The idea that objects (in the absence of an outside force) tend to continue doing what they are already doing is called the law of

Answer: the answer is a

Explanation just did the test

\(ma=F-fmg\\a=\frac{F-fmg}{m}=\frac{1500-0.25*500*10}{500} =\frac{1}{2}[\frac{m}{s^2}]\)

Since an ammeter is meant to measure current and is a low resistance device, it is always connected in series with the circuit element through which current is to be measured.

Current of a system is defined as the rate at which the electrons flow from a given point in the absolute electrical circuit.

a. Since, Current in two or more components connected in series is always the same. So circuit (a) will be used.

b. As per manufacturer's claim, resistance of bulb r = V /I.

= 12 /6 = 2 Ω.

Total resistance in circuit a,  R = 2 +0.1 = 2.1 A

Ammeter reading I' = V /R

= 12 /2.1 = 5.71 A

Which is close enough to claimed value of 6 A.

c. Now the bulb and ammeter are connected in parallel, so the voltage across both will be the same.

Current through ammeter I' = V /Ra = 12 /0.1 = 120 A

Which is 20 times greater than claimed value.

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The question is incomplete, but most probably the complete question is,

The manufacturer of a 12V car headlight specifies it will draw a current of 6A. You would like to check this claim with an ammeter designed to measure currents up to 10Aand having a resistance of 0.1 Ohms.

a)Which of the two figures represents a circuit where the ammeter correctly measures the current in the headlight?

b) How much current (in A) would flow in the ammeter for Circuit a?

c) How much current (in A) flows through the ammeter for Circuit b?

The thermal energy generated due to friction in the process of a 16.0 kg child descending a slide 2.20 m high and reaching the bottom with a speed of 1.25 m/s can be calculated using the formula

E = mgh - (1/2) mv2.

Here, E is the thermal energy generated, m is the mass of the child (16.0 kg), g is the acceleration due to gravity (9.8 m/s2), h is the height of the slide (2.20 m) and v is the speed of the child at the bottom of the slide (1.25 m/s).

Therefore, the thermal energy generated due to friction is

E = 16.0 kg * 9.8 m/s2 * 2.20 m - (1/2) 16.0 kg * 1.25 m/s2 = 15.2 J.

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V=88 km/h d=22km t=? if d/t=V t=d/V t=22km/88km/h

t=0,25h

t=1500min

i hope this helps

The calculate the total distance traveled by a particle on [0, Ï], we need to find the absolute value of the area under the velocity curve. This is because distance is the magnitude of displacement, which can be negative or positive depending on the direction of motion, but the area under the curve represents the total magnitude of the motion.

The start by finding the antiderivative of the velocity function v(t) = -sin (t - Ï/4) ∫v(t) dt = ∫-sin (t - Ï/4) dt = cos (t - Ï/4) + C
Next, we the antiderivative at the bounds of integration cos(Ï) - cos (0 - Ï/4) = cos(Ï) - cos(Ï/4) Finally, we take the absolute value of the difference between the two evaluated antiderivatives to get the total distance traveled:
|cos(Ï) - cos(Ï/4) | This is the answer to the question, expressed in 200 words. The total distance traveled by a particle on [0, Ï], given that the velocity is v(t) = -sin (t - Ï/4), is |cos(Ï) - cos(Ï/4) |. We find the total distance traveled by taking the absolute value of the difference between the antiderivative of the velocity function evaluated at the bounds of integration. This approach works because distance is the magnitude of displacement, which can be negative or positive, but the area under the curve represents the total magnitude of the motion.

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Answer: 0.25 m/s

Explanation:  Speed = wavelengt · frequency  

v = λf   and frequency is 1/period  f = 1/T

Then v = λ/T = 5 m / 20 s = 0.25 m/s

Answer:

29.55 kg

Explanation:

force gravity =  G m1 m2 / (r^2)    now change the mass 1 and the r

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

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

the weight will be 2/4   or  1/2 the original

Answer:

720N

Explanation:

force=mass × acceleration

=ma

= 1200×0.6

=720

the s.i unit of force is Newtown therefore the answer is 720N

It must be either speeding up, or slowing down, or turning. There are no other possibilities.

The light's intensity from an isotropic point source decreases inversely with the square of the distance from the source. intensity of light plays a significant role in determining its effect on the surrounding environment.

An isotropic point source of light emits light uniformly in all directions. As the light spreads out from the source, it becomes more spread over a larger surface area. Therefore, as the distance from the source increases, the same amount of light is spread over a larger area, resulting in a decrease in intensity.

Mathematically, the relationship between intensity (I) and distance (r) from the source can be expressed as:

I ∝ 1/r^2

The distance doubles, the intensity decreases by a factor of four. Similarly, if the distance triples, the intensity decreases by a factor of nine, and so on.

