Five different forces act on an object. Is it possible for the net force on the object to be zero? Explain

Answers

Answer 1

Answer: No. If there are forces on an object, they need to have a counterforce, otherwise the object won't be zero. Since there are only 5 forces, the 5th force has no counterforce, resulting in movement or reforming the object.

Answer 2

Answer: Of course it is !

-- Whatever the resultant of four of the forces is, one more force
with the same magnitude in exactly the opposite direction makes
the overall net force zero.

-- Example:
4 cheerleaders are in a tug-of-war against the captain of the football team.
The flag in the middle of the rope is stationary.
He's holding off all 4 of the skinny girls.
The net force on the flag is zero.

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Answers

The correct answer to the question that is stated above is letter b, Plate tectonics caused lava to flow. All of the options are mentioned in the theories of the formation of the moon except for letter B.

There are 5 serious theories about the formation of the moon,these are:
The Fission Theory--
The Capture Theory--
The Condensation Theory--
The Colliding Planetesimals Theory--
The Ejected Ring Theory--

See attached file for the description of each theory.

If a photon has a frequency of 1.15 x 10 to the 15 power Hertz what is the energy of the photon given: Planck's constant is 6.63 x 10 to the negative 34 joule seconds

Answers

Answer:

7.62 x $10^(-19)$ J

Explanation:

Given:

frequency 'f'= 1.15 x $10^(15)$ Hz

Planck's constant 'h'= 6.63x $10^(-34)$ Js

Energy of photon can be calculated by the formula:

E= hf

Where,

E= energy of photon

f= frequency of photon

h= Planck's constant

Putting the given values in the formula

E= 6.63x $10^(-34)$ x 1.15 x $10^(15)$

E= 7.62 x $10^(-19)$ J

Therefore, the energy of photon is 7.62 x $10^(-19)$ J

Answer:

Explanation:

Given:

Frequency, f = 1.15 × 10^15 Hz

Plancks constant, h = 6.63 × 10^-34 Js

Using the formula,

Energy, E = h × f

Inputting values,

Energy, E = 1.15 × 10^15 × 6.63 × 10^-34

= 7.6245 × 10^-19 J

Energy of the photon , E = 7.6245 × 10^-19 J.

The National Grid supplied a house with 18