if a dolphin swims at 15 m/s for 30 seconds, how far would the dolphin swim?

Answer:

C

Explanation:

The starting skill level of the physical activities included in a personal fitness program should be determined from other individuals' fitness programs is a statement which is not true. Everyone starts their personal fitness journey at a different level which should be regarded . A fitness test should be taken to determine where an individual should start their new lifestyle.

Answer:

C. I got it right :)

Explanation:

Answer:

a) Let horizontal component be h

4/3×h= 9

4h = 9x3

h = 27/4

b) Magnitude = √ [9²+ (27/4)²

= 11.25

To calculate the final volume of oxygen gas, we need to use the combined gas law formula, which is:

(P₁V₁/T₁) = (P₂V₂/T₂)

Where P is the pressure, V is the volume, and T is the temperature.

First, we need to convert the temperatures to Kelvin by adding 273.15:

T₁ = (95.3 + 273.15) K = 368.3 K
T₂ = (0.0 + 273.15) K = 273.15 K

We know the initial volume (V₁) is 1.55 mL or 0.00155 L. We don't know the final volume (V₂) but we can calculate it using the formula above:

(P₁V₁/T₁) = (P₂V₂/T₂)

We know the pressure doesn't change, so we can substitute in the pressure of oxygen gas at room temperature (1 atm):

(1 atm x 0.00155 L) / 368.3 K = (1 atm x V₂) / 273.15 K

Solving for V₂, we get:

V₂ = (1 atm x 0.00155 L x 273.15 K) / (368.3 K x 1 atm)
V₂ = 0.00115 L or 1.15 mL

Therefore, the final volume of oxygen gas is 1.15 mL after cooling from 95.3 degrees Celsius to 0.0 degrees Celsius.

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The average speed of the trolley after 5 seconds, given that it travels from2 m/s to 14 m/s is 8 m/s

First, we shall determine the total distance travelled in 5 seconds. Details below:

s = ½(u + v) × t

s = ½ × (2 + 14) × 5

s = ½ × 16 × 5

s = 8 × 5

s = 40 meters

Finally, we shall determine the average speed of trolley. This is shown below:

Average speed = Total distance / total time

Average speed = 40 / 5

Average speed = 8 m/s

Thus, the average speed of the trolley is 12.8 m/s

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The force between a pair of cars in a train undergoing constant acceleration is much more significant compared to the forces between other cars in the same train.

The hypothesis on how the force between a pair of cars in a train undergoing constant acceleration compares to the forces between other cars in the same train is detailed below.

As the cars in a train undergo constant acceleration, the force between a pair of cars is more significant than the forces between other cars in the same train. This is due to the fact that as the acceleration increases, the force between a pair of cars increases because the car at the back is pushed forward while the car in front is pulling backward, and as a result, there is an increase in the force acting between the two cars.

                                    However, the forces between other cars in the same train are not as significant as the force between a pair of cars because there is no direct contact between them, and hence the force is much less. The greater the acceleration, the greater the force acting between a pair of cars in the train, while the force acting between other cars remains negligible.

Therefore, the force between a pair of cars in a train undergoing constant acceleration is much more significant compared to the forces between other cars in the same train.

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In a system where an extrasolar planet orbits around a star, both objects are affected by the gravitational attraction between them. This causes the star to make a small orbit around the system's centre of mass, in addition to the planet's larger orbit around the star.

To answer your question, we need to consider the relative sizes of the orbits. The object that travels in the largest orbit is the one that is farthest from the centre of mass. This means that the answer is: the extrasolar planet.

The star's orbit around the centre of mass is smaller than the planet's orbit because it has a much larger mass and therefore a stronger gravitational pull. However, both objects are in motion around the centre of mass, which is the balance point between them.

So, to sum up, the extrasolar planet travels in the largest orbit around the system's centre of mass. I hope this helps!


The reason for this is that the centre of mass is closer to the more massive object, which is typically the star. Therefore, the star's orbit around the centre of mass will be smaller than the orbit of the less massive extrasolar planet. As a result, the extrasolar planet will have a larger orbit in comparison to the star.

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Answer:

Hello!

