A basketball player does 2.43 x 105 J of work during her time in the game, and evaporates 0,1 '10 kg of water. Assuming a latent heat of 2.26 x 106 Jlkg for the perspiration (same as for water), determine (a) the change in the player's internal energy, and (b) the number of nutritional calories the player has converted to work and heat.

Answer:

leap year

Explanation:

The ranking is based on the tilt of the Earth's axis and its orbit around the Sun. The figure at 40°N in June receives the most daylight because it is located at a high latitude during the summer solstice in the Northern Hemisphere. The Earth's axis tilts towards the Sun, resulting in longer days and shorter nights. The figure at 40°S in December receives a moderate amount of daylight as it is located at a lower latitude during the summer solstice in the Southern Hemisphere.

The figure at 40°N in December experiences less daylight because it is located at a high latitude during the winter solstice in the Northern Hemisphere, with shorter days and longer nights. Lastly, the figure at 40°S in June receives the least amount of daylight as it is located at a lower latitude during the winter solstice in the Southern Hemisphere, where the days are shortest and the nights are longest. Based on the information given, the ranking of figures based on the amount of daylight they experience in a 24-hour period, from most to least.

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The distance travelled by the vehicle around the circular track is 1,052.4 m.

The distance travelled by the vehicle in one complete cycle is calculated by using the following equation as show below.

d = 2πr

d = πd

Where;

In one complete cycle, the  vehicle will travel the circular track only once.

d = π(335 m)

d = 1,052.4 m

Thus, the distance travelled by the vehicle around the circular track is a function of the diameter of the circular track.

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The complete question is below:

A vehicle, starting from rest, accelerates on a circular track with a 335m diameter. What is the distance travelled by the vehicle when it makes one complete cycle?

The magnitude of the force exerted on this object is 1.2 Newton.

Given the following data:

In Science, the impulse that is experienced by an object is always equal to the change in momentum of the object, due to the force acting on an object.

Mathematically, impulse is given by this formula:

\(Impulse = change\;in\;momentum\\\\Force \times time = m \Delta V\)

Substituting the given parameters into the formula, we have:

\(Force \times 10=12\\\\Force =\frac{12}{10}\)

Force = 1.2 Newton.

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Answer:

Kinetic energy is the energy of motion, observable as the movement of an object or subatomic particle. Every moving object and particle have kinetic energy. A person walking, a soaring baseball, a crumb falling from a table and a charged particle in an electric field are all examples of kinetic energy at work

Answer:

speed =distance /time

speed =4.82/0.00360

speed =1338.8m/s

Answer:

\(a=20\ m/s^2\)

Explanation:

Given that,

The mass of an object, m = 3 kg

The radius of a circle, r = 0.2 m

The speed of the object, v = 2 m/s

We need to find the centripetal acceleration. Its formula is given by :

\(a=\dfrac{v^2}{r}\\\\a=\dfrac{(2)^2}{0.2}\\\\a=20\ m/s^2\)

So, the centripetal acceleration is \(20\ m/s^2\).

The strings have harmonics in whole number multiples of the fundamental.

Similarly, the open-pipe resonators also have harmonics in whole number multiples of the fundamentals.

The harmonics of the closed-pipe resonators does have fullfil the given condition for the value of harmonics.

Hence, option 4 is the correct answer.

The angular acceleration he must achieve to come to rest in 0.7s is -2.94 rad/s²

From the question,

The initial angular velocity of the gymnast = 2.06 rad/s

Also, he wishes to stop his angular motion in 0.7s,

That is, his final angular velocity would be 0 rad/s

To determine what angular acceleration he must achieve in this time to come to rest,

From one of the equations of kinematics for angular motion, we have that

\(\omega = \omega_{o} + \alpha t\)

Where \(\omega\) is the final angular velocity

\(\omega_{o}\) is the initial angular velocity

\(\alpha\) is the angular acceleration

and \(t\) is time

From the question

\(\omega = 0 \ rad/s\)

