You have a cylindrical balloonship with the mass of 25 000kg, how should I calculate the airfriction on it's speed?

Answers

Answer 1

Answer: That is some advanced aerodynamics you have there.

You'll need to know at least the dimensions of the whole ship, and
the coefficient of friction between air and whatever material the bag
is made of. I don't think the total mass is going to be too important.

Related Questions

A good baseball pitcher can throw a baseball toward home plate at 90 mi/h with a spin of 1950 rev/min. How many revolutions does the baseball make on its way to home plate? For simplicity, assume that the 60 ft path is a straight line.
Which of these statements is true? A. Some molecules may contain no atoms. B. Some elements found in nature exist as molecules. C. Some compounds include only one type of element. D. Some atoms are made of two or more different elements.
How fast must a 6 kg cat run to have kinetic energy of 150 j?
Momentum is distancemassforcetime times velocity.
A soccer ball is traveling at a velocity of 50 m/s. The kinetic energy of the ball is 500 J. What is the mass of the soccer ball?

Two 0.006 Kg bullets are fired with speeds of 20.0 m/s and 50.0 m/s respectively. What are their kinetic energies? Which bullet has more kinetic energy? What is the difference of their kinetic energies?

Answers

Answer:

a) Kinetic energies

K₁ = 1.2 J

K₂ = 7.5 J

b) The bullet that has the highest kinetic energy is the one with the highest speed , v = 50 m/s , K₂ = 7.5 J

c) K₂ -K₁ = 6.3 J

Explanation:

The kinetic energy (K) is that due to the movement of a body and is calculated as follows:

K = (1/2) m*v² (J)

Where :

m : the mass of the body ( kg)

v is the speed of the body (m/s)

Data

m₁ = m₂ = 0.006 Kg

v₁ = 20 m/s

v₂ = 50 m/s

a)Calculation of the kinetic energy

K₁ = (1/2) (m₁)*(v₁)²

K₁ = (1/2) (0.006)*(20)²

K₁ = 1.2 J

K₂= (1/2) (m₂)*(v₂)²

K₂ = (1/2) (0.006)*(50)²

K₂ = 7.5 J

b) K₂ ˃ K₁

The bullet that has the highest kinetic energy is the one with the highest speed , v = 50 m/s, K₂ = 7.5 J

c) Difference of their kinetic energies (K₂ -K₁)

K₂ -K₁ = 7.5 J - 1.2 J = 6,3 J

Your brother is insisting that you'll never hear a sound produced behind a barrier wall at the end of your yard. You notice that the door within the wall is open and quickly explain to him that the sound will be able to reach you due to A. Reverberation
B. Diffusion
C. Focusing
D. Diffraction

Answers

Correct answer choice is :

D) Diffraction

Explanation:

Diffraction relates to several aspects that happen when a wave meets a barrier or a slit. It is described as the bending of waves around the edges of a barrier or gap into the area of the geometrical darkness of the barrier. Diffraction is created by one wave of light being turned by a diffracting thing. This shift will make the wave to have a collision with itself. The powerful examples of diffraction happen in waves where the wavelength is close to the mass of the object creating diffraction.

The right answer for the question that is being asked and shown above is that: "C. Focusing " Your brother is insisting that you'll never hear a sound produced behind a barrier wall at the end of your yard. You notice that the door within the wall is open and quickly explain to him that the sound will be able to reach you due to C. Focusing

Billy drops a water ballon from the roof of his house. Since the balloon began with an original velocity of zero, how far above the ground was the balloon dropped if it took 2.5 seconds to hit the ground?

Answers

The distance between the roof and the ground where the balloon water was dropped is 30.65 meters. This is computed using the free fall formula which state that the height or distance is equal to the time it takes object to hit the ground times the constant gravity. In this case, 2.5 seconds times 9.807 meter per square second will then give us the 30.65 meter.

the answer is 30.6 good luck!

An electric dryer consumes 6.0 × 10^6 joules ofelectrical energy when operating at 220 volts for
1.8 × 103 seconds. During operation, the dryer
draws a current of
(1) 10. A (3) 9.0 × 102 A
(2) 15 A (4) 3.3 × 103 A

Answers

Answer : The dryer draws a current of 15 A.

Explanation :

Given that,

Energy consumed, $E=6* 10^6\ J$

Voltage, V = 220 Volts

Time, $t=1.8* 10^3\ s$

Power dissipated is given by :

$P=(E)/(t)$

Also, P = VI

So, $VI=(E)/(t)$

$I=(E)/(Vt)$

$I=(6* 10^6\ J)/(220\ V* 1.8* 10^3\ s)$

$I=15\ A$

So, the correct option is (2)

Hence, this is the required solution.

The dryer draws a current of 15 A.Electric currents is the ratio of charge per unit of time.

What is electric current?

The pace at which electrons travel through a conductor is known as electric current. The ampere is the SI unit for electric current.

Electrons are tiny particles that reside within a substance's molecular structure.

The given data in the problem is;

V is the voltage= 220 volts

E is the electric energy= 6.0 × 10⁶

t is the time =1.8 × 10³ seconds.

I is the electric current=?

The electric current is found as;

$\rm P= (E)/(t) \n\n\ P= VI \n\n VI = (E)/(t) \n\n I= (E)/(VT) \n\n I= (6 * 101^6 )/(220 * 1.8 * 10^3) \n\n \rm I= 15 A$

Hence the dryer draws a current of 15 A.Electric currents is the ratio of charge per unit of time.

To learn more about the electric current refer to the link;

brainly.com/question/7643273

What is the speed of a boat that travels 20 miles in 60 minutes? Please answer in miles per hour.Formula : speed = distance

time

Answers

d = r*t r = d/t = 20/45 mi/min
20/45 mi/min * 60 min/hr = 1200/45 mi/hr
= 26.667 mi/hr
Hope i helped :)

As you reminded us at the end of the question:

   Speed = (distance) / (time)

   = (20 miles) / (60 minutes)

   = (1/3) mile/minute

To convert to the units you asked for . . .

   (1/3 mile/minute) · (60 minutes/hour)

   = (1/3 · 60) (mile · minute) / (minute · hour)

   = 20 mile/hour .

Einstein calculated that ripples of gravity travel at exactly the speed of _____

Answers

Answer:

299,792,458 m/s = speed of light

Explanation:

Other Questions

A 2.5 kg mass starts from rest at point A and moves along the x-axis subject to the potential energy shine in the figure below (a) Determine the speed (in m/s) of the mass at point B,C,D (For each answer, enter a number)(b) Determine the turning point of the mass. (Select all that apply.)Point APoint BPoint CPoint DPoint E

The source of the centripetal force required for a car to round a curve is _____.tensiongravityfrictionweight

The atomic mass of an element whose atoms consist of seven protons, eight neutrons, and seven electrons is _____?a. 7 b. 14 c. 15 d. 22

Animals in cold climates often depend on two layers of insulation: a layer of body fat [of thermal conductivity 0.200W/(m⋅K) ] surrounded by a layer of air trapped inside fur or down. We can model a black bear (Ursus americanus) as a sphere 1.60m in diameter having a layer of fat 3.90cm thick. (Actually, the thickness varies with the season, but we are interested in hibernation, when the fat layer is thickest.) In studies of bear hibernation, it was found that the outer surface layer of the fur is at 2.80∘C during hibernation, while the inner surface of the fat layer is at 30.9∘C a) What should the temperature at the fat-inner fur boundary be so that the bear loses heat at a rate of 51.4W ? b) How thick should the air layer (contained within the fur) be so that the bear loses heat at a rate of 51.4W ?