Get some points uwu

What part of the telescope focuses the light
​

Answer:

Aim: To investigate which material of pot will cook food quicker.

Hypothesis: The (aluminum/enamel) pots will cook the food quicker than the (aluminum/enamel) pots.

Apparatus:

- Aluminum pots

- Enamel pots

- Stove top

Variables:

Independent variable (What will be changed) - Material of pot

Dependent variable (What's being measured) - Time taken for food to cook

Controlled variables (What's staying the same) - Size of pot, type of food being cooked, quantity of food being cooked, stove top

Method:

Results: (I don't have results because i never conducted this experiment)

Conclusion: This experiment showed that (aluminum/enamel) pots cooked the food quicker than (aluminum/enamel pots). These results (supported/rejected) my hypothesis.

Evaluation: (Never did the experiment, so there's nothing to evaluate)

Explanation:

I hope this helps :)

Answer:

kg•m^2/s^3

Explanation:

Here, we want to get the valid unit for power

Mathematically, power is time rate of doing work

Work is the product of force and distance

Unit for force is;

kg•ms^-2

work is;

Kg•ms^-2 • s

= kg•m^2•s^-2

Divide through by the s for time;

we have ;

kg•m^2•s^-2/s

kg•m^2•s^-3

And that is;

kg•m^2/s^3

Explanation:

NH3 is the correct answer

please give brainliest and helpful

Answer: v = 0.6 m/s

Explanation: Momentum Conservation Principle states that for a collision between two objects in an isolated system, the total momentum of the objects before the collision is equal to the total momentum of the objects after the collision.

Momentum is calculated as Q = m.v

For the piñata problem:

[tex]Q_{i}=Q_{f}[/tex]

[tex]m_{p}v_{p}_{i}+m_{s}v_{s}_{i}=m_{p}v_{p}_{f}+m_{s}v_{s}_{f}[/tex]

Before the collision, the piñata is not moving, so [tex]v_{p}_{i}=0[/tex].

After the collision, the stick stops, so [tex]v_{s}_{f}=0[/tex].

Rearraging, we have:

[tex]m_{s}v_{s}_{i}=m_{p}v_{p}_{f}[/tex]

[tex]v_{p}_{f}=\frac{m_{s}v_{s}_{i}}{m_{p}}[/tex]

Substituting:

[tex]v_{p}_{f}=\frac{(0.54)(4.8)}{(4.4)}[/tex]

[tex]v_{p}_{f}=[/tex] 0.6

Immediately after being cracked by the stick, the piñata has a swing speed of 0.6 m/s.

Answer:

A compass can detect a magnetic field and show its direction. Iron filings can show the shape of a magnetic field. A gaussmeter can detect a field and indicate its strength.

Explanation:

Answer:

closed

Explanation:

sorry if I'm wrong

Answer:

C. 0.50 m

Explanation:

mark me as brainliest

The amplitude of the vibration with the given equation, y = (0.50) cos (π/2 ×t) is 0.50 m. Thus, option C is correct.

Simple Harmonic motion is defined as the periodic motion of the body resulting from the dynamic equilibrium. It is defined as the motion in which the restoring force is directly proportional to the displacement of the body.

Simple Harmonic Motion is defined as the repetitive back-and-forth motion of the central displacement. The maximum displacement of one side is equal to the maximum displacement of the other side.

The simple harmonic motion. F ∝ -x or a ∝ -x, where F is force and a is the acceleration of the body, and x is the displacement. The maximum displacement of the body is called the amplitude of the motion.

The energy is purely kinetic at its mean positions whereas the energy is purely potential at its extreme ends. The harmonic motion is also called oscillatory motion.

From the given, SHM equation, y = A sin(ωt) where A is the amplitude of the wave and ω is the angular frequency of the wave. In the cosine function,  y = A cos(ωt + Ф) where Ф is the phase change.

Thus, the amplitude of the vibration is 0.50 m. Hence, the correct option is C.

To learn more about Simple Harmonic Motion:

https://brainly.com/question/30404816

#SPJ2

Answer:

Toaster

Explanation:

A toaster draws electric current (electrical energy) from a wall outlet and converts these moving electric charges into heat (thermal energy) in the filaments that turn red hot to cook your toast. ... As electricity runs through the filaments in a space heater, the electrical energy is converted into heat (thermal energy).

Answer:

20

Explanation:

W = F*d

400 = 20*d

d = 20

Explanation:

SO2 is the best answer

please give brainliest and helpful

Answer: SO2

Explanation:

Explanation:

Given that,

The mass of an object, m = 1 kg

The mass of Earth, [tex]m_e=6\times 10^{22}\ kg[/tex]

The mass of Moon, [tex]m_m=7.4\times 10^{22}\ kg[/tex]

The distance between the two bodies, [tex]d=3.8\times 10^5\ km =3.8\times 10^8\ m[/tex]

The gravitational force between the object and the earth,

[tex]F=\dfrac{Gmm_e}{d^2}\\\\=\dfrac{6.67\times 10^{-11}\times 1\times 6\times 10^{22}}{(3.8\times 10^8)^2}\\\\=2.77\times 10^{-5}\ N[/tex]

The gravitational force between the object and the Moon,

[tex]F=\dfrac{Gmm_m}{d^2}\\\\=\dfrac{6.67\times 10^{-11}\times 1\times 7.4\times 10^{22}}{(3.8\times 10^8)^2}\\\\=3.41\times 10^{-5}\ N[/tex]

Hence, this is the required solution.

