un paracadutista di massa 70kg scende per 100m a velocità costante.
quanta energia dissipa la resistenza del mezzo?

Answers

Answer 1

Answer:

hakdbkdjsbsjzkkahzjxbdkdj


Related Questions

heeelllllpppp plleeeaaassseee

Answers

[tex]\underbrace{\sf{Elementary~ charge} }[/tex]

Explanation:

We call the magnitude of the charge of an electron as ELEMENTARY CHARGE.

HELP!!!! ASAP!! Two ballons rubbed on the same material are Brought clos3 to each other.what was likely to be observed? A. they burst B .attract C.repel D. no change​

Answers

Answer:

B

Explanation:

What does Newton's second law describe?
A. How inertia affects the motion of an object
B. The relationship between force, mass, and acceleration
C. Action-reaction pairs
D. How friction and the normal force are related

Answers

B. Newton's second law says that “when a constant force acts on a massive body, it causes it to accelerate, i.e., to change its velocity, at a constant rate.”

Which object is in the sample of chemical change?

* Digesting a salad

* Mixing a salad dressing

* Dicing an onion

* Preparing a salad

Can someone answer this quickly, sorry if it’s rushed. ~Ty

Answers

Answer:

Digesting a salad

Explanation:

All the other ones are physical changes because you're changing its form but not its chemical identity and not changing the substance. Digesting a salad is a chemical change because you're both changing its form AND its chemical identity

Digesting a salad is the answer, because when you mix a salad dressing the chemicals still remain , when you dice a onion it’s a physical change , when you prepare a salad everything chemically is the same but with digesting it chemically it changes while the enzymes break down your food please mark me brainliest


HELP Where would you predict the highest atmospheric pressure?
A. In the southwest
B.In the northwest
C. In the southeast
D. In the northeast

Answers

Answer:

B

Explanation:

The correct answer is B: in the northwest.

calculate the volume of sphere with radius 7 cm​

Answers

Explanation:

the formula is:

[tex](4\pi \times r {}^{3} ) \div 3 [/tex]

where r is the radius

so

(4π × 7³) ÷ 3 =

(4π × 343) ÷ 3 =

[tex] \frac{1372\pi}{3} [/tex]

Answer:

V=4 /3πr3

=4/ 3·π·73

≈1436.75504cm³

Explanation:

least three different types of energy

Answers

Answer:

Kinetic, Potential, and Chemical energy

Explanation:

If you want to know the six basic ones they are, chemical, electrical, radiant, mechanical, thermal and nuclear energy. Hope this helps!

Answer:

If talking about forms of energy, the answer would be:

Kinetic, potential, and chemical energy

If asking for types, the answer could be:

Nuclear, Electrical, and Thermal

When does he reach the stick?

Answers

Answer:

more information? who?

Explanation:

. Choose one of the compounds from numbers of atoms in your formula .
methylene carbene
Sodium carbide
Diatomic carbon
Hydrogen gas
Acetylene
Tricarbon
diamond​

Answers

Answer:

carbon

Explanation:

Can someone help me with this? (The answer marked in red text is a incorrect answer)

Answers

Answer:

the answer is A

Explanation:

because I just know

answer??????

pls help


--------------

Answers

Answer:

Explanation:

electroscope

Answer:

I think electroscope.

You kick a ball with a speed of 18 m/s at an angle of 32°. How far away does the ball land

Answers

Answer:

d = V^2/g*sin(32*2) = 18^2/9.8*0.90 = 29.72 m

Explanation:

nakuha ko den sa brainly :,) so di sakin tong sagot na toh


Could someone please help me

Answers

Answer:

For the first one I Would just draw a triangle type shape going out towards the screen like light is being shined upon it. And the next question I would say the answer is yes.

Explanation:

Hope this helps :)  

Pls make brainliest :3  

And have an amazing day <3

Which list correctly orders effort (E), fulcrum (F), and load (L) for each lever class? (1 point)
class 1 = F, E, L (or L, E, F)
o class 2 = L, F, E (or E, F, L)
class 3 = F, L, E (or E, L, F)
class 1 = F, L, E (or E, L, F)
o class 2 = F, E L (or L, E, F)
class 3 = L, F, E (or E, F, L)
class 1 = L, F, E (or E, F, L)
o class 2 = F, L, E (or E, L, F)
class 3 = F, E, L (or L, E, F).
class 1 = F. E, L (or L, E, F)
o class 2 = F, L, E (or E, L, F)
class 3 = L. F. E (or E, F. L)

Answers

The list that correctly orders effort (E), fulcrum(F) and load (L) for each lever class is

class 1 = L, F, E (or E, F, L) class 2 = F, L, E (or E, L, F) class 3 = F, E, L (or L, E, F).

Machine are instruments that make work easier, faster, and convenient to do,

The lever is an example of the machine and we have 3 classes of lever depending on the position of the Load, Effort, and Fulcrum.

Three types of lever are;

First-class lever - The fulcrum (F) is between the Load and the effortSecond class lever: The load (L)is between the effort (E) and the fulcrum(F).Third class lever: The effort (E) is between the load (L) and the fulcrum (F)

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Jus answer pls I’m done with physics

Answers

5. 35 - (-20) = 55

6. [tex]v_{av}=\frac{\Delta s}{\Delta t}=\frac{20-(-20)}{6-0} =\frac{40}{6} =6.67[/tex]

7. D and G

8. A, C, and E

9.

At t = 19,

[tex]s=\frac{s_{final}-s_{initial}}{t_{final}-t_{initial}}(t_1-t_{initial})+s_{initial}=\frac{40-(-20)}{23-18}(19-18)-20=12-20= -8[/tex]

At t = 27,

[tex]s=\frac{s_{final}-s_{initial}}{t_{final}-t_{initial}}(t_1-t_{initial})+s_{initial}=\frac{0-40}{29-26}(27-26)+40=\frac{-40}{3}+40=26.67[/tex]

Therefore, displacement between t = 19 and t = 27 is:

26.67 - (-8) = 34.67

10. [tex]v=\frac{\Delta s}{\Delta t}=\frac{0-40}{29-26}=-13.33[/tex]

11. -20

12. [tex]v=\frac{\Delta s}{\Delta t}=\frac{20-(-20)}{6-0}=\frac{40}{6}=6.67[/tex]

what form of energy is released by radioactive particles during a nuclear reaction.​

Answers

The energy of nuclear fission is released as kinetic energy of the fission products and fragments, and as electromagnetic radiation in the form of gamma rays; in a nuclear reactor, the energy is converted to heat as the particles and gamma rays collide with the atoms that make up the reactor and its working fluid, ...

how long does it take to charge a 64-kwh battery from 0 to full using a level 1, 120v charger?

Answers

The time required to charge the 64 kwh battery from 0 to full is 45.7 hours.

A level 1 120 V charger supplies a power of 1.4 kW at 20 A.

Since we need to charge a 64 kwh battery with a level 1 120 V charger, the total energy required by the battery is E = 64 kwh.

Since the power rating from the charger is P = 1.4 kW, we know that

energy, E = power, P × time

So, time = energy/power

So, the time required to charge the 64 kwh battery from 0 to full is

time = 64 kwh/1.4 kW

= 45.71 hours

45.7 hours

So, the time required to charge the 64 kwh battery from 0 to full is 45.7 hours.

Learn more about time of charge here:

https://brainly.com/question/13671152

No one has actually seen any other layers beneath the surface of the Earth.

A: True
B: False

Answers

Answer:

A: true

Explanation:

the area under a velocity-versus-time graph of an object is

Answers

Answer:

Displacement

Explanation:

The area under a velocity-time graph is the displacement. Velocity can be negative if an object is moving backwards.

Sana makatulong!!

How do the force factors compare to the products of the masses?​

Answers

Answer:

The force is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.

If the force squeezing two surfaces together is decreased, the force of dry sliding friction between the two surfaces will most likely: a. increase b. decrease c. stay about the same ​

Answers

If the force squeezing two surfaces together is decreased, the force of dry sliding friction between the two surfaces will most likely decrease.

therefore your answer is B)decrease

Hope this helps you- have a good day bro cya)

The force of dry sliding friction between the two surfaces will most likely decreases.

What is force?

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

If the force squeezing two surfaces together is decreased, the force of dry sliding friction between the two surfaces will most likely decrease.

The force of dry sliding friction between the two surfaces will most likely decreases.

To learn more about force refer to the link:

brainly.com/question/13191643

#SPJ2

true or false
your mass would be the same on the moon as it is on the earth??
I need helppp

Answers

Answer: False

Explanation: The Earth has more gravitational pull than the moon.

Un alambre de 2m de longitud soporta una carga de 5400 N. El diámetro de la sección transversal es de 2 mm y el módulo de Young es de 4.2x1010 N/m2. Determine el alargamiento del alambre.

Answers

Hey there, hope you’re having a positive day. Can you try translate this into English please, unfortunately I do not understand your question as I don’t understand your language. No hate towards you happy Thanksgiving

Help me to solve it . It’s urgent

Answers

Answer:

Explanation:

Step 1: Squaring the given equation and simplifying it

Let θ be the angle between a and b.

Given: a+b=c

Squaring on both sides:

... (a+b) . (a+b) = c.c

> |a|² + |b|² + 2(a.b) = |c|²

> |a|² + |b|² + 2|a| |b| cos 0 = |c|²

a.b = |a| |b| cos 0]

We are also given;

|a+|b| = |c|

Squaring above equation

> |a|² + |b|² + 2|a| |b| = |c|²

Step 2: Comparing the equations:

Comparing eq( insert: small n)(1) and (2)

We get, cos 0 = 1

> 0 = 0°

Final answer:

[Reminders: every letters in here has an arrow above on it]

helicopter flies an average velocity of 70 m/s2 for 10.0 seconds. What ios ther magnitude of the helicopter's displacement? answer should have 3 significant figures

Answers

The uniform movement allows finding the results for the helicopter displacement during the 10 s is: 700 m

Kinematics studies the motion of bodies, finding relationships between the position, velocity and acceleration of the body, in the special case that the acceleration is zero, it is called uniform motion and is described by the equation

          [tex]v = \frac{\Delta s}{t}[/tex]

Where v is the average velocity, Ds is the displacement and t is the time

          Δs = v t

They indicate that the average speed is 70 m / s and the travel time is t=10.0s

Let's calculate

          Δs = 70 10.0

          Δs = 700 m / s

In conclusion using the uniform movement we can find the results for the helicopter displacement is: 700 m

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The magnitude of the helicopter's displacement is 700 meters.

Given the following data:

Velocity = 70 m/sTime = 10 seconds.

To find the magnitude of the helicopter's displacement:

Velocity can be defined as the rate of change in displacement (distance) with time.

Also, velocity is a vector quantity and as a result of this, it has both magnitude and direction.

Mathematically, velocity is given by the formula;

[tex]Velocity = \frac{displacement}{time}[/tex]

Making displacement the subject of formula, we have:

[tex]Displacement = velocity[/tex] × [tex]time[/tex]

[tex]Displacement = 70[/tex] × [tex]10[/tex]

Displacement = 700 meters.

Therefore, the magnitude of the helicopter's displacement is 700 meters.

Read more: https://brainly.com/question/17742679

Explain why a person's hand will not go through a wall when the person pushes on it

Answers

Answer:

BECAUSE WALL IS SOLID .......

The precision of a balance is ±0.02 g. The accepted value for a measurement is 26.86 g. Which measurement is in the accepted range?

Answers

[tex]\sf{ [26.84, 26.88]  }[/tex]

Explanation:

The precision of a balance is ±0.02 g.

The accepted value for a measurement is 26.86 g.

The accepted range is:

=[26.86-0.02, 26.86+0.02]

= [26.84, 26.88]  

when the driver of a car applies the brakes a force of 4000N brings the car to a stop over a distance of 50m.calculate the work done by the braking force.​

Answers

Answer:

W = F*d

W = 4000*50

W = 200000J

W = 200KJ

URGENT PLEASE HELP

A ball is thrown upward from the top of a 22.0 m tall building. If the ball's initial speed is 11.0 m/s and travels to a height of 6.2 m, with what final velocity does the ball hit the ground?​

Answers

Answer:

It is launched with a speed of 11 m/s.

Explanation:

составьте сложный план к тексту казахстан принимает азиаду

Answers

Answer:

no hablo russian

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