\(\omega_{o} = 2.06 \ rad/s\)

\(t = 0.7\ s\)

Putting these values into the equation, we get

\(0= 2.06 + \alpha \times 0.7\)

\(0 = 2.06 + 0.7\alpha\)

Then,

\(0.7\alpha = -2.06\)

∴ \(\alpha = \frac{-2.06}{0.7}\)

\(\alpha = -2.94 \ rad/s^{2}\)

Hence, the angular acceleration he must achieve to come to rest in 0.7s is -2.94 rad/s²

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Answer:

Two major muscles must work together in an agonist and antagonist form to be able to move an arm.

Explanation:

Determine the magnitude of B-A is 53.68

1.4

Magnitude is a term used to describe size or distance. We can relate the magnitude of the movement to the size and movement speed of the object. The magnitude of a thing or an amount is its size. A car moves at a faster pace than a motorcycle, just in terms of speed.

Magnitude is the relative size of an object (mathematics). The mathematical term for a vector's length or size is the norm. By using the symbol |v|, the magnitude of a vector formula can be utilized to determine the length of a given vector (let's say v). This amount is essentially the distance between the vector's beginning point and ending point.

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Answer:

1,323 days left

Explanation:

147 x 10 = 1,470

1470 - 147 = 1,323

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Answer:

66.75 V

Explanation:

A capacitor is a device that stores electrical energy in an electric field. It is made up of two conductor plates separated by a dielectric. It stores electrical charges which then produces a potential difference between the plates.

The equivalent capacitance for capacitors in series is given as:

\(\frac{1}{C_{eq}}=\frac{1}{C_1} +\frac{1}{C_2}+\frac{1}{C_3} \\ \\\frac{1}{C_{eq}}=\frac{1}{10.4} +\frac{1}{20}+\frac{1}{29.5}\\ \\C_{eq}=5.55\ \mu F\)

\(The\ total\ charge\ stored(Q)\ is:\\\\Q=C_{eq}V\\\\Q=5.55*10^{-6}F*125\ V=694 \mu C\)

The potential difference on each capacitor is:

\(V_1=\frac{Q}{C_1}=\frac{694\mu C}{10.4\mu F} =66.75\ V\\\\V_2=\frac{Q}{C_2}=\frac{694\mu C}{20\mu F} =34.71\ V\\\\V_3=\frac{Q}{C_3}=\frac{694\mu C}{29.5\mu F} =23.53\ V\)

The maximum potential difference is 66.75 V across the small capacitor

Answer:

d first cone first serve

Answer:

The first law states that every planet describes an elliptical path about the sun as a single focus.

The second law states that The line joining the planet to the sun sweeps out equal areas in equal time intervals.

The third law states that The squares of the period of revolution is proportional to the cubes of the mean distance between the planet and the sun

Answer:

C

Explanation:

edge 2020... Using elimination it's the only one that makes sense.

The statement third "an increase in the distance between the objects causes a greater change in the gravitational force than the same increase in mass" is correct.

The gravitational force is a force that attracts all mass-bearing objects. The gravitational force is referred to as attractive because it always strives to pull masses together rather than pushing them apart.

As we know, the gravitational force is given by:

\(\rm F = \dfrac{Gm_1m_2}{r^2}\)

Where, G is the gravitational constant.

m1 and m2 are masses.

r is the distance between the masses.

From the data given in the table, shows that:

The gravitational force is indirectly proportional to the square of the distance.

Thus, the statement third "an increase in the distance between the objects causes a greater change in the gravitational force than the same increase in mass" is correct.

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Answer:

I think D?

Explanation:

a. the landing ramp should be placed at 276.298 ft horizontally from the launch point.

(b) the angle of the landing ramp is 30°.

(a)

Launch speed = 55.0 mph * (1.467 ft/s)

= 80.685 ft/s

Horizontal distance = Launch speed * Time of flight

Vertical velocity = Launch speed * sin(30.0°)

Time to reach maximum height = Vertical velocity / g

Vertical distance = (1/2) *g * t²

and Time = √(2 * Vertical distance / g)

Total time of flight = 2 * Time to reach maximum height + Time for descent

Horizontal distance = Launch speed * Total time of flight

The Vertical velocity = 80.685 ft/s * sin(30.0°)

= 40.3425 ft/s

Time to reach maximum height = 40.3425 ft/s / 32.2 ft/s²

Time to reach maximum height  = 1.253 s

Time of descent = √(2 * 25.0 ft / 32.2 ft/s²)

Time of descent  = 0.913 s

Total time of flight = 2 * 1.253 s + 0.913 s

Total time of flight = 3.419 s

In conclusion, the horizontal distance = 80.685 ft/s * 3.419 s

horizontal distance = 276.298 ft

b.

the angle of the landing ramp is  30.0 be the same as the launch angle.

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Answer:

greater than.

Explanation:

The amount of work done by the gas is proportional to the pressure and the change in volume, as well as the efficiency of the process. If the pressure and volume are known, the work done by the gas can be calculated by multiplying these values by the efficiency of the process.

The amount of work done by a gas when it expands is proportional to the change in volume, pressure, and temperature. According to the first law of thermodynamics, the energy of a closed system is conserved, so the work done by the expanding gas is equal to the energy transferred from the gas to the environment in the form of work. Therefore, the work done by the gas is equal to the change in energy of the system. Assume that the process is 10% efficient. Then, only 10% of the energy available to the system is converted into work. This means that the remaining 90% of the energy is lost to the environment in the form of heat. As a result, the amount of work done by the gas expanding into the atmosphere is given by the formula

W = E x η, where W is the work done by the gas, E is the energy available to the system, and η is the efficiency of the process. The energy available to the system is determined by the difference between the internal energy of the gas before and after the expansion. The internal energy of a gas is determined by its temperature, pressure, and volume.

Assuming that the temperature and pressure are constant, the change in internal energy is proportional to the change in volume. Therefore, the energy available to the system is equal to the product of the pressure and the change in volume: E = P x ΔV, where P is the pressure of the gas and ΔV is the change in volume during the expansion. Substituting this equation into the formula for work, we get W = P x ΔV x η.

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Answer:

-12.1

Explanation:

i’m almost sure this is it, i’m checking my old answers

if not let me know and i’ll give you some more answers

Answer:

88 Watts

Explanation:

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

Resistance (R) = 0.22 Ohm

Current (I) = 20 A

Power (P) =.?

P = IV....... (1)

From ohm's law,

V = IR ........ (2)

Substitute the value of V in equation (2) into equation (1)

P = IV

V = IR

P = I(IR)

P = I²R

With the above formula (i.e P = I²R), we can obtain the power lost to heat as follow:

Resistance (R) = 0.22 Ohm

Current (I) = 20 A

Power (P) =.?

P = I²R

P = 20² × 0.22

P = 400 × 0.22

P = 88 Watts

Thus, the power lost to heat is 88 Watts.

285.3 days

Explanation:

The centripetal force \(F_c\) experienced by the planet is the same as the gravitational force \(F_G\) so we can write

\(F_c = F_G\)

or

\(m\dfrac{v^2}{R} = G\dfrac{mM}{R^2}\)

where M is the mass of the star and R is the orbital radius around the star. We know that

\(v = \dfrac{C}{T} = \dfrac{2\pi R}{T}\)

where C is the orbital circumference and T is orbital period. We can then write

\(\dfrac{4\pi^2R}{T^2} = G\dfrac{M}{R^2}\)

Isolating \(T^2\), we get

\(T^2 = \dfrac{4\pi^2R^3}{GM}\)

Taking the square root of the expression above, we get

\(T = 2\pi \sqrt{\dfrac{R^3}{GM}}\)

which turns out to be \(T = 2.47×10^7\:\text{s}\). We can convert this into earth days as

\(T = 2.47×10^7\:\text{s}×\dfrac{1\:\text{hr}}{3600\:\text{s}}×\dfrac{1\:\text{day}}{24\:\text{hr}}\)

\(\:\:\:\:\:= 285.3\:\text{days}\)

My family car has a tank size of 19 gallons, and it is fueled twice a week at about 8 gallons each time. It's yearly carbon emission is about 16,254 pounds per year.

