which statement is true about an object that is traveling in uniform circular motion? group of answer choices the net force on the object is directed away from the center of the circular path.

Answer:

\(Force = 13.8N\)

Explanation:

Given

\(Mass = 0.6kg\)

\(Acceleration = 23m/s^2\)

Required

Determine the applied force

From the question, we understand that no other force acts on the ball.

i.e. the only applied force on the ball is the force applied by the striker.

So, we apply Newton's second law to solve this question.

And this implies that:

\(Force = Mass * Acceleration\)

\(Force = 0.6kg * 23m/s^2\)

\(Force = 13.8N\)

Hence, the applied force by the striker on the ball is 13.8N

Hi there!

The equation for gravitational force is:

\(F_g = \frac{Gm_1m_2}{r^2}\)

We can plug in the given values to calculate Gm₁m₂:

\(2 * 10^{20} = \frac{Gm_1m_2}{(3.84*10^8)^2} \\\\Gm_1m_2 = 2.949 * 10^{37}\)

Now, we can calculate the new force with the other radius:

\(Fg = \frac{2.949*10^{37}}{(1.92*10^8)^2} = \large\boxed{8 * 10^{20} N}\)

**You could also look at the ratio between the two distances:

3.84 * 10⁸ : 1.92 * 10⁸

2 : 1

The new radius is 1/2 the size, so with the inverse square relationship of gravitational force:

1/2² = 1/4

The reciprocal of 1/4 is 4, so:

4(2.0 * 10²⁰) = 8.0 * 10²⁰ N

Answer:

The density of the 1,000,000 kg iceberg = The density of the 10 g iceberg

Explanation:

The given quantities of iceberg that will be the basis of the comparison of the densities of the iceberg;

The mass of the iceberg = 1,000,000 kg

The mass of the ice cube taken from the iceberg = 10 g

The density of a substance, is the measure of the mass of the substance per volume of the substance, it is a constant for the substance

\(Density = \dfrac{Mass}{Volume}\)

For the iceberg, the density of the iceberg is the property that indicates the volume occupied by a given mass of the iceberg

Because of density, we can estimate that the volume occupied by a 1,000 kg iceberg is 10 times the volume occupied by a 100 kg iceberg

We can write

The density of the 100 kg iceberg = 100 kg/(x m³)

The density of the 1,000 kg iceberg = 1,000 kg/(10 × x m³) = 100 kg/(x m³)

Therefore, the density of the 100 kg iceberg = The density of the 1,000 kg iceberg

Similarly,

The density of the 1,000,000 kg iceberg = The density of the 10 g iceberg because the 10 g iceberg was obtained from the 1,000,000 kg iceberg, and therefore, they have the same density.

A candle may be considered a more efficient producer of light than a flashlight because it converts chemical energy directly into light. Option a is correct.

The statement "A candle may be considered a more efficient producer of light than a flashlight because it converts chemical energy directly into light" implies that the conversion of chemical energy into light is more efficient in candles than in flashlights. While this statement is technically correct, it ignores the fact that candles are not a practical or sustainable source of light for most applications.

Flashlights are more efficient and practical because they allow for easy control of the light source, can be easily turned on and off, and can be powered by rechargeable batteries. Furthermore, candles are not as bright or long-lasting as flashlights, and they pose a fire hazard. Therefore, the practical considerations of using candles versus flashlights must also be taken into account. Hence, option a is correct.

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Answer: A. It brings scientists closer to distant objects.

Explanation:

When light from infinite coming toward the lens of the telescope then this light is converge at the focal plane of the lens. This will image which is formed at the focal plane worked as an object for another lens of the telescope.

Now another lens made the final virtual image which is seen by the observer.

So here in this whole process the main working of Telescope is to form the image of a distant object near to the eye of an observer. So the light coming from the infinite distance is collected together and then a bright image is formed by that light so that observer is able to see the image clearly

so here correct answer would be

A. It brings scientists closer to distant objects.

Answer:

Answer: A. It brings scientists closer to distant objects.

Explanation:

Answer:

Beryllium chloride

Explanation:

I hope this helps!

Can I get branliest?!

The atmosphere of the young Earth contained primarily nitrogen, carbon dioxide, and water vapor.

The early Earth's atmosphere is believed to have been primarily composed of nitrogen, carbon dioxide, and water vapor, with smaller amounts of other gases such as methane, ammonia, and sulfur dioxide. This atmosphere was very different from the present-day atmosphere, which is dominated by nitrogen and oxygen. The lack of oxygen in the early atmosphere was due to the absence of photosynthetic organisms that produce oxygen as a byproduct.

The composition of the early atmosphere played a crucial role in the development of life on Earth, as it provided the necessary conditions for the formation of organic molecules and the evolution of life. Over time, the Earth's atmosphere has undergone significant changes, including the addition of oxygen due to the emergence of photosynthetic organisms and human activity.