For an isotropic point source of light, the intensity of the light decreases inversely with the square of the distance from the source. Understanding this relationship is crucial in various fields, such as optics and lighting design, where the intensity of light plays a significant role in determining its effect on the surrounding environment.

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By 0.27m, the kitchen is farther than the hallway. Because Kim's home's hallway is 4.63 metres long. The distance of her kitchen is 0.0049 kilometres. The distance is same in any velocity.

Distance is measured numerically or sporadically qualitatively. far apart certain things or points are. Distance in physics or common language can refer to a physical length or an assumption based on other factors. Purposes In disciplines that study human behaviour, such the social sciences, qualitative measurements are frequently used. The rate of change in an object's position relative to a frame of reference is called velocity, and it depends on time.

4.9m is equal to 0.0049 km;

the difference is equal to 4.9 - 4.63;

and the difference is equal to 0.27.

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Energy delivered to the Bike = 0.125 kWh

Energy stored in the batteries = 27000 J

Energy left for lighting bulbs = 91 Wh

Number of light bulbs is two lightbulbs for 4 hours each.

a. Energy delivered to the Bike is calculated as follows:

Energy = power * time

Energy delivered to the Bike = 125 W * 1 hour

Energy delivered to the Bike = 125 Wh

Energy delivered to the Bike = 0.125 kWh

b. Energy delivered in Joules = 0.125 kWh = 0.125 * 1000 * 3600

Energy delivered in Joules = 450,000 J

The energy stored in the batteries = 60 /100 * 450,000 J

The energy stored in the batteries = 27000 J

Fully charging a tablet takes 24 Wh of energy

Fully charging a cell phone takes 10 Wh of energy,

Using small LED bulbs consumes 8 W of power.

Energy consumed by LED bulbs for 4 hours = 8 * 4 = 32 Wh

Energy left for lighting bulbs = 125 - (24 + 10) = 91 Wh

Number of light bulbs = 91 Wh/32 = 2.84

Therefore, it can light two lightbulbs for 4 hours each.

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Answer:

D, None of these.

Explanation:

They have science in them but its not a product.

The work-kinetic energy theorem states that the work done by the net force acting on an object is equal to the change in its kinetic energy. Answer is 310 M.

W = 1/2mvf2 W = Fd = mgdmgdsin = 1/2 mvf2.

Is this logical in light of the circumstances? Although that makes logical to me, one of my pupils is certain it is wrong. He claims that the cos should be used instead of the sin. The answer and the key are in agreement. I want to be able to lay out the facts for him.

Hence the minimum distance along the slope the skier would have to travel in order to reach this speed  is 310 M.

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Gwen's position is a function of his velocity and time

Gwen's position at 45 seconds is 63.9 feet

The function is given as:

v(t) = 250sin(t^2/120)/(t + 6)

When t = 45, we  have:

v(45) = 250sin(45^2/120)/(45 + 6)

Evaluate the sum, the exponent and the quotient

v(45) = 250sin(16.875)/(51)

Evaluate the sine ratio

v(45) = 250 * 0.2903/51

Evaluate the product and quotient

v(45) = 1.42

The position is then calculated as:

S(45) = v(45) * 45

This gives

S(45) = 1.42 * 45

Evaluate the product

S(45) = 63.9

Hence, Gwen's position at 45 seconds is 63.9 feet

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The displacement is the shortest between any two given points. The displacement of Gwen at the time period of 45 seconds is 63.9 feet.

The displacement is the shortest between any two given points. It is the product of velocity and time.

Given that the function of the velocity is \(v(t)=\dfrac{250\sin\left(\frac{t^{2}}{120}\right)}{\left(t+6\right)}\). Therefore, substitute the value of t as 45, to know the velocity of Gwen at 45 seconds,

\(v(t)=\dfrac{250\sin\left(\frac{t^{2}}{120}\right)}{\left(t+6\right)}\)

\(v(45)=\dfrac{250\sin\left(\frac{45^{2}}{120}\right)}{\left(45+6\right)}\\\\v(45) = 1.42\)

Since displacement is the product of velocity and time, therefore, the displacement is equal to,

\(s = v \times t\\\\s = 1.42 \times 45\\\\s = 63.9\rm \ feet\)

Hence, the displacement of Gwen at the time period of 45 seconds is 63.9 feet.

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Answer:

(1) body composition, (2) flexibility, (3) muscular strength, (4) muscular endurance, and (5) cardiorespiratory endurance. 

Given data

*The weight of the box is W = 500 N

*The distance of the plank from the fulcrum is d = 5 m

*The given force at a distance from the fulcrum is D = 10 m

The minimum force is required to lift the box is given by the net torque as

Substitute the known values in the above expression as

Hence, the minimum force is required to lift the box is F = 250 N

6 feet deep is a fathom .

What is fathom ?

A fathom is a unit of length that is used primarily to measure the depth of water in nautical and maritime applications. It is equivalent to 6 feet (1.83 meters) and is used to describe the depth of water in terms of the distance from the surface of the water to the ocean floor.

The word "fathom" comes from the Old English word "fæðm," which means "the outstretched arms." The term was used to describe the length of a human outstretched arms, which was approximately 6 feet.

In nautical and maritime applications, fathoms are used to measure the depth of water in harbors, shipping lanes, and other areas where ships and boats operate. This information is important for navigation, as it helps sailors and mariners to avoid shallow waters and potential hazards.

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The pressure tank is an essential component of many industrial processes, allowing for the safe and reliable storage of fluids and gases under high pressure.

A pressure tank is a container designed to store fluids and gases under high pressure. This type of container has a convex head, which means that the head of the container curves outward, allowing for more storage capacity. The container can store around 2,000 pounds (907 kg) of fluid or gas under high pressure, and is commonly used to store chlorine, which is a corrosive gas that can cause damage to other materials. The pressure tank is an example of a storage container that is designed to hold substances under high pressure.

These types of containers are typically used in industrial applications, such as chemical manufacturing, oil and gas production, and other high-pressure applications. The pressure tank is a reliable and durable container that is designed to withstand extreme conditions and protect the stored materials from contamination or damage. Pressure tanks are commonly used in the chemical industry to store and transport hazardous chemicals. They are also used in the oil and gas industry to store and transport natural gas and other gases. These containers are carefully designed to meet strict safety standards and regulations, ensuring that they are safe for use in various industrial applications.

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Answer:

There are three main parts to the Sun's interior: the core, the radiative zone, and the convective zone. The core is at the center. It the hottest region, where the nuclear fusion reactions that power the Sun occur. Moving outward, next comes the radiative (or radiation) zone.

Answer:

B.core, radiative zone, convective zone, and photosphere

Explanation:

Edge 2021

The speed of molecules in a gas varies inversely with molar mass of the gas and is inversely related to temperature.

Gases have fast-moving particles that regularly collide with one another and the container's side as they move quickly in all directions. The particles gain kinetic energy and accelerate with an increase in temperature. A gas molecule therefore moves at an average speed of 500 m/sec. The speed of sound in a gas is approximately 340 m/s.

Therefore, there is a relationship between the average kinetic energy of the gas molecules and its temperature. The average kinetic energy of gas particles remains constant when a gas is compressed without affecting its temperature. Although the container is smaller, the particles still move at the same speed. Particles move quicker from one end of the container to the other as a result.

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Answer:

A

Explanation:

Newton third law of motion state that action and reaction are equal and opposite

Answer:

Always true

Explanation:

I got it right on the test.

Answer:

4

Explanation:

The intensity level of a sound with an intensity of 5.0 × 10-10 W/m2 is 27 dB.

The intensity level of a sound can be calculated using the following formula:
Intensity level (dB) = 10 log (I/I0), where I is the intensity of the sound and I0 is the reference intensity, which is typically 10-12 W/m2.
Using this formula, we can calculate the intensity level of a sound with an intensity of 5.0 × 10-10 W/m2 as follows:
Intensity level (dB) = 10 log (5.0 × 10-10 / 10-12)
Intensity level (dB) = 10 log (5.0 × 102)
Intensity level (dB) = 10 × 2.7
Intensity level (dB) = 27 dB
Therefore, the intensity level of a sound with an intensity of 5.0 × 10-10 W/m2 is 27 dB. It's important to note that the intensity level is a measure of how loud a sound is perceived by the human ear, and is typically measured on a logarithmic scale. So, a sound with an intensity level of 27 dB is considered relatively quiet, while a sound with an intensity level of 120 dB (such as a jet engine or a rock concert) is considered very loud and can cause hearing damage if exposure is prolonged.

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The integral of 1/(1 + x²) is (1/2)ln|1 + x²| + C where C is the constant of integration.

Integration is a mathematical process of finding the antiderivative of a function. To integrate the given expression 1/(1 + x²), we will use the substitution method.

Let u = 1 + x², du/dx = 2x dx, then dx = du/2x and the integral becomes:

∫1/(1 + x²) dx = ∫1/u * (1/2x) du= (1/2)∫1/u du

The antiderivative of 1/u is ln|u| + C, where C is the constant of integration.

Therefore, the final solution of the integral is (1/2)ln|1 + x²| + C.

Let us work through the steps:

Step 1:Let u = 1 + x² and then differentiate both sides with respect to x to obtain du/dx. du/dx = 2x

Substitute 2x dx = du into the integral ∫1/(1 + x²) dx to get the integral in terms of u:∫1/u * (1/2x) du = (1/2) ∫1/u du

Step 2:Calculate the antiderivative of 1/u, which is ln|u|. Thus, the final solution is (1/2)ln|1 + x²| + C, where C is the constant of integration. The constant C will vary depending on the initial conditions of the problem.

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Answer:

4500

Explanation:

Formula: power x time

300 x 15 = 4500