Which device requires an electric power supply?

Answer: Interact With Charged Particles

Explanation:  

The ball's velocity after 3.00 seconds is -9.8 m/s. The negative sign indicates that the ball's velocity is directed downward after 3.00 seconds.

Given:

u = 19.6 m/s (upward)

t = 3.00 s

The equation for the vertical motion of an object under constant acceleration:

v = u + gt

Where:

v = final velocity

u = initial velocity

g = acceleration due to gravity

t = time

v = u + gt

v = 19.6 + (-9.8) × 3.00

v = -9.8 m/s

The negative sign indicates that the ball's velocity is directed downward after 3.00 seconds. Therefore, the ball's velocity after 3.00 seconds is -9.8 m/s.

To know more about the velocity:

https://brainly.com/question/30559316

#SPJ4

To find the ball's velocity after being thrown upward at a velocity of 19.6 m/s after 3.00 seconds, apply the kinematic equation, v = u + at. Using gravity's acceleration of -9.8 m/s², the final velocity is calculated to be -9.8 m/s, indicating downward movement.

The question involves calculating the velocity of a ball after 3.00 seconds when it is thrown upward with an initial velocity of 19.6 m/s. To solve this, we can use the formula v = u + at, where v is the final velocity, u is the initial velocity, a is the acceleration (which, in the case of free fall, is the acceleration due to gravity and is approximately -9.8 m/s²), and t is the time in seconds. The negative sign represents that gravity is acting in the opposite direction of the throw.

Using this formula:

We find the final velocity:

v = 19.6 m/s + (-9.8 m/s²) * 3.00 s = 19.6 m/s - 29.4 m/s = -9.8 m/s

This means that after 3.00 seconds, the ball's velocity would be -9.8 m/s, where the negative sign indicates that at this point, the ball is moving downwards.

V = √(2K.E/m) where v is the velocity, K.E is the kinetic energy and m is the mass.

Kinetic energy is the energy possessed by a body when in motion. It is calculated by the formula, K.E = 1/2 MV² , where m is the mass of the body, and v is the velocity of the body.

To get Velocity from the formula, we make V the subject of the formula, such that;

K.E = 1/2mv², multiplying both side by 2;

2 k.e = mv²; then we divide both side by m.

v² = 2k.e/m; then we get the square root on both side;

v = √(2k.e/m)

The first 36 elements in the periodic table are: H, He, Li, Be, B, C, N, O, F, Ne, Na, Mg, Al, Si, P, S, Cl, Ar, K, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, As, Se, Br, Kr.

The first 36 elements in the periodic table are as follows:

1. Hydrogen (H)

2. Helium (He)

3. Lithium (Li)

4. Beryllium (Be)

5. Boron (B)

6. Carbon (C)

7. Nitrogen (N)

8. Oxygen (O)

9. Fluorine (F)

10. Neon (Ne)

11. Sodium (Na)

12. Magnesium (Mg)

13. Aluminum (Al)

14. Silicon (Si)

15. Phosphorus (P)

16. Sulfur (S)

17. Chlorine (Cl)

18. Argon (Ar)

19. Potassium (K)

20. Calcium (Ca)

21. Scandium (Sc)

22. Titanium (Ti)

23. Vanadium (V)

24. Chromium (Cr)

25. Manganese (Mn)

26. Iron (Fe)

27. Cobalt (Co)

28. Nickel (Ni)

29. Copper (Cu)

30. Zinc (Zn)

31. Gallium (Ga)

32. Germanium (Ge)

33. Arsenic (As)

34. Selenium (Se)

35. Bromine (Br)

36. Krypton (Kr)

These elements are arranged in order of increasing atomic number, which is the number of protons in the nucleus of an atom. The periodic table is a fundamental tool in chemistry that organizes all known elements according to their chemical and physical properties. The elements are grouped into periods (rows) and groups (columns), with elements in the same group sharing similar chemical properties. The first 36 elements include metals, nonmetals, and metalloids, and they form the basis of a wide range of chemical compounds and materials essential to life and technology.

= 0.0020108 m³

  V₁=0.002 m³, T₂ =20 °C

   V₂= ?   T₂ = 50° C

That is, 50°C - 20°C = 30 °C

       V₂ =V₁ [1 + γ(50-30)]

              =  0.002 [1 + 0.00018(30)]

              = 0.0020108 m³

Therefore; the volume of mercury at 50°C is  0.0020108 m³

The amount of energy will be 12,528,000 J.

Energy represents the ability to do tasks. This could exist in several forms, including potential, kinetic, thermal, electrical, chemical, radioactive, and others.

Given data:

[tex]P_{1} = 200 W\\P_{2} = 55W[/tex]

Calculation of energy

The energy can be calculated by using the formula:

ΔW = [tex]W_{1} - W_{2}[/tex]

It is known that, w = pt

where, w is energy and p is power.

ΔW =

[tex]= P_{1}t - P_{2}t = t(P_{1}- P_{2}) \\= 86400 (200 - 55) \\= 12528000 J[/tex]

Therefore, the amount of energy will be 12,528,000 J.

To know more about energy.

https://brainly.com/question/1932868

#SPJ2

Sample Response: The amount of solar energy that reaches the Earth’s surface depends on the weather, location, and time of year.

PLZ! RATE AND THANKS!

Answer:

The ball would have greatest speed at the bottom of ramp C

Explanation:

From the given ramps, C would generate the highest potential energy especially at the highest point that the ball starts to move down the ramp. Potential energy is the energy possessed by an object moving with a uniform velocit or at rest. Since potential energy increases with height, the potential energy gained by the ball on ramp C would cause an increase in its momentum as it glides down to the bottom of the ramp.

c) 90% is the efficiency of the leaver.

Efficiency is the energy output, divided by the energy input, and expressed as a percentage.

Efficiency = (1350/1500)×100

               = 90%

Efficiency may be expressed as a ratio by using the following components: Output ÷ input. Output, or painting output, is the overall amount of useful work finished without accounting for any waste and spoilage. You can also express performance as a percentage by using multiplying the ratio by using one hundred.

A second class lever is the handiest lever which can promise that the attempt arm will usually be more extra than the load arm. This arrangement results in a larger attempt arm-to-load arm ratio, making the second magnificence lever the maximum robotically high-quality.

The question is incomplete. Please read below to find the missing content.

Bill does 1500 J of work on a lever, which is a simple machine. The lever does 1350 J of work on a stone.

What is the efficiency of the lever?

a)0.9%

b)1.1%

c)90%

d)111%

Learn more about the simple machines here https://brainly.com/question/2786023

#SPJ2

The answer is false.

Answer:

Elastic Force

Explanation:

As we pull the spring from one of its end by some distance such that its length is stretched by some amount "x"

So here the restoring force on the spring is given as

[tex]F = kx[/tex]

so here we know

k = coefficient of elasticity

x = change in the length of spring

So here the restoring force on the spring will be Elastic force which always act opposite to the direction of displacement of the spring

Answer:

4 beats per second

Explanation:

When two waves of slightly different frequencies overlap, they produce an interference pattern called beat, which consists in a periodic oscillation whose frequency is called beat frequency.

The beat frequency is equal to the absolute value of the difference between the frequencies of the two original waves:

[tex]f_{beat}=|f_1 -f_2|[/tex]

In this problem, the frequencies of the two waves are:

[tex]f_1 = 24 Hz\\f_2 = 20 Hz[/tex]

So, the beat frequency is

[tex]f_{beat}=|20 Hz-24 Hz|=4 Hz[/tex]

which corresponds to 4 beats per second.

Electromagnetic waves are created by a charged particle that generates an electric field. The electric field creates a magnetic field. As the charged particle moves, the electric field and magnetic field keep changing, which causes the wave to move.

Answer:

We associate roughness with a greater coefficient of friction, then we think that rough surfaces on clothing would inhibit the speed of an Olympic athlete.  This is not always true because the amount of roughness might improve the way air pass through the fabric.  

One example of controlled roughness that actually promote speed are the dimples on golf balls. Dimples create turbulence around the ball, which sucks air to the ball, making its displacement easier and promoting its speed.

A stretched rubber band has elastic potential energy.

A substance is a single component that cannot be separated into other substances. Homogeneous mixtures exemplify this concept.

Substance refers to a single component that can't be separated into other substances through chemical means. A homogeneous mixture is a type of substance that is uniform throughout, like salt dissolved in water.