what is the main difference between a theory and a law?

Answer:

solid 6.

Explanation:

Observe the path taken by P and S waves in the model planet.

Answer:

a. Information and Communication

Explanation:

The modern photographic camera evolved from the camera obscura. The functioning of the camera is very similar to the functioning of the human eye. The first permanent photograph was made in 1825 by Joseph Nicéphore Niépce.

Answer:

C. Beats

Explanation:

When waves are interfering with each other, the sound is louder in some places and softer in others. As a result, we hear pulses or beats in the sound.

Answer:

beats

Explanation:

got it right

Answer:

All but number 5

Explanation:

A wave is a repeating disturbance or movement that transfers energy through matter or space, sound cannot travel through a vacuum and neither can light. light and sound travel in waves which is what makes them a repeating disturbance

Answer:

Density

Amount of matter = mass

Amount of space it takes up = volume

Explanation:

Answer:

b

Explanation:

A box camera is a simple type of camera, the most common form being a cardboard or plastic box with a lens in one end and film at the other. They were sold in large numbers during the late 19th and early 20th centuries. The lenses are often single element designs meniscus fixed focus lens, or in better quality box cameras a doublet lens with minimal (if any) possible adjustments to the aperture or shutter speeds. Because of the inability to adjust focus, the small lens aperture and the low sensitivity of the sensitive materials available, these cameras work best in brightly lit day-lit scenes when the subject is within the hyperfocal distance for the lens and of subjects that move little during the exposure. Eventually, box cameras with photographic flash, shutter and aperture adjustment were introduced, allowing indoor photos.

Learn more about Pinhole Cameras

Visit —

1) Advantages of Pinhole Cameras          https://brainly.in/question/2724158

2) Is working of camera is similar to that of pin hole camera?brainly.in/question/14388967?referrer=searchResults

3) Uses of pin hole camera?                                
brainly.in/question/596597?referrer=searchResults

Hope my answer helps you ✌️

Mark BRAINLIEST

#SPJ3

Answer:

a simple box-shaped hand camera, typically lacking an adjustment for shutter speed.

Answer:

Explanation: Not only does technology allow students to access an array of online materials but also attend thousands of useful online learning courses. In addition, by using electronic devices, students can also sharpen their computer skills and become more autonomous learners. Secondly, using electronic devices can significantly aid the teaching process. Thanks to top-notch facilities such as projectors and interactive whiteboards, teachers can deliver lessons in a more vivid and lively way, engaging students in their lessons and creating a stimulating classroom environment. Finally, electronic devices can boost interaction.

Answer:

Explanation: COMPOST BIN

WHAT IS A COMPOST BIN?

A compost bin is a container into which you place organic waste to turn into compost (organic material) over time.

Most compost bins are designed to hasten the decomposition of organic matter through proper aeration and moisture retention. With the proper combination of air and moisture, ideal conditions are produced for the activity of aerobic organisms responsible for the high temperatures that transform the organic materials into compost

Read on to find out how to start a compost bin, DIY compost bin ideas, and more tips for beginners.

The decomposition process will eventually take place over time in a compost "pile" or "heap," even without any housing to contain the matter. However, a compost bin is worth it because it helps speed up decomposition and keeps the area neat. Some bins are continuous, meaning you can keep adding waste to them, while others create batches of compost with a set mix of ingredients you add all at once. Depending on the style of compost bin you choose, bins can also have the advantage of making it harder for rats to get at your compost. This is true of the tumbler type, for example.

CHOOSING THE RIGHT BIN

Select the right bin for your composting needs. You can make an inexpensive compost container out of almost any container or material. Some ideas include:

Plastic storage container

Plastic bucket

Trash cans

Straw bales

Lumber

Branches harvested from the woods

Stone

Cinder blocks

Wire fencing

Ceramic (also popular for a kitchen countertop compost bin)

The best bin, however, is one you can easily turn or rotate consistently to control odors and make sure all the materials decompose. This is especially important for aerobic composting (more information below). A tumbler composting bin is pricey, but you can DIY one from barrels and sawhorses. You can turn compost with a rake or shovel in a non-rotating bin, it just takes more labor to do so.

Pls, mark as brainlist

Answer: no

Explanation:

Answer:

period: 4

group: 15

family: phosphorus

1. The kinetic energy of the truck is 1959940.8 J

2. The kinetic energy of the car is 463037.04 J

The kinetic energy of the 6000 Kg truck can be obtained as follow:

KE = ½mv²

KE = ½ × 6000 × 25.56²

KE = 1959940.8 J

Thus, the kinetic energy is 1959940.8 J

The kinetic energy of the 6000 Kg truck can be obtained as follow:

KE = ½mv²

KE = ½ × 1200 × 27.78²

KE = 463037.04 J

Thus, the kinetic energy is 463037.04 J

Learn more about kinetic energy:

https://brainly.com/question/25959744

#SPJ1

The independent variable is the manipulated variable.

Your question is incomplete but I will try to shed some light on dependent and independent variables.

The independent variable is the variable that is being manipulated or changed in an experiment or study. It is the variable that the experimenter changes on purpose in order to observe the effects on another variable.

The dependent variable, on the other hand, is the variable that is being measured or observed. It is dependent on the independent variable because it changes in response to changes in the independent variable.

Learn more about independent variable:https://brainly.com/question/29430246

#SPJ1

Answer:

Did it on Edge

Explanation:

Answers:

Height of the track

Speed of the car

Answer:

Selective Breeding

Explanation: It's selective breeding because the chicken being breeded by the farmer can produce wayyyyy more eggs.

Answer:

Seconds

Explanation:

Seconds are used most in physics, biology and chemistry to either determine the speed of ano object or in this case for biology and chemistry used to measure rate of reaction

Their velocity after the collision was 2 m/s.

According to the principle of momentum conservation, momentum is only modified by the action of forces as they are outlined by Newton's equations of motion; momentum is never created nor destroyed inside a problem domain.

Given parameters:

one player (m=100kg) was moving at a velocity of 8 m/s initially.

Another  player (m=300kg) who was at rest (v=0m/s) initially.

After collision they stuck together and let the velocity of them is v.

According to principle of conservation of momentum,  total momentum remains conserved.

total initial momentum = total final momentum

100×8 + 300×0 = (100 + 300)v

400v = 800

v = 2.

Hence,  their velocity after the collision was 2 m/s.

Learn more about momentum here:

https://brainly.com/question/24030570

#SPJ5

Answer:

Explanation:

Maybe because people call babies cute and youd bassically be saying theyre babies

Answer:

The estimated braking force needed to stop the lorry is zero, based on the given information and calculations. However, it's important to note that this result is likely not accurate, as some force is required to stop a moving object. It's possible that additional information or calculations are needed to obtain a more realistic estimate of the braking force.

Explanation:

To estimate the braking force needed to stop the lorry, we can use Newton's second law of motion, which states that force (F) is equal to mass (m) multiplied by acceleration (a).

In this case, the lorry decelerates uniformly, so the acceleration is constant. The initial velocity is assumed to be zero since the lorry comes to a stop. The final velocity is also zero. Therefore, we can use the equation:

Final velocity squared (vf^2) = Initial velocity squared (vi^2) + 2 * acceleration (a) * distance (d)

Since vi = 0 and vf = 0, the equation simplifies to:

0 = 0 + 2 * a * d

Solving for acceleration (a), we have:

2 * a * d = 0

a = 0

Since the acceleration is zero, it means that the braking force needed to stop the lorry is also zero. This is likely not an accurate result as some force is required to stop the lorry. It's possible that additional information or calculations are needed to accurately estimate the braking force.

The braking force required to stop a 6371 kg lorry after spotting a hazard and applying the brakes is what the question is asking for. The lorry decelerates uniformly and comes to a stop 60 meters after the brakes are applied.

The following steps will guide you on how to calculate the braking force:

Step 1: Determine the mass of the lorry which is 6371 kg. This will be denoted as m.

Step 2: Determine the distance travelled by the lorry, which is 60 m.

Step 3: Determine the time taken by the lorry to stop. This can be done by using the formula for uniform deceleration, which is a = (v-u)/t where v is the final velocity, u is the initial velocity and a is the uniform deceleration. Since the lorry comes to a stop, its final velocity is zero and its initial velocity is unknown.

However, we can assume that the lorry was initially travelling at a constant speed before spotting the hazard. Therefore, we can assume that the initial velocity was equal to the average velocity of the lorry before the brakes were applied.

This can be calculated using the formula v = d/t where d is the distance travelled and t is the time taken. The average velocity can therefore be calculated as follows: v = d/t = 60 m/t

Step 4: Rearrange the formula for uniform deceleration, a = (v-u)/t, to find u which is the initial velocity. Since the lorry comes to a stop, we know that v = 0.