I do not have all ten listed out, however I can show you how to find out. First things first understand what the numbers mean on the table of elements. The number at the top is the atomic number. This represents how many protons an element has. This is also how many neutrons it has, because there is always the same number of protons and neutrons. The number at the bottom is the atomic mass. This is how much the atom weighs. To find the first 10 look for the elements with atomic numbers 1-10. It should be easy. I’ll give you the first one for example.

Hydrogen is the element with a atomic number of 1. Its atoms contain

-1 proton

- 1 neutron

-1 electron (also note the amount of electrons is equal to the amount of protons and neutrons)

Hydrogens atomic mass is (1.00784 u)

Lastly the symbol for hydrogen is (H)

Hope this helps!!!

Answer:

if sams answer is yes that they can have a child who is a non-taster then your answer is yes

Explanation:

if both parents are heterozygotes, 25% of their children can be nontaster.

Answer:

this much I think 101.9716212978

Answer:

approximately 102kg

Explanation:

1 kg on the surface of the Earth weighs 9.80665 N

1000 N = 1000/9.80665 kg = 102 kg

giving me brainliest will make my day

If you see a displayed diver-down flag while boating, it is necessary to maintain a certain distance from the flag for safety reasons. The specific distance may vary depending on local regulations and circumstances, but it is generally recommended to stay at least 100 feet away from the flag.

A diver-down flag is used to indicate the presence of divers in the water. Its purpose is to alert boaters to the potential hazards and to ensure the safety of the divers. The exact distance you must stay away from the flag may be specified by local laws or regulations, so it is important to familiarize yourself with the rules of the area you are boating in.

In many places, a common guideline is to stay at least 100 feet away from the diver-down flag. This distance allows for a safe buffer zone to prevent any accidental collisions or disturbances to the divers. However, it's crucial to check and adhere to the specific regulations in your boating location, as they may vary and could require a different distance to be maintained. Prioritizing safety and respecting the presence of divers is essential to avoid any accidents or harm to both boaters and divers.

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The force of attraction between all masses in the universe; especially the attraction of the earth's mass for bodies near its surface.

Answer:

Gravity is the force that keeps everything on the ground instead of it floaating around!

Explanation:

Without gravity, you would be floating round in your house dodging floating objects.

Hope this brings you down to earth!

Have an amazing day!

PLEASE RATE AND MARK BRAINLIEST!! :)

Answer: 83.3 W

Explanation: I think, I’m not sure. If I’m wrong correct me ;)

(1) The time does pilot take the weight to hit the ground = 2.4 s

(2) The pilot travel before land = 400 m

Because fall time is proportional to fall height and acceleration due to gravity (g) is constant,

t₁ = t₂  

s₁ = initial distance

s₂ = final distance

t₁ = initial time

t₂ = final time

Hence, the time does it take the weight to hit the ground = 2.4 s

The initial distance (s₁) = 200 m, and the pilot does a run at the same height but twice the speed.

So, the  pilot travel before land:

s₂ = 2 x s₁

= 2 x 200 m

= 400 m

The question is incomplete, it should be:

There are competitions in which pilots fly small planes low over the ground and drop weights, trying to hit a target. A pilot flying low and slow drops a weight; it takes 2.4 s to hit the ground, during which it travels a horizontal distance of 200 m. Now the pilot does a run at the same height but twice the speed. How much time does it take the weight to hit the ground? How far does it travel before it lands?

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Answer:

\(V_y = 16.44\ m/s\)

\(V_y = 7.32\ m/s\)

Explanation:

Given

\(\theta = 24\)

\(Velocity\ (V) = 18m/s\)

Required

Determine the vertical and horizontal components

The vertical (Vy) and horizontal (Vx) components is calculated as thus:

\(V_x = Vcos\theta\)

\(V_y = Vsin\theta\)

Calculating Vertical Components:

\(V_y = Vsin\theta\)

\(V_y = 18 * sin24\)

\(V_y = 18 * 0.40673664307\)

\(V_y = 7.32125957526\)

\(V_y = 7.32\ m/s\) --- Approximated

Calculating Horizontal Components:

\(V_x = Vcos\theta\)

\(V_x = 18 * cos24\)

\(V_x = 18 * 0.91354545764\)

\(V_x = 16.4438182375\)

\(V_x = 16.44\ m/s\) --- Approximated

Answer:

Studies performed by the CPSC give reliability to the results of improved safety obtained by each soap company.

Explanation:

The CPSC perform case studies when other soap and detergent companies have already conducted research on the same products because of the studies performed by the CPSC gives reliability to the results of improved safety obtained via each soap company.

The third option is correct.

The chemicals are the artificially prepared or purified and a distinct compound or substance.

Given is the passage about the health risks of single-load liquid laundry packets. The packets are filled with concentrated, toxic chemicals. A 7-month-old child in Florida died from swallowing the soap accidently. Several soap and detergent companies are conducting studies to address these safety concerns. They want to reduce toxicity and to make the packets look less like candy. The U.S. Consumer Product Safety Commission (CPSC) is also performing case studies to build more safety into these products.

The reason for CPSC to perform case studies when other soap and detergent companies have already conducted research on the same products is the studies performed by the CPSC gives reliability to the results of improved safety obtained via each soap company.

Thus, the third option is correct.

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Answer:

What is 250 °C in °F?

482

Fahrenheit = (1.8 times Celsius) + 32 .

No matter WHAT Celsius temperature you start with, you put it into that formula in place of the word "Celsius", and the formula gives you the Fahrenheit temperature.

It works for ANY Celsius temperature. So now, you never have to ask this question again.  

The Nutrition Facts panel must include the grams of monounsaturated fat, grams of total fat, and total calories from saturated fat.

a. The total calories from trans fat are not required to be included in the Nutrition Facts panel. Trans fat is listed separately under "Total Fat" and does not have its own specific calorie value.

b. The grams of monounsaturated fat are required to be included in the Nutrition Facts panel. Monounsaturated fat is a type of fat that is beneficial for health, and its quantity is provided to help consumers make informed choices.

c. The grams of total fat are required to be included in the Nutrition Facts panel. Total fat represents the sum of all types of fats present in the food product.

d. The total calories from saturated fat are required to be included in the Nutrition Facts panel. Saturated fat is a type of fat that is associated with an increased risk of certain health conditions, and providing the calorie value helps consumers monitor their intake.

Therefore, the Nutrition Facts panel must include b. grams of monounsaturated fat, c. grams of total fat, and d. total calories from saturated fat.

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Answer:

1 lb. is 453.592 grams

Explanation:

1lb is 453.592 grams

Answer:

300 m/s

Explanation:

Answer:

True

Explanation:

I just took the test and got 100

Answer:

Explanation:

line graph

Answer:

To gradually increase blood flow to the body

A physical property refers to a characteristic of a substance that can be observed or measured without changing the substance's identity.

Physical properties are typically classified as either intensive or extensive.

Intensive physical properties, such as density, melting point, boiling point, and color, do not depend on the amount of substance present and are useful for identifying and characterizing materials.

Extensive physical properties, such as mass, volume, and size, depend on the amount of substance present and are useful for quantifying and comparing materials.

Physical properties can also be used to describe changes in a substance's state, such as from solid to liquid or from liquid to gas.

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Answer:

B

Explanation:

cold condenses and makes the balloon smaller

(8 and 2/3) millimeters per second.

That's about 0.02 mile per hour.

Answer:

-3.5

Explanation:

b/c the distance is moving in to two A And B A +B or S1 +S2 that is it

Answer:

The interpolated velocity value from the graph is -8.1 meters/second. The calculated value based on the average acceleration is -8.2 meters/second. This is very good agreement.

Explanation:

Answer:

it is c

Explanation: i just did it

The correct answer to this question is D) The field points in two directions at the same place. Electric field lines represent the direction of the electric field at a given point in space.

When two electric field lines cross each other, it means that at that point, the electric field has two different directions. This is only possible if there are two or more charges of different signs in the vicinity, as the electric field lines always point from positive charges to negative charges.

The presence of an electrical conductor or insulator is not relevant in this situation, as they do not affect the direction of the electric field lines. However, it is important to note that conductors can redistribute charges in a way that can affect the electric field, leading to differences in the distribution of electric field lines.

In summary, the presence of two crossing electric field lines implies the existence of at least two point charges of opposite signs. It is a fundamental concept in electrostatics and is used to explain a wide range of phenomena, including electric fields around charges and the behavior of electrical circuits.

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Answer: A. Red light is reflected

Explanation: