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

Answer:

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

Explanation:

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:

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.

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[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.

Answer:

A: true

Explanation:

Answer:

W = F*d

W = 4000*50

W = 200000J

W = 200KJ

Explanation:

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

Answer:

B

Explanation:

Answer:

B

Explanation:

The correct answer is B: in the northwest.

Answer:

no hablo russian

Answer:

Explanation:

electroscope

Answer:

I think electroscope.

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.

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

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;

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Answer: 0°

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: 0°

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

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:

Answer:

Explanation:

Hope this helps :)  

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And have an amazing day <3

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!!

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

Answer:

more information? who?

Explanation:

Answer

both earthquakes and tsunamis have waves  

Explanation:

Tsunamis are caused by earthquakes, underwater land slides, volcanic eruptions, and land sloping into the ocean. An earthquake is rapid shaking of the earths surface. It's no wonder earthquakes cause mass destruction, because they occur when two plates collide. Also earthquakes occur more often than tsunamis do.

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.

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:

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#SPJ2

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

Answer:

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

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]

Answer:

carbon

Explanation:

Answer: False

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

Answer:

BECAUSE WALL IS SOLID .......

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, ...

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