Therefore: u = v - at where a is the uniform deceleration and t is the time taken to stop which is also equal to the time taken for the lorry to travel the distance of 60 meters. Substituting for v, we get: u = - at

Step 5: Calculate the acceleration of the lorry using the formula a = (v-u)/t. Since the final velocity is zero, we get: a = -u/t = -(-at)/t = a The acceleration is negative since the lorry is decelerating.

Step 6: Calculate the braking force using the formula F = ma where F is the braking force and m is the mass of the lorry. Therefore: F = ma = (-ma) since a is negative = (-6371 kg) (a) Therefore, the braking force required to stop the lorry is -6371a N where a is the uniform deceleration calculated in Step 5.

For more such questions on lorry decelerates

https://brainly.com/question/16964101

#SPJ8

Answer:

A

Explanation:

The slope of the graph has the units of vertical axis divided by horizontal axis. This means that the slope of a distance vs time graph is distance/time, or velocity.

Slope is calculated by "rise over run" so C is incorrect.

Since the slope represents velocity, a constant slope equates to a constant velocity, hence B is incorrect. Same reasoning for D being incorrect: if the slope is zero, the object is not moving.

The group which was designed to study Saturn is C. Voyager 1, Huygens, and Cassini. It was a collaborative mission involving NASA, ASI, and ESA.

The trio of Voyager 1, Huygens, and Cassini embarked on groundbreaking missions, collectively enhancing our understanding of Saturn and its diverse moons. Launched by NASA in 1977, Voyager 1 ventured into the outer solar system, conducting close flybys of Jupiter and Saturn, capturing detailed imagery and valuable scientific data.

Huygens, a constituent of the collaborative Cassini-Huygens mission involving NASA, ESA, and ASI, made a historic touchdown on Saturn's moon Titan in 2005. It meticulously examined Titan's atmosphere and surface, yielding unprecedented insights.

Meanwhile, the Cassini spacecraft, another integral part of the Cassini-Huygens mission, meticulously orbited Saturn for more than 13 years. Cassini extensively studied Saturn's rings, atmosphere, and numerous moons, unraveling captivating discoveries such as new moons and tempestuous storms.

The Cassini mission culminated with a planned atmospheric entry into Saturn. These missions collectively revolutionized our knowledge of Saturn, its enigmatic rings, and its captivating moons.

To learn more about NASA,

https://brainly.com/question/20763143

Answer:

Convection currents are the result of different heating. Lighter material (warm) rises while heavier (cold) material sinks. This movement of the materials is what causes convection currents! (BTW, it happens in water, in the atmosphere, and in the mantle of Earth!

Explanation:

I hope this helps a little! :)

Answer:

39,200J

Explanation:

just took the test

The meteor's potential energy if it has a mass of 10kg at an altitude of 400 m will be 39200 J

Potential Energy that depend upon the relative position of various parts of system . It is an energy possessed by an object by virtue of its position or configuration.

mass(m)  = 10kg

g (acceleration due to gravity) = 9.8m/s^2

altitude(height (h)) = 400m

Meteor's Potential energy = m * g * h

                                           = 10 * 9.8 * 400 = 39200 J

correct option will be a) 39200 J

learn more about Potential Energy :

https://brainly.com/question/14404024?referrer=searchResults

#SPJ3

Answer: 1. Material being transported 2. The temperature of the material being transported 3. How long the pipes will be there (lifespan)

Explanation: 1. - The pipe builder should consider the material being transported to choose the correct material of the pipes to use, so they last long and can hold the material.

2. - Similar to 1, the pipe builder should consider the temperature of the material to choose the correct material of the pipes to use, so the pipes don’t break and function properly.

3. - If the pipe builder uses a material that can hold the material, that’s great! If that material will last a short time, it would not work if the pipes were to be used for a long time.

The things you said before about viscosity, density, and pressure are also correct. The correct answers are mainly talking about factors of the material being used in the pipes.
hope this helped :)

Answer:

atoms that no longer have a neutral charge are called ions!

Explanation:

when atoms gain or lose electrons, they become either negatively charged or positively charged in the process. losing electrons means the atom becomes more positive, therefore positively charged. gaining electrons means the atom becomes more negative, so negatively charged. atoms that go through this process of gaining or losing electrons are called ions.

Answer:

TRUE

Explanation:

The mechanical energy of an object can be the result of its motion and/or the result of its stored energy of position.

Answer:

Explanation: