A stone is thrown horizontally at 30.0 m/s from the top of a very tall clifl. (a) Calculate its borzoetal peasation and vertical poution at 2 s intervals for the first 10.0s. (b) Plot your positions f

C. analyze the results....

The acceleration is the same, if the initial velocity is the same, the times of going up and down are the same.

If the initial velocity is the same for both processes, the acceleration is the same and the times are the same.

The relationship between the net force, the masses, and the acceleration of the bodies is established by Newton's second law.  

∑ F = m a

In the image of the block moving up and down the ramp in the attached, a free-body can be observed; in this example, the x-axis is parallel to the ramp and the y-axis is perpendicular. The reference system is a coordinate system with respect to which the forces are depicted.

Sinθ =  Wₓ/W

Cosθ =  W_y/W

Wₓ = WSinθ

W_y = Wcosθ  

Newton's second law for each axis.

Case 1. Block slides down on x-axis

Wₓ = ma

mg sinθ = ma

a = g sin θ

Case 2. Block rises

X-axis

- Wₓ = m a

- mgsin θ = a

a = - g sin θ

Acceleration is equal in both cases, if the block has the same initial speed, the rise and fall time is the same.

y = v₀ t - ½ a t²

y = ½ a t²

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Your question is incomplete, most probably the full question is this:

(b) The block takes time tup to slide up the ramp a distance x The block then takes time down to slide back down to the bottom of the ramp, where it has speed up. Is flows greater than equal to

or less tup?

tdown >tup -tdown = tup .tdown In a clear, coherent paragraph-length response that may also contain figures and/or equations, explain your reasoning. If you need to draw anything other than what you have shown in part (a) to

assist in your response, use the space below. Do NOT add anything to the figures in part (a).

The force required for the jet to take off from an aircraft carrier is 773,490 N (Newton).

To calculate the force required for the jet to take off from the aircraft carrier, you can use Newton's second law of motion, which is:

Force (F) = Mass (m) × Acceleration

(a) Given the mass (m) of the jet as 21,000 kg and the acceleration

To calculate the force required for the 21000 kg jet to accelerate at 36.9 m/s^2, we need to use Newton's second law of motion which states that force (F) is equal to mass (m) multiplied by acceleration (a).

So,

F = m x a
F = 21000 kg x 36.9 m/s^2
F = 773,490 N

∴ force required = 773,490 N

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As you just said, the elephant "... has a mass of 6,000 kg ...". It doesn't matter where.

Answer:

The length of the bond is determined by the number of bonded electrons (the bond order). The higher the bond order, the stronger the pull between the two atoms and the shorter the bond length. Generally, the length of the bond between two atoms is approximately the sum of the covalent radii of the two atoms.

Explanation:

The cannonball lands 12.4 km from the cannon if the cannonball is fired with a velocity of 551 m/s in the cannon is aimed 12° above the ground.

R = u² sin 2θ / g

R = Horizontal range

u = Initial velocity

θ = Angle made with ground

g = Acceleration due to gravity

u = 551 m / s

θ = 12°

g = 9.8 m / s²

R = 551² sin 2 ( 12° ) / 9.8

R = 303601 * 0.4 / 9.8

R = 12392 m

R = 12.4 km

The horizontal range of a projectile is the horizontal distance travelled by the projectile from the point from which it was launched. It is denoted by R.

Therefore, the cannonball lands 12.4 km from the cannon

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The correct answer is A. A water molecule entering the lake will remain in the lake for 600 years.

Residence time refers to the average amount of time that a water molecule spends in a particular body of water, such as a lake. In the case of Lake Tahoe, the residence time is approximately 600 years. This means that, on average, a water molecule that enters the lake will remain in the lake for 600 years before leaving through the outlet.

Option B is incorrect because the total volume of water in Lake Tahoe can vary due to precipitation, evaporation, and other factors.

Option C is also incorrect because the residence time of water in Lake Tahoe does not necessarily relate to the ability of the lake to sustain aquatic life.

Option D is incorrect because outflow from Lake Tahoe occurs regularly and is not limited to once every 600 years.

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Explanation:

see the attachment.. hope it will help you

The speed of the current is 3 mph.

Let's say the speed of Micah's boat is x miles per hour, and the speed of the current is y miles per hour.

If the speed of the boat is higher than the speed of the water, he will be rowing against the current, and if the speed of the water is higher, he will be rowing with the current. Using this logic, we can set up the following two equations to solve for x and y:

For downstream motion,

\(x + y = 4.48/0.32= 14 mph\)

For upstream motion,

\(x - y = 4.48/0.56 = 8 mph\)

From these two equations, we can solve for x and y by adding the equations together.

\(2x = 22, x = 11 mph\)

Substitute x into one of the original equations to solve for y.

\(11 + y = 14, y = 3 mph\)

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Photochemical smog is formed when primary air pollutants interact with sunlight.

Photochemical smog is the result of the reaction between pollutants like  nitrogen oxides (NO), sunlight and volatile organic compound (VOC) in the atmosphere. The sources of NO are car exhaust, coal power plants, factory emissions, etc. This type of smog is also known by the name Los Angeles smog.

Air pollutants are the particles present dissolved in the air, which when inhaled by the organisms can cause serious health issues. These pollutants are :ozone, particulate matter, gaseous oxides, etc. These pollutants majorly affect the respiratory system of the humans.

Therefore, photochemical smog is a form of pollution created when vehicle exhaust interacts with sunlight.

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Answer:

a little to late

Explanation:

srry

Answer:

(c) displacement

sure answer...

Hope it helps....Pls mark as Brainliest!!!

Answer: 25 g

Explanation:

Answer:

W = 3.92 N

Explanation:

m = 400 gr = 0,4 kg

W = m . g = 0,4 x 9.8

W = 3.92 N

Answer:

24 metre

Explanation:

From the available information in this question,

The swarm of bees moves at 0.20 per second

If it moves at

O.20 = 1 second,

We have a minute to be = 60 seconds

So in one 1 minute the velocity =

0.20 x 60 seconds

= 12 meters

The 2 minutes = 60 seconds x 2

2 minutes = 120 seconds

120 x 0.20 = 24 meters

So in 2 minutes these swarm of bees are going to travel a distance of 24 metres

Answer:

\(\boxed {\boxed {\sf E_p= 515.025 \ J}}\)

Explanation:

Potential energy is found using this formula:

\(E_p= mgh\)

The mass of the baby in the carriage is 1.5 kilograms and the height is 35 meters. Assuming this is on Earth, the gravitational acceleration is 9.81 meters per square second.

\(m=1.5 \ kg \\g= 9.81 \ m/s^2\\h= 35 \ m\)

Substitute the values into the formula.

\(E_p= (1.5 \ kg )( 9.81 \ m/s^2)(35 \ m )\)

Multiply the first numbers together.

\(E_p= 14.715 \ kg*m/s^2 (35 \ m )\)

Multiply again.

\(E_p= 515.025 \ kg*m^2/s^2\)

\(E_p= 515.025 \ J\)

The potential energy is 515.025 Joules.

Answer:

D.Elastic energy| Magentic energy

Answer:

Explanation:

Sound, seismic, and electromagnetic waves transmit energy through different mediums due to the motion of particles in the medium.

Sound waves transmit energy through the vibration of particles in a solid, liquid, or gas. The energy is transferred from particle to particle as the wave travels through the medium.

Seismic waves are created by the sudden release of energy from earthquakes, volcanic eruptions, or other geological events. These waves travel through the Earth's solid mantle and crust, transmitting energy through the vibration of particles in the rock.

Electromagnetic waves are a type of wave that does not require a medium to travel through. They are created by the motion of charged particles, such as electrons, and can travel through a vacuum, such as space. Electromagnetic waves transfer energy through the oscillation of electric and magnetic fields.

Answer:

8. GPE

9. KE

Explanation:

GPE=mgh

KE=(1/2)mv^2

For an 85 kg man walking on a treadmill at a speed of 2.8 mph with a 6% grade, we can calculate both the relative and absolute VO2 values. Similarly, for a 65 kg woman running on a treadmill at a speed of 6.0 mph with a 2% grade.

1. For an 85 kg man walking on a treadmill at a speed of 2.8 mph with a 6% grade:

Relative VO2:

\(\[\text{{VO}}2_{\text{{relative}}} = 3.5 + 0.1 \times \text{{speed}} + 1.8 \times \text{{speed}} \times \text{{grade}}\]\[\text{{VO}}2_{\text{{relative}}} = 3.5 + 0.1 \times 2.8 + 1.8 \times 2.8 \times 0.06\]\[\text{{VO}}2_{\text{{relative}}} \approx 7.33 \, \text{{ml/kg/min}}\]\)

Absolute VO2:

\(\[\text{{VO}}2_{\text{{absolute}}} = \text{{VO}}2_{\text{{relative}}} \times \text{{body weight}}\]\[\text{{VO}}2_{\text{{absolute}}} = 7.33 \times 85\]\[\text{{VO}}2_{\text{{absolute}}} \approx 622.05 \, \text{{ml/min}}\)

2. For a 65 kg woman running on a treadmill at a speed of 6.0 mph with a 2% grade:

Relative VO2:

\(\[\text{{VO}}2_{\text{{relative}}} = 3.5 + 0.1 \times \text{{speed}} + 1.8 \times \text{{speed}} \times \text{{grade}}\]\[\text{{VO}}2_{\text{{relative}}} = 3.5 + 0.1 \times 6.0 + 1.8 \times 6.0 \times 0.02\]\[\text{{VO}}2_{\text{{relative}}} \approx 12.37 \, \text{{ml/kg/min}}\]\)

Absolute VO2:

\(\[\text{{VO}}2_{\text{{absolute}}} = \text{{VO}}2_{\text{{relative}}} \times \text{{body weight}}\]\[\text{{VO}}2_{\text{{absolute}}} = 12.37 \times 65\]\[\text{{VO}}2_{\text{{absolute}}} \approx 803.05 \, \text{{ml/min}}\]\)

These calculations provide the values for both the relative and absolute VO2 for the given scenarios. The relative VO2 is expressed in milliliters per kilogram per minute (ml/kg/min), and the absolute VO2 is given in milliliters per minute (ml/min).

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The speed that a fly with a mass of 0.65 g would need in order to have the same kinetic energy as a 1250 kg automobile traveling at a speed of 11 m/s is 2133.97 m/s.

Given:mass of fly, m1 = 0.65 g = 0.00065 kg

speed of automobile, v2 = 11 m/smass of automobile, m2 = 1250 kg

To find: Speed of fly with kinetic energy same as automobile

Formula:Kinetic energy = 0.5 * mass * speed²

Solution:Let v1 be the speed of the fly

Kinetic energy of automobile = Kinetic energy of fly0.5 * m2 * v2² = 0.5 * m1 * v1²

Substituting given values0.5 * 1250 * 11² = 0.5 * 0.00065 * v1²v1² = (0.5 * 1250 * 11²)/0.00065v1² = 4545454.55v1 = √(4545454.55)v1 = 2133.97 m/s

Therefore, the speed that a fly with a mass of 0.65 g would need in order to have the same kinetic energy as a 1250 kg automobile traveling at a speed of 11 m/s is 2133.97 m/s.

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Answer:

C. Light does not need a medium to travel through, but since sound waves must have a medium to vibrate, sound is not created where no air is present.

Explanation:

The reason the bell is seen to vibrate but not heard is that unlike light, which does not require a medium to pass through, sound waves require an air-filled space in order to vibrate. Option C is correct.

A sound wave is produced when a medium begins to vibrate. When an entity vibrates, a pressure wave is formed, which causes sound.

Light does not need a medium to travel through, but since sound waves must have a medium to vibrate, the sound is not created where no air is present best describes why the bell is seen vibrating but not heard.

The complete question is attached.

Hence option C is correct.

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The plane travels a distance of 325 miles if the airplane travels for 2.5 hours at an average speed of 130 miles per hour. Using the distance formula (d = rt), we can calculate the distance.

To find the distance traveled by the airplane, we can use the distance formula, which is represented as d = rt. In this formula, "d" represents the distance, "r" represents the rate or speed at which the object is traveling, and "t" represents the time taken for the travel.

Given that the airplane travels for 2.5 hours at an average rate of 130 miles per hour, we can substitute these values into the formula. The rate of the airplane is 130 miles per hour, and the time taken is 2.5 hours.

Using the formula, we can calculate the distance traveled as follows:

d = rt

d = 130 mph × 2.5 hours

Multiplying the rate (130 mph) by the time (2.5 hours) gives us:

d = 325 miles

Therefore, the airplane travels a distance of 325 miles during the 2.5 hours of travel at an average rate of 130 miles per hour.

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The magnitude of the frictional force acting on the 5 kg box will be 15 N

The coefficient of kinetic friction is defined as the ratio of force of kinetic friction to the normal reaction between the two surfaces in contact.

F = normal force

fr = frictional force

mu = coefficient of kinetic friction

since ,

fr = mu * F

   = mu * mg       ( as N = mg)

   = 0.30 * 5 * 9.8

   = 14.7 N

   ≈ 15 N

The magnitude of the frictional force acting on the 5 kg box will be a) 15 N

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Answer:

the number of protons.

Explanation:

the atomic number is the number of protons in the nucleus of an atom. the number of protons Define the identity of an element.

Answer:

45km/hr

Explanation:

Total distance=450km

Total speed=50km/hr

Total time= distance/speed

=450/50

=9hrs

distance a=180km

speed a=60km/hr

Time a=180/60

=3hrs

Distance b=450-180=270km

Speed b=?

Time b=270/speed b

Total time=time a + time b

9=3+(270/speed b)

270/speed b =9-3

270/speed b =6

6*speed b =270

Speed b=270/6

Speed b=45km/hr

Answer:

45km/hr

Explanation:

Total distance=450km

Total speed=50km/hr

Total time= distance/speed

=450/50

=9hrs

distance a=180km

speed a=60km/hr

Time a=180/60

=3hrs

Distance b=450-180=270km

Speed b=?

Time b=270/speed b

Total time=time a + time b

9=3+(270/speed b)

270/speed b =9-3

270/speed b =6

6*speed b =270

Speed b=270/6

Speed b=45km/hr

If Ben is covering three topics, then he should change to a different slide color each time he changes to a new topic. Option C

The term slide presentation has to do with a presentation that is done by the use a slide program such as Microsoft PowerPoint or any other slide tool that could be used for the purpose of presentation.

Now we know that the aim of the presenter must always be to engage the attention of the audience and make the message as clear as possible.

We know that most people need to use various presentation tools especially for the purpose of academics or in a business setting where someone needs to show facts and data about things on a screen during presentation.

Hence, the statement that makes the most sense as Ben is doing the presentation is that; "If Ben is covering three topics, then he should change to a different slide color each time he changes to a new topic."

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Answer:

3 N

Explanation:

From the question given above, the following data were obtained:

Mass of block = 100 Kg

Net force = 3 N

From the question given above, we were told that the net force acting on the block is 3 N.

Thus, 3 N remains the net force acting on the block.

Explanation:

According to Newton's second law of motion:

Force is directly proportional to

Change of momentum/time taken

Change of momentum= mv-mu

where m is mass, u is initial velocity and v is final velocity. so,

F∝mv-mu/t

F∝m(v-u)/t

F∝ma (a=v-u/t)

F=kma where k is a constant

In SI units the value of k will become one so the equation will be:

F=ma