Answer:

i dont really know, sorry

Explanation:

Answer:

Centripetal acceleration = 8m/s²

Explanation:

Given the following data;

Radius, r = 2m

Velocity = 4m/s

To find the centripetal acceleration;

Centripetal acceleration = V²/r

Substituting into the equation, we have;

Centripetal acceleration = 4²/2

Centripetal acceleration = 16/2

Centripetal acceleration = 8m/s²

Therefore, the dog's centripetal acceleration is 8 meters per seconds square.

Answer:

The answer is B. hope this helps

Explanation:

Answer:

Decrease

Explanation:

If you were on the Moon, which has significantly less mass than the Earth, your weight would: decrease

The point that seemed to be giving me a complicated time was being able to distinguish the difference and meaning of weight and mass and being able to apply that to a problem. I kept mixing up the definitions. For example in homework 3.1, one question asked:

If you were on the moon, which has significantly less mass than the earth, your mass would:

a. increase

b. decrease

c. stay the same

d. become zero

The definition of mass is the amount of matter in an object. The definition of weight is the amount or unit of force. For me, I just had to remember that when it asked about weight, it wasn’t referring how heavy an object is. After I was able to recognize that when it came to weight, questions became easier.

The final and correct answer was decreasing. The answer is because the Moon’s mass is less. This means the gravitational force is less on your body, therefore, your mass is going to be lighter

Answer:

a sense of industry

Explanation:

I just had this question and got it right

Speed = 540 miles/hr

= (540 x 1.609) km/hr

= 868.86 km/hr

Distance = Speed x Time

= 868.86 x 1 / 2

= 434.43 km

Answer:

 m = 1,429 10⁻⁴ kg

Explanation:

For the object to remain floating, the translational equilibrium condition must be met, we set a reference system where the vertical upward direction is positive

          F_e -W = 0

          F_e = W

          q E = m g

we clear

         m = [tex]\frac{qE}{g}[/tex]

let's calculate

        m = [tex]\frac{7 \ 10^{-6} \ 200}{ 7 }[/tex]

        m = 1,429 10⁻⁴ kg

Answer:

Transverse wave, motion in which all points on a wave oscillate along paths at right angles to the direction of the wave's advance. Surface ripples on water, seismic S (secondary) waves, and electromagnetic (e.g., radio and light) waves are examples of transverse waves.

Answer:

Transverse wave, motion in which all points on a wave oscillate along paths at right angles to the direction of the wave's advance. Surface ripples on water, seismic S (secondary) waves, and electromagnetic (e.g., radio and light) waves are examples of transverse waves.

Explanation:

Examples of transverse waves include:

ripples on the surface of water.

vibrations in a guitar string.

a Mexican wave in a sports stadium.

electromagnetic waves – eg light waves, microwaves, radio waves.

seismic S-waves.

Answer:

the answer is B

Explanation:

edg 2020

Answer:

A

Explanation:

Put A, It will help you.

Answer:All three states of matter (solid, liquid and gas) expand when heated. ... Heat causes the molecules to move faster, (heat energy is converted to kinetic energy ) which means that the volume of a gas increases more than the volume of a solid or liquid.

Explanation:well I tried lol she just copied and pasted faster than I could

Answer:

If there is a net force acting on an object, the object will have an acceleration and the object's velocity will change. ... Newton's second law states that for a particular force, the acceleration of an object is proportional to the net force and inversely proportional to the mass of the object.

Explanation:

If the motion of an object changes, the net force on the object is greater than zero or the forces acting on the object is unbalanced.

According to Newton's second law of motion, the force applied to an object is directly proportional to the product of mass and acceleration of the object. The object will move in the direction of the applied force.

When the net force on an object is zero, the object will be remain at rest.

However, when the net force on object is greater than zero, the object will move in the direction of the greater force.

Thus, we can conclude that if the motion of an object changes, the net force on the object is greater than zero or the forces acting on the object is unbalanced.

Learn more here:https://brainly.com/question/19887955

Answer:

A

Explanation:

I took the test on progress learning and got it right.

If we increase the velocity of an object by 1 meter per second, as a result the kinetic energy of the object will increase as velocity is directly proportional to the kinetic energy.

The kinetic energy of an object is the energy which the object possesses due to its motion. Kinetic energy is defined as the work which is required be done to accelerate an object of a given mass from the state of rest to its stated velocity.

Kinetic energy is the energy possessed by an object due to its motion. Potential energy is the form of energy which is possessed by an object due to the position or state. Kinetic energy is directly proportional to the mass and velocity of the object. Therefore, if we increase the velocity of an object, then kinetic energy of the object will increase.

Learn more about Kinetic energy here:

https://brainly.com/question/15764612

#SPJ6

Answer:

391.67Hz

Explanation:

The fundamental frequency formula in string is expressed as;

Fo = V/2L

V is the velocity of the wave = 329m/s

L is the length of the string = 42cm = 0.42m

Substitute

Fo = 329/2(0.42)

Fo = 329/0.84

Fo = 391.67Hertz

Hence the  fundamental frequency of a mandolin string is 391.67Hz