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Answer:

Explanation:

The series circuit with two light bulbs will illuminate more than the series with one light bulb because two light bulbs will have more energy as compared to one light bulb.

Answer:

Below

Explanation:

The block does not slide, so the force of friction equals the down the slope force.  Ff = 26 n     the Fn  is given as 42 N

Definition of  static coefficient of friction =  Ff/Fn = 26/42 = .62

The force exerted between two electric charges is inversely proportional to their squared distance, according to Coulomb's Law. The force will therefore weaken by a factor of 9 if the distance is tripled.

Describe Coulomb's Law. Coulomb's law states that the force of attraction or repulsion between positively colliding bodies is inversely proportional to the square of the length between them and directly proportional towards the product of their charges.

A non-contact attraction that works over a specified distance is called charged object interaction. Distance, charge, and distance. Every electrical connection requires force, which highlights how important these three elements are.

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In 1820, Hans Christian Orsted discovered the relationship between electricity and magnetism, which is now known as electromagnetism.

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Answer:

Lightning is an electrical discharge caused by imbalances between storm clouds and the ground, or within the clouds themselves. Most lightning occurs within the clouds. ... This heat causes surrounding air to rapidly expand and vibrate, which creates the pealing thunder we hear a short time after seeing a lightning flash.

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Brainliest?

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Answer:

Lightning can be explained in terms of charges produced due to rubbing. During a thunderstorm, the air currents move upwards and the water droplets move downwards. And this caused due to the separation of charge due to this vigorous motion.

Explanation:

Answer:

1.5891x10^-24

hope this helped :)

Based on the Radioactive Decay chart in the reading,  Plutonium is the element that  would emit destructive radioactive material, therefore the correct answer is option A

This radiation is released when a nucleus undergoes radioactive decay and transforms into a different isotope that may be radioactive (unstable) or non-radioactive depending on the number of neutrons and protons in the nucleus (stable).in other words one can say The ability of some unstable atoms to emit nuclear radiation spontaneously

Thus, Plutonium is the element that would emit destructive radioactive material, according to the radioactive decay chart in the reading, so option A is the appropriate response.

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Answer:

A carton of mass 50-kg slides across an icy surface at a speed of 4 m/s. Conclusion : The momentum of a carton of given mass moving with a particular velocity is 200 kg−m/s .

a) To calculate the average rate of change in cumulative distance travelled between consecutive days in the 2007 Tour de France, we need to determine the difference in distance covered between each pair of consecutive days and then divide it by the number of days.

Let's assume the distances traveled on consecutive days are represented by the variables D1, D2, D3, ..., Dn.

The average rate of change can be calculated as:

Average rate of change = (D2 - D1 + D3 - D2 + D4 - D3 + ... + Dn - Dn-1) / (n - 1)

b) The Tour de France race does not cover the same distance each day.

The cumulative distance traveled over several days in the race suggests that the distance covered varies from one day to another.

Factors such as the route, terrain, and stage length determine the distance covered each day.

The organizers of the race strategically plan different stages, which can vary in length and difficulty, to provide a diverse and challenging competition for the participants.

This variation in distance ensures a mix of flat stages, mountainous stages, time trials, and other types of challenges throughout the race, making it a grueling test of endurance and skill for the cyclists.

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Answer:

f = 270.37 Hz

Explanation:

Given that,

The length of the long open end air column, L = 63.8 cm

The speed of sound in the air is 345 m/s

We need to find the frequency of the air column. For an open pipe, the frequency is given by :

\(f=\dfrac{nv}{2L}\\\\f=\dfrac{345}{2\times 63.8\times 10^{-2}}\\\\f=270.37\ Hz\)

So, the frequency of the air column is equal to 270.37 Hz.

The potential energy stored in a spring stretched through a distance 'x' is given by:

U = (1/2)kx^2

where k is the spring constant.

In this problem, we are given that the potential energy of the spring when stretched through a distance 'a' is 25 J. Therefore, we can write:

25 = (1/2)ka^2

Solving for k, we get:

k = (2*25)/a^2 = 50/a^2

Now, we need to find the amount of work done on the spring to stretch it by an additional distance '5a'. The work done can be found using the work-energy principle, which states that the work done on an object is equal to the change in its kinetic energy plus the change in its potential energy.

In this case, there is no change in kinetic energy since the spring is not moving. Therefore, the work done is equal to the change in potential energy:

W = U_final - U_initial

where U_final is the potential energy of the spring when stretched through a distance '6a' (i.e., 'a' plus an additional '5a'), and U_initial is the potential energy of the spring when stretched through a distance 'a'.

The potential energy of the spring when stretched through a distance '6a' is:

U_final = (1/2)k(6a)^2 = (1/2)(50/a^2)(36a^2) = 900 J

Therefore, the amount of work done on the spring to stretch it by an additional distance '5a' is:

W = U_final - U_initial = 900 J - 25 J = 875 J

So, the amount of work done on the spring is 875 J.

The given statement "scientists are concerned about the decrease in ozone is allowing more ultraviolet" is true because ozone is a molecule made up of three oxygen atoms that exist in the Earth's atmosphere. It's a form of oxygen that absorbs almost all of the Sun's harmful ultraviolet light.

Ultraviolet rays are very harmful to humans, causing skin cancer, immune system breakdowns, and cataracts in the eyes. When the ozone layer is damaged or thinned, it can allow more ultraviolet rays to penetrate the atmosphere, which is why scientists are so concerned about ozone depletion.What are the impacts of ozone depletion?It is estimated that a 1% reduction in the ozone layer increases the incidence of non-melanoma skin cancer by 2%.A decrease of 10% in the ozone layer may result in a 20% increase in the incidence of skin cancer.The thinning of the ozone layer may result in a decrease in plant production, which may result in food supply shortages.A decrease in ozone may have an impact on phytoplankton, which play a crucial role in ocean food webs. These tiny creatures consume carbon dioxide and produce half of the world's oxygen. As phytoplankton numbers decline, ocean ecosystems may change, affecting everything from fish populations to weather patterns.

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Answer:

700 km

Explanation:

500 km / 5 hr is its speed     5 + 2 is time traveled

500 km / 5 hr    * ( 5 + 2 hr) = 700 km

Answer:

A: Excess H+ is absorbed by bicarbonate ions.

Explanation:

Answer:

The amount of gravitational force INCREASES as the distance between two objects increases; thus, an astronauts weight DECREASES as she or he moves away from earth into space.

hope this helped.

False. With phase modulation (PM), the message amplitude and message bandwidth are not directly related to the modulated carrier bandwidth.

In phase modulation (PM), the carrier signal's phase is varied in accordance with the message signal. Unlike amplitude modulation (AM), where the message amplitude directly affects the modulated carrier's amplitude, PM primarily focuses on varying the phase of the carrier wave.

The message amplitude refers to the strength or intensity of the audio or data signal being transmitted. It represents the varying power levels of the signal over time. On the other hand, the message bandwidth refers to the range of frequencies occupied by the message signal.

In phase modulation, the key factor that affects the modulated carrier bandwidth is the frequency deviation, which determines the amount of phase shift applied to the carrier signal. The higher the frequency deviation, the larger the bandwidth required to accommodate the modulated signal.

The message amplitude and message bandwidth do not have a direct relationship with the modulated carrier bandwidth in PM. The phase modulation process primarily focuses on varying the phase of the carrier wave to encode information, while the amplitude and bandwidth of the message signal are separate considerations.

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The characteristics of light include energy, rhythm, and wavelength. How frequently waves pass a spot in space ,time is measured as frequency. The distance separating equally spaced wave points is known as wavelength.

A wave cycle's length and frequency are crucial elements. The space between any two matching spots on adjacent waves is also referred to as a wavelength. In addition, frequency is the quantity of waves that travel through a certain spot in a given period of time.

The distance between each trough or the difference between each wave's crest and the next one. Various "yardsticks" used to gauge radiation levels is this.

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The X-component of the velocity is -15.6 m/s and the Y-component of the velocity is -16.3 m/s.

The X-component is found by using the equation Vx = Vcos(θ), where V is the magnitude of the velocity (18 m/s) and θ is the angle (220∘ counterclockwise from the x axis). Thus, Vx = 18cos(220) = -15.4 m/s.

The Y-component is found by using the equation Vy = Vsin(θ), where V is the magnitude of the velocity (18 m/s) and θ is the angle (220∘ counterclockwise from the x axis). Thus, Vy = 18sin(220) = -16.3 m/s.

Counterclockwise motion is a rotational motion in which an object rotates in a direction opposite to the direction of the hands of a clock. This type of motion is commonly seen in the spinning of a top, the orbiting of planets around the sun, and the rotation of the Earth on its axis.

Velocity is a measure of the speed and direction of an object's motion. It is measured in units of distance per unit of time, such as meters per second (m/s). Velocity is different from speed, which is a scalar quantity and is the magnitude of the velocity. Speed is usually measured in the same units of distance per unit of time, such as miles per hour (mph).

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Distance covered by the squirrel to look for an acorn :

d = ( 3 m/s ) × 10 s = 30 m.

Time taken to eat an Acron is 5 seconds.

Time taken to cover distance of 30 m with 2 m/s speed is :

\(T=\dfrac{30}{2}\ s= 15 \ s\)

Therefore, total time take to  get back to where he started is ( 10+5+15 ) = 30 s.

Hence, this is the required solution.

Answer:

it wont let me commment so i need to know if the answer above is correct

Explanation:

Answer: Work done = 838470

Explanation:

Explanation:

Draw a free body diagram.  There are two forces: weight force pulling down and air resistance pushing up.

Sum the forces in the y direction:

∑F = 50 N − (30 kg) (10 m/s²)

∑F = -250 N