If a child pulls a sled through the snow with a force of 50 N exerted at an angle of 38° above
the horizontal, find the horizontal and vertical components of the force.

One statement that is not true is that UV radiation is a type of electromagnetic radiation. It is also a type of ionizing radiation. UV radiation is actually a form of non-ionizing radiation.

UV radiation, or ultraviolet radiation, is a type of electromagnetic radiation that falls between visible light and X-rays on the electromagnetic spectrum. It is often categorized into three types: UVA, UVB, and UVC. Unlike ionizing radiation, such as X-rays and gamma rays, which have enough energy to remove tightly bound electrons from atoms or molecules, UV radiation lacks the necessary energy to ionize atoms or molecules. Instead, it primarily interacts with the outermost electrons of atoms or molecules, leading to chemical reactions and causing biological effects.

UV radiation is commonly associated with sunlight and has various effects on living organisms and materials. It can cause sunburn, premature aging of the skin, and an increased risk of skin cancer. Exposure to excessive UV radiation can also damage the eyes and impair the immune system. It is important to protect oneself from excessive UV exposure by wearing sunscreen, protective clothing, and sunglasses.

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The given statement "swinging a tennis racket against a ball is an example of a third-class lever" is TRUE.

A third-class lever is a class of lever where the input force is located between the fulcrum and the load. The fulcrum is the pivot point of the lever. The load is the weight or resistance that is being moved, lifted, or carried.The following are some examples of third-class levers: Sweeping with a broom. Tennis racket. Field hockey stick. Butter knife, etc. Thus, we can say that swinging a tennis racket against a ball is an example of a third-class lever.

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The two times when the radius of curvature has a value of 1800 ft are t = 0.452 sec and t = 2.67 sec.

The radius of curvature of the trajectory of the golf ball is given by the equation R = 1800 ft. To find the two times when the radius of curvature has this value, we need to solve for t in the equation.

First, we need to find the equation of the trajectory of the golf ball. The equation of the trajectory is given by \(y = f(x) = ax^2 + bx + c\), where a, b, and c are constants.

We are given that the golf ball is launched at time t = 0, so we can substitute t = 0 into the equation to find the initial position of the golf ball.

\(y = f(0) = a(0)^2 + b(0) + c = c\)

Since the radius of curvature is given by R = 1800 ft, we can substitute this value into the equation and solve for t.

\(1800 = (1 + (2at + b)^2)^(3/2) / (2a)\)

Solving for t gives us the two times when the radius of curvature has a value of 1800 ft.

\(t = (-b ± √(1800(2a) - b^2)) / (2a)\)

Plugging in the values for a, b, and c gives us the two times when the radius of curvature has a value of 1800 ft.

\(t = (-b ± √(1800(2a) - b^2)) / (2a) = (0.452, 2.67)\)

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Answer:

Parallel Circuit

Explanation:

Check the image below

in series circuits currents can only flow in one direction

In parallel circuits currents can flow  through more than one path

Because the circuit shown has two pathways it is considered a parallel circuit

Answer:

Parallel Circuit

Explanation:

Hope this helps

The type of torque wrench designed for tightening clamping bands on underground pipe is the …No-Hub..

The type of torque wrench designed for tightening clamping bands on underground pipe is the no-hub type

A no-hub type torque wrench is a tool that is generally used for plumbing and pipe installation work.

There are four basic types of torque wrenches: beam or deflection, dial indicator, clicker and digital. Dial type torque wrenches are the most accurate torque wrenches available.

The best torques wrench would be the one that meets the needs in terms of capability.

Plumbing is the set of activities in which modifications, installations, replacements, maintenance or repairs of pipes and accessories related to water drainage are carried out.

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Over the course of 30 meters, a car accelerates steadily from zero to 25 m/s. the acceleration is 10.41 m/s^2, in this case.

A is the ideal answer. True Continually traveling in a straight line, an automobile is going at a speed of 30 m/s. The automobile is moving with zero acceleration.

The formula a = v/t denotes acceleration (a), which is the product of the change in velocity (v) and the change in time (t). Using meters per second squared (m/s2), you can gauge how quickly velocity varies.

v = 25 m/s, u = 0 m/s, s = 30 meter

So,

v^2 = u^2 + 2as

(25)^2 = (0)^2 + 2a(30)

a = 625/60

a = 10.41 m/s^2

Thus, the acceleration is 10.41 m/s^2.

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Answer:The molecule is represented by the conventional Lewis structure, even though the shared electron pair is associated to a larger extent with chlorine than with hydrogen. The unequal sharing of the bonding pair results in a partial negative charge on the chlorine atom and a partial positive charge on the hydrogen atom.

Explanation:

Answer:

I did this essay before, its not hard. Just read through it carefully and you'll figure it out. or just ask you mom, dad, guardian, or teacher for help

The human ear can hear the frequency range of 20 Hz to 20 kHz and dogs can hear up to the range of 40Hz up to 50,000Hz or even 60,000Hz. Compared to humans, dogs have a significantly wider range of hearing.

Sound is a mechanical disturbance that travels through an elastic medium and disrupts an equilibrium condition. It is also feasible to define sound solely subjectively, as that which is perceived by the ear.

Although this definition lacks clarity and is overly pedantic because it is necessary to discuss noises that cannot be heard by the human ear, such as those made by dog whistles or sonar devices.

Given:

Dogs can hear sounds that we can't,

While small toddlers can hear noises exceeding 20,000 Hertz (Hz), the average adult cannot. (The frequency of a sound is measured in Hertz, and the greater the frequency, the higher pitched the sound.) Dogs, on the other hand, are capable of hearing frequencies between 40Hz up to 50,000Hz or even 60,000Hz.

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The time spent in the air by the ball at the given momentum is 6.43 s.

The given parameters;

The impulse experienced by the ball is calculated as follows;

\(Ft = \Delta P\)

where;

\(Ft\) is impulse

\(\Delta P\) is change in momentum

The time of motion of the ball is calculated as follows;

\(t = \frac{\Delta P}{F} \\\\t = \frac{0.9 - 0}{0.14} \\\\t = 6.43 \ s\)

Thus, the time spent in the air by the ball at the given momentum is 6.43 s.

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Answer:

2 days 2 hours or 50 hours

Explanation:

800/16=50

Answer:

76 seconds

Explanation:

Using the formula t=vf-vo/a, where t=time, vf= final velocity, v0= initial velocity, and a= acceleration, we can solve for your problem.

Plug in known variables...

t=200-10/a

we can solve for a by using the formula F=ma where f=force, m= mass, and a=acceleration and rearranging it to solve for a.

a=F/m

Plug in known variables...

a=250N/100kg

a=2.5m/s^2

Plug in our newly found acceleration of 2.5 m/s^2 into our first equation and solve....

t=190/2.5

t=76 seconds

Answer:

-They will be available for many years.

Explanation:

The advantage of using renewable resources is that they will be available for many years.

Renewable resources have very fast turn over time for replenishing, therefore, they are available over an extended period time.

They are not used by consumption and so they will continually be available. This is different from the non-renewable resources which are depleted as they are being used up.

Examples of renewable resources are wind, water and air

Answer: Option A is correct.

Explanation: To have acceleration, you need to have a change in speed or direction, or both.  The ball moving around the circular hoop is not changing speed, but it is changing direction.  So, it is accelerating.

The path calculation considering wind vectors involves drawing the course in blue, adding the wind vector in orange to the tail of the blue vector, and then drawing the resultant vector in green.

How can we calculate the resultant vector using vector addition?

To calculate the resultant vector using vector addition, we need to add the components of the blue vector and the orange wind vector separately. The components can be determined by breaking down each vector into its horizontal and vertical parts. Once we have the horizontal and vertical components, we can add them separately to find the resultant horizontal and vertical components. Finally, we can combine the resultant horizontal and vertical components to form the resultant vector. The resultant vector will represent the direction and magnitude of the vessel's path considering the wind effect.

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In the vector addition, measure the resultant vector from the origin of the first vector to the end of the last vector. In the Ferris wheel problem, formulate a sinusoidal function accounting for radius, center height, and speed of rotation.

The question involves two main concepts, vector addition and creation of sinusoidal functions. When dealing with vector addition, the order in which we add the vectors is not important, but it is critical to draw the vectors to scale. For instance, if you're given vector -3B, you can reliably draw the resultant vector S by starting from the origin of -3B and tracing to the end point of the last vector in the sequence. The direction angle and magnitude of S can then be measured with a protractor and a ruler respectively.

For the Ferris wheel problem, you are tasked with generating a sinusoidal function representing the height as a function of time. The Ferris wheel has a diameter of 30 meters, it's center stands at 19 meters off the ground, and it completes 2 revolutions per minute. The radius of this wheel is half its diameter, so it is 15 meters. Given this information, a possible sinusoidal function is h(t) = 19 + 15sin((4π/60)t), where t represents time in seconds. Notice that the '15' represents the amplitude or radius of the Ferris wheel, the '19' shifts the sinusoidal function along the y-axis to account for the height of the Ferris wheel's center from the ground, and the term '(4π/60)t' defines the speed of the Ferris wheel's rotation, translating the speed given in revolutions per minute into radians per second.

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The main advantage of using models in science is the chance to predict a given outcome and make new predictions.

The expression 'scientific models' makes reference to all advancements associated with the use of scientific claims, especially scientific theories that are well sustained by empirical evidence and the chance to prove these claims before their usage.

The scientific advantages are mainly associated with the possibility to predict the result of phenomena from the real world, which also allows for making new predictions.

In conclusion, the main advantage of using models in science is the chance to predict a given outcome and make new predictions.

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You need the atomic mass of calcium, oxygen and carbo, the balanced chemical equation and the molar ratio between Calcium carbonate and calcium oxide.

1. If you know the atomic mass of the elements, you can calculate the molar mass of Calcium Carbonate (CaCO3) and the mass of Calcium Oxide (CaO).

2. The balanced equation is CaCO3 -> CaO + CO2

3. The molar ratio between CaCO3 and CaO is 1:1, which means that the descomposing of one mole of calcium carbonate produce one mole of calcium oxide.

4- The last thing you should do is to conver the 4.7 kg of CaCO3 to moles and with the molar ratio calculate the mass of CaO

Explanation:

Any confusions you may ask!

The magnitude, direction, components, origin, and terminal points are the key parts of a vector.

A vector is known to have  several components that define its properties and characteristics.

The magnitude or length of a vector represents its size or magnitude and  is a scalar quantity that specifies the distance or amount of the vector.

The direction of a vector represents the orientation or angle at which the vector is pointing and indicates the line along which the vector is directed in most cases can be described using angles, unit vectors, or in relation to a coordinate system.

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Formula: v = s+f/2

v = average velocity

s = starting velocity

f = final velocity

Use what we are given and solve.

v = 0+(-7.68)/2

v = -7.68/2

v = -3.84

Best of Luck!

Answer:

Hey there!

Kelvin is correct. Farenheit and Celsius are scales derived from the Kelvin scale. For example, K=C+273.15 is the conversion between Kelvin and Celsius.

Let me know if this helps :)

Answer:

I think.d

(•‿•) bakalang tama

Answer:

d

Explanation:

because atoms fewer electrons to move between atoms than silicon atoms do

Answer:

I HAD THE SAME QUESTION AND SEARCHED IT UP AND GOT THE ANSWERS.

Explanation:

When a sphere with a diameter of 4.00 cm is charged to 50V, the charge on the sphere is  1.11×10⁻¹⁰ Coulomb.

The amount of separated electric charge that may be stored on an electric conductor, or set of conductors, in relation to a unit change in electrical potential is known as capacitance.

The term "capacitance" also suggests the storage of electrical energy. When two initially uncharged conductors receive electric charge from one another, they both become equally charged—one positively and the other negatively.

Diameter of the sphere: d = 4.00 cm = 0.04 m.

Potential difference applied across it: V = 50 volt.

The capacitance of the sphere: C = 4πε₀ (d/2)

= (0.04/2) (1/9×10⁹)

= 2.2 ×10⁻¹² F.

Hence, the charge on the sphere is: Q = CV

=  2.22 ×10⁻¹² F × 50 V

= 1.11×10⁻¹⁰ Coulomb.

So, the charge on the sphere is  1.11×10⁻¹⁰ Coulomb.

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Answer: hello your question is incomplete below is the missing part

What is Azimuth ?

answer : angle of a sound source on the horizontal plane relative to a point in the center of the head between the ears ( D )

Explanation:

Azimuth is the described as angle of a sound source ( between the North ) and it is measured in a clockwise direction in relation to the observer ( Human ear )

Hence the option that fits in is : angle of a sound source on the horizontal plane relative to a point in the center of the head between the ears

Answer: The added heat or thermal energy leads to the molecular bonds breaking which leads to a change of state of solid to a liquid, then eventually gas. Solids melt when they absorb enough thermal energy.

The normal force acting on the mountain goat is 650 N. It supports the weight of the goat and keeps it in equilibrium on the slope.

The normal force is the force exerted by a surface to support the weight of an object resting on it. It acts perpendicular to the surface. In this case, the mountain goat is standing on a slope.

When an object is on an inclined surface, the normal force can be split into two components: one perpendicular to the slope (normal to the surface) and one parallel to the slope (tangential to the surface).

The component parallel to the slope is responsible for counteracting the gravitational force pulling the object down the slope.

In this scenario, the mountain goat is standing on the slope, and we can assume it is in equilibrium, meaning it is not sliding down the slope. Therefore, the parallel component of the normal force is equal in magnitude and opposite in direction to the gravitational force acting down the slope.

The weight of the mountain goat is given as 650 N. This is the magnitude of the gravitational force acting on the goat.

The normal force acting on the goat is equal in magnitude but opposite in direction to the gravitational force. So the normal force is also 650 N.

The normal force acting on the mountain goat is 650 N. It supports the weight of the goat and keeps it in equilibrium on the slope.

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When a ferromagnetic material is placed in an electromagnetic coil and a magnetic field is applied, the magnetic induction (B) is increased.

Therefore, the correct answer is:

(a) There is a large increase in the magnetic induction (B)

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Answer:

it is used because

They are also less likely to jam due to rust in the screw thread.

Hydraulic jacks are often used to lift elevators in low and medium rise buildings.

A hydraulic jack uses a liquid that is forced into a cylinder by a pump plunger.

The radius of the curve that the plane follows in making the turn is approximately 275.87 meters.

To find the radius of the curve that the plane follows in making the turn, use the relationship between the speed, radius, and time for an object moving in a circular path.

Given:

Velocity of the airplane (v) = 115 m/s

Time taken to complete the turn (t) = 15 seconds

The formula to calculate the radius (r) of the curve is:

r = v × t / (2 × π)

Substituting the given values into the formula:

r = 115 m/s × 15 s / (2 × π)

Calculating the value:

r ≈ 115 × 15 / (2 × 3.14159)

r ≈ 115 × 15 / 6.28318

r ≈ 275.8686 meters

Therefore, the radius of the curve that the plane follows in making the turn is approximately 275.87 meters.

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