two surfaces of objects from easily sliding over each other or slipping across one another. It depends upon the force applied to the object.

Thus, while constructing the pyramids, the Egyptians had to fight against the forces of gravity and friction as they lifted the massive stone edifice to a greater height.

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1.7 m/s is the horizontal velocity that is required to clear the rocks.

As the jumper runs off a 15 m high cliff.

And according to the question,  starts with 0 velocities in the start direction thus he covers 15 m.

Given,

x = 15 m

a = g = 9.8 m, which is the acceleration due to gravity.

iv is the initial velocity which is 0, vo = 0

vf is the final velocity,

Using 2nd equations of motion,

x = iv × t + (1 ÷ 2) a × t²

15 = 0 + ((1 ÷ 2) × ( 9.8) × t²)

t = 1.75

Thus, the time is 1.75 seconds.

Using the same equation, horizontal velocity will be:

x = iv × t + (1 ÷ 2) a × t²

3 = vf × (1.75) + 1 ÷ 2 × (0) × (1.75)

vf = 1.7

Therefore, The horizontal velocity required to cover the rocks is 1.7 m/s.

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Answer:

Explanation:

The force of static friction acting on the box is the frictional force;

Frictional force Ff = Wsin theta (force acting along the ramp)

W is the gravitational force known as the weight

Ff = 112.1sin42°

Ff = 112.1(0.6691)

Ff = 75.00N

Hence he force of static friction acting on the box  if box has a gravitational force of 112.1 N id 75.00N

Answer:

75N i did test

Explanation:

Answer:

21.9m/s²

Explanation:

Given parameters:

Mass of the physics student  = 73kg

Net force  = 1600N

Unknown:

The acceleration at this point  = ?

Solution:

To solve this problem, we apply a knowledge of Newton's second law of motion which is mathematically expressed as;

        F  = m a

F is the friend

m is the mass

a is the acceleration

          1600  = 73 x a

              a  = 21.9m/s²

Answer:

Hey buddy, here is your answer.Hope it helps you.

Explanation:

A catapult is a launching device that allows us to experimentally observe projectile motion. Once the ball is launched, the only forces acting are gravity and air resistance.