To estimate the weekly gasoline consumption, we multiply the number of refills (2) by the amount of gasoline added each time (8 gallons):

Therefore weekly gasoline consumption 2 refills/week at 8 gallons per refill = 16 gallons/week

c. The emission factor for carbon dioxide is approximately 19.55 pounds per gallon.

Therefore, to obtain the weekly emissions,

Multiply the weekly gasoline consumption 16 gallons by the emission factor of carbon dioxide 19.55 pounds per gallon.

Weekly carbon dioxide emissions is 16 gallons/week * 19.55 pounds/gallon

= 312.8 pounds/week

Monthly emissions: Multiply the weekly emissions 312.8 pounds by the number of weeks in a month approximately 4.35) to get the monthly carbon dioxide emissions

Monthly carbon dioxide emissions is 312.8 pounds per week * 4.35 weeks per month

≈ 1,359 pounds/month

Yearly emissions: Multiply the weekly emissions 312.8 pounds by the number of weeks in a year approximately 52 to get the yearly carbon dioxide emissions.

Yearly carbon dioxide emissions is 312.8 pounds per week * 52 weeks per year

≈ 16,254 pounds/year

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Answer:

0.75 m³/s

Explanation:

Applying,

Q = vA.................... Equation 1

Where Q = flow rate of the water, v = velocity of the water, A = area of the pipe.

From the question,

Given: v = 2.5 m/s, A = 0.3 m²

Substitute these values into equation 1

Q = 2.5(0.3)

Q = 0.75 m³/s

Hence the flow rate of water in the pipe is 0.75 m³/s

As thermal energy is added to a sample of water, the potential energy of its molecules increases, and then the kinetic energy of its molecules increases.

The sections of the heating curve illustrate this process  is B followed by D

Therefore option A is correct.

Thermal energy (also called heat energy) is described as being produced when a rise in temperature causes atoms and molecules to move faster and collide with each other.

some factors of thermal energy include:

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The price of the limited edition shows has been affected by the limited availability or scarcity.

The basic economic principle of supply and demand states that when the supply of a product is limited and the demand for it is high, the price of the product will increase.

Scarcity can affect price in a number of ways. When a product or resource is scarce, there is increased demand for it, which can drive up its price. If a product is in short supply, sellers may be able to charge more for it because buyers are willing to pay a premium to obtain it.

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The total distance is 105 kilometers and the total displacement is 15 kilometers east. Option C

To calculate the total distance, we add the distances traveled in each leg of the journey: 60 kilometers (from A to B) + 45 kilometers (from B back to A) = 105 kilometers.

However, displacement refers to the change in position of an object in a straight line from its starting point to its ending point. In this case, since the boat starts and ends at the same point (A), the total displacement is zero.

Hence The total distance is 105 kilometers and the total displacement is 15 kilometers east.

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Answer: To answer this question, we will need the following equation: SPEED = DISTANCE/TIME (A multiplication and division triangle will be shown)i) The speed of the car is calculated by doing 100 metres/ 20 seconds which gives us 5 metres per second. ii) Rearranging the equation earlier, we can make the distance the subject of the equation so that we get SPEED x TIME = DISTANCE. We worked out the speed and the time was given as 1 minute 40 seconds but we cannot plug in the numbers yet as the time has to be converted to units of seconds (because our speed is in meters per second). 1 minute 40 seconds = 60 seconds + 40 seconds = 100 secondsWe then plug in the numbers to get the distance travelled = 5 metres per second x 100 seconds = 500 metres.

Explanation:

Answer:

2.73 kJ

Explanation:

yan po I hope it's help po pa brainly na lng po