Ryan and Becca are moving a folding table out of the sunlight. A cup of lemonade, with the message 0.44 kg is on the table. Becca lifts her end of the table before Ryan does, as a result, the table makes an angle of 150.0° with the horizontal. Find the components of the cups weight that are parallel and perpendicular to the plane of the table

Answer:

Option 2.) Thermal energy is transferred by electromagnetic waves.

Explanation:

just answered it on e2020

Oxygen is more reactive than nitrogen. Because triple bond between two atoms of nitrogen and there is double bond between two atoms of oxygen.Therefore, this statement is true.

Reactivity is a substance's capacity to chemically react with other compounds. Iron, for instance, reacts vigorously with oxygen. Rust is a reddish powder that is created when it reacts with oxygen.

Because nitrogen has a higher dissociation energy than oxygen, its reactivity is lower than that of oxygen at the molecular level. Due to the triple bond that exists between the nitrogen atoms, the bond length of nitrogen is also shorter than that of oxygen.

Due to the strong triple bond between the atoms, the fact that all the valence electrons are in bonding orbitals, and the fact that more energy is required to excite them, Nitrogen is less reactive than Oxygen in the majority of gaseous processes.

Thus, Oxygen is more reactive than nitrogen.

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Answer:

c. gravitational potential energy

Explanation:

Gravitational potential energy is the form of energy possessed by an object which is located at a certain height above the ground. This energy is given by:

[tex]U=mgh[/tex]

where:

m is the mass of the object

g is the gravitational acceleration (g=9.8 m/s^2)

h is the height of the object with respect to the ground

We have to note that gravitational potential energy is always measured with respect to a reference altitude (generally, the ground), because the value of h depends on the point chosen as reference.

The force of tension acting on the elevator is calculated using Newton's second law of motion, considering the elevator's weight and its downward acceleration. After computations, the tension force is found to be approximately 15,150 N.

To determine the tension force (Ft) acting on the elevator, we can use Newton's second law of motion, which states that the force is equal to mass times acceleration (F = ma). First, we need to find the mass (m) of the elevator by using the weight (W) of the elevator and the acceleration due to gravity (g), which is approximately 9.81 m/s²:

m = W / g

Therefore, m = 14,700 N / 9.81 m/s² ≈ 1500 kg.

The net force acting on the elevator (Fnet) involves both its weight and the force of tension in the supporting cable, while considering the elevator's downward acceleration:

Fnet = Ft - W = ma

where 'a' is the acceleration of the elevator. Substituting the given values:

Fnet = Ft - 14,700 N = 1500 kg × (-0.30 m/s²)

Ft = 14,700 N + (1500 kg × 0.30 m/s²)

Calculating the terms:

Ft = 14,700 N + 450 N

Ft ≈ 15,150 N.

Therefore, to the nearest whole number, the force of tension acting on the elevator is 15,150 N.

Answer:

The process of estimating values between measured data points is called. interpolation.

Explanation:

The image produced by the lens (diverging lens) will be inverted and real.

The following are characteristics of image formed when an object is placed in front of the focal point of a converging lens.

The images produced by a diverging lens when the object is outside the focal point are;

Thus, we can conclude that based on the options given, the image produced by the lens (diverging lens) will be inverted and real.

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Answer: d. Ecologists

Ecologist are scientists who studies the relationship between living things and their surrounding environment, also the relationship between distinct species, interaction among the members of the same species. They surveys the biodiversities, to know such relationships.

Answer:

The correct statement is “A solstice because the Earth is very close to the Sun”

Explanation:

The solstice occurs when the sun is closer or further from one of the Earth's hemispheres, increasing the duration of the day in one part of the world, and decreasing its duration in the other. That is, during the solstice, the sun is closer to one of the hemispheres, causing the day to have a longer duration, while the night is longer in the other hemisphere.

In the case of the equinox, the sun is on the equator line, so the day and night in both hemispheres have the same duration. At that time the part of the Earth closest to the Sun is the equator.

The solstice is caused because the axis on which our planet rotates on itself is slightly inclined with respect to the translation plane, this is its trajectory around the Sun.

That implies that different regions of the globe receive more or less light at different times of the year.

The equinox like the solstice is presented twice a year, marking the entrance of the seasons. The sunny days are longer during the summer solstice, while the nights are longer during the winter solstice. The equinox occurs at the beginning of autumn and spring, when the sun is closer to the equator.

So the correct statement is “A solstice because the Earth is very close to the Sun”

The distance is 17 km

The displacement of the boat is about 12 km at 70° S of W

[tex]\texttt{ }[/tex]

Vector is quantity that has magnitude and direction.

One example of a vector is displacement.

Let us now tackle the problem !

[tex]\texttt{ }[/tex]

This problem is about Vector Diagram.

On his fishing trip Justin rides in a boat 12 km south.

[tex]d_1 = -12 \widehat{j}[/tex]

[tex]\texttt{ }[/tex]

The fish aren’t biting so they go 4 km west.

[tex]d_2 = -4 \widehat{i}[/tex]

[tex]\texttt{ }[/tex]

They then follow a school of fish 1 km north.

[tex]d_3 = 1 \widehat{j}[/tex]

[tex]\texttt{ }[/tex]

[tex]\texttt{Total Distance} = 12 + 4 + 1 = 17 \texttt{ km}[/tex]

[tex]\texttt{ }[/tex]

[tex]d = d_1 + d_2 + d_3[/tex]

[tex]d = -12 \widehat{j} - 4 \widehat{i} + 1 \widehat{j}[/tex]

[tex]d = -4 \widehat{i} - 11 \widehat{j}[/tex]

[tex]\texttt{Total Displacement} = \sqrt{4^2 + 11^2} = \sqrt{137} \approx 12 \texttt{ km}[/tex]

[tex]\texttt{Direction of Displacement} = \theta = \tan^{-1} \frac{11}{4} \approx 70^o \texttt{ south of west}[/tex]

[tex]\texttt{ }[/tex]

[tex]\texttt{ }[/tex]

Grade: High School

Subject: Physics

Chapter: Vectors

[tex]\texttt{ }[/tex]

Keywords: Local , Race , Driver , Road , Finish , Line , Displacement , Vector , Degree , North , West , South , Kilometres

29.3 centimeters from the given list of the measurement would have the three significant digits.

Therefore the correct answer is option A.

In positional notation, significant figures refer to the digits in a number that is trustworthy and required to denote the amount of something, also known as the significant digits, precision, or resolution.

29.3 centimeters would have the three significant figures.

290 centimeters would have the two significant figures.

0.0029  centimeters would have the two significant figures.

290.0 centimeters would have the two significant figures.

Thus, the three significant digits of 29.3 centimeters from the provided list of the measurement would be the correct answer.

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Answer:

Your answer would be D) When you push on an object, it pushes back just as strongly on you.

Explanation:

This was the only question I had gotten wrong on my test. I thought B would be it, but I can see where the mistake was. According to Britannica.com  "The third law is also known as the law of action and reaction". which would fit with D if you think about out.

Hope this helps and Good luck!

Final answer:

To find how far the camel is from oasis B after walking 24 km at 19° south of east and then 4 km due north, we use vector components and the Pythagorean theorem.

Explanation:

The problem you're working on is a classic example of vector addition and applying principles of trigonometry to solve for the resultant displacement. The camel starts at oasis A, walks 24 km at a 19° angle south of east, and then walks 4.0 km due north. We're looking to find the distance the camel is from oasis B.

First, we break down the camel's walk into components. The eastward component of the first walk is 24 km × cos(19°), and the southward component is 24 km × sin(19°). After the camel walks 4 km due north, the total southward displacement would be reduced by 4 km. Given that oasis B is due east of oasis A, the eastward component is compared to the 25 km distance between the oases.

To find out how far the camel is from oasis B, we calculate the straight-line distance using the Pythagorean theorem: √((25 km - eastward component)² + (southward component - 4 km)²). Let's calculate these components and solve for the distance.

The eastward component is 24 km × cos(19°) and the reduced southward component is 24 km × sin(19°) - 4 km. Finally, calculate the distance from oasis B using the Pythagorean theorem with the adjusted components.

Answer:

Explanation:

When an object is moving around a circular path with a uniform speed the motion os said to be uniform cicular motion. It is the example of accelerated motion as the direction of motion keeps on changing every instant.

When a body is in uniform circular motion, it experiences a force towards the centre of circular path, this force is called centripetal force.

The formula of centripetal force is given by

F = mv^2 / r

Where m is the mass of body, V be the speed of body and R be the radius of circular path

F = 11 × 3.5 × 3.5 / 0.6

F = 224.58 N

Final answer:

To calculate the emitted power per square meter for an object at 2600 K, we use the Stefan-Boltzmann law with a value of 5.67 × 10^-8 W/m^2/K^4 for the Stefan-Boltzmann constant. The result for the given object is approximately 1.53 × 10^7 W/m^2.

Explanation:

Finding the Emitted Power Per Square Meter for a Blackbody

To find the emitted power per square meter (intensity) of peak intensity for an object with a temperature of 2600 K, we will use the Stefan-Boltzmann law, which expresses the power radiated per unit area from a blackbody in terms of the Stefan-Boltzmann constant (σ) and the absolute temperature (T) to the fourth power. The Stefan-Boltzmann law can be written as:

dP/dA = σ T^4,

where σ (Stefan-Boltzmann constant) is approximately 5.67 × 10^-8 W/m^2/K^4. We can calculate the power per square meter by plugging the given temperature into this equation:

dP/dA = (5.67 × 10^-8 W/m^2/K^4) × (2600 K)^4,

After calculating, we find that the power emitted per square meter at peak intensity is:

dP/dA = about 1.53 × 10^7 W/m^2.

Therefore, an object at 2600 K emits approximately 1.53 × 10^7 watts per square meter.

The change in mechanical energy of the bullet is 3750 J. The magnitude of the average force from the wall stopping it is 1250 N.

(a) The change in mechanical energy of the bullet can be calculated by finding the initial mechanical energy and subtracting the final mechanical energy. Mechanical energy is the sum of kinetic energy and potential energy. Since the bullet comes to a stop, its final kinetic energy is zero. Therefore, the change in mechanical energy is equal to the initial kinetic energy of the bullet. The initial kinetic energy can be calculated using the formula KE = 1/2mv^2, where m is the mass of the bullet (30 g = 0.03 kg) and v is the velocity of the bullet (500 m/s). Plugging in the values:

KE = 1/2(0.03 kg)(500 m/s)^2

KE = 1/2(0.03 kg)(250000 m^2/s^2)

KE = 3750 J

Therefore, the change in mechanical energy of the bullet is 3750 J.

(b) The magnitude of the average force exerted by the wall on the bullet can be calculated using the formula for impulse. Impulse is equal to the change in momentum, and momentum is equal to the product of mass and velocity. Therefore, the equation is:

Impulse = Change in momentum = Force * Time

Since the bullet comes to a stop, its initial momentum is equal to its final momentum, which is zero. Therefore, the impulse is equal to the initial momentum. The initial momentum can be calculated using the formula momentum = mv:

Momentum = (0.03 kg)(500 m/s) = 15 kg*m/s

Now, we can calculate the average force using the equation Impulse = Force * Time:

15 kg*m/s = Force * (12 cm / 100 m)

Force = (15 kg*m/s) / (12 cm / 100 m) = 1250 N

Therefore, the magnitude of the average force from the wall stopping the bullet is 1250 N.

When the angle of the kick is changed, the range or distance the football travels will also change. To determine the new range when the angle is changed to 35.0°, calculate the horizontal component of the velocity and find the time it takes for the football to reach the ground. Multiply the time by the horizontal velocity to get the new range.

When the football is kicked at a different angle, the range or distance it travels will change. In this case, the original angle of 25.0° resulted in a range of 15.1 m. If the angle is changed to 35.0°, the range will be different. To find the new range, you can use the same initial velocity of 13.9 m/s and apply the new angle of 35.0°. Calculate the horizontal component of the velocity by multiplying the initial velocity by the cosine of the angle. Then use this new horizontal velocity and the initial vertical velocity to calculate the time it takes for the football to reach the ground. Finally, multiply the time by the horizontal velocity to find the new range.

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The Black Hills of South Dakota is an example of an eroded "batholith".

Magma does not generally achieve the surface. In the event that gas weights are not sufficiently extraordinary to constrain the magma to the surface, or if overlying rocks can't be infiltrated by it, the magma may gradually cool and frame an extensive pool of stone. Stone is effortlessly unmistakable by its extensive gem structure and blend of minerals, including light-hued quartzes and darker feldspars and micas. An expansive district of intru-sive molten shake, found profound inside the outside, is known as a batholith. Batholiths can frame the center of a mountain run. This batholith, once framed profound inside Earth's outside layer, is presently uncovered at an elevation surpassing 3300 meters (10,000 ft) above ocean level. The Black Hills of South Dakota are another exemplary case of this sort of geologic development.

Final answer:

The Moon orbits Earth instead of the Sun because it is closer to Earth. The strength of gravitational attraction is greater with proximity, despite the Sun's larger mass. The close distance to Earth thus ensures the Moon's stable orbit around it.

Explanation:

Even though the Sun has a greater mass than Earth, the Moon orbits Earth because it's closer to Earth than to the Sun. The gravitational force that an object experiences from another object is not just dependent on the mass but also on the distance between the two objects. In the Earth-Moon system, despite the Moon and the Sun both exerting gravitational forces on each other, the Moon remains in orbit around the Earth because it is much closer to Earth than it is to the Sun.

While the Sun is 27 million times more massive than the Moon, its gravitational pull on the Moon is lesser because it is 387 times farther away from the Earth than the Moon is. The gravitational force decreases with the square of the distance, which means that even a massive object like the Sun exerts a weaker force on the Moon compared to Earth, which is much closer.

Therefore, the Moon's orbit around Earth is stable because the Earth's gravitational pull on the Moon is significantly stronger than that of the Sun's due to the close proximity of the Moon to Earth. In the context of gravitational interactions, this proximity is the key factor in the Moon being Earth's natural satellite.

D. 5ft

Explanation:

The wave base of a wave is the depth at which there is no more perturbation of the medium caused by the wave. The wave base of a wave is determined to be half the wavelength of the wave itself.

In this problem, we have a wave with wavelength of 10 ft, so the wave base is

[tex]b=\frac{\lambda}{2}=\frac{10 ft}{2}=5 ft[/tex]