Help asap please thank you

Answer:

BECAUSE WALL IS SOLID .......

Answer:

Friction braking is the most commonly used braking method in modern vehicles. It involves the conversion of kinetic energy to thermal energy by applying friction to the moving parts of a system. The friction force resists motion and in turn generates heat, eventually bringing the velocity to zero.

Answer:

1)So, the mass(m) of the tv is 75kg and the scale(weight)=825 N therefore you devide the weight by the mass which is equal to 11m/s^2

2)First things first you need to know the gravitational force here on earth which is 9.8(approximately 10) I will sove for 9.8 and 10 so you can choose

the fish has a mass of 2.4kg and the gravity= 9.8 so the weight is equal to the mass*gravity= 23.52

now if you use 10 as the gravity= 2.4*10= 24

3) here the weight is 250N and gravity is 9.8(10) so we just devide the weight by the gravity= 250/9.8= 25.51

                         250/10= 25( if gravity is 10)

Answer:

Explanation:

12.since W=mg where m is mass and g which is accelaration due to gravity,

  g=825N/75kg

  g=11 m/s^2

13.W= 2.4kg * 9.81m/s^2

      =23.544kg m/s^2=23.544N

14.m=250N/9.81ms^-2

       =25.48kg

Answer:

the answer is A

Explanation:

because I just know

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

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, ...

Between the top of the first and the top of the second loop, the coaster has lost potential energy = mgh, where h = 22.2 - 15 = 7.2m

This energy would have converted to Kinetic. Write out an equation and the masses will cancel out. Does that hint help you to find the solution? If not, I will give you another hint.

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

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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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]

Calibration can be defined as the way an instrument is adjusted such that the measurement the instrument gives after calibration is precise and accurate.

One effective way to calibrate a thermometer is the use of ice water.

A thermometer can be defined as the instrument used to measure the temperature of a person or a substance.

A thermometer should be calibrated regularly in order to maintain a high level of precision and accuracy.

One of the effective ways to calibrate a thermometer is through the use of ice water.

The steps to calibrate a thermometer are given below:

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Answer:

10

Explanation:

yum lang po alam ko sana po tama yun

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.

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#SPJ2

Explanation:

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

Answer:

The answer is energy it can be carried from one place to another.

please mark this as brainliest

Answer:

energy

Explanation:

In a wave phenomenon, energy can move from one location to another, yet the particles of matter in the medium return to their fixed position. A wave transports its energy without transporting matter. Waves are seen to move through an ocean or lake; yet the water always returns to its rest position.

Answer: False

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

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:

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

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.

Answer:

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

Explanation:

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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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]

Answer:

Explanation:

Hope this helps :)  

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Answer:

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

Answer:

no hablo russian

Answer:

W = F*d

W = 4000*50

W = 200000J

W = 200KJ

Answer:

Displacement

Explanation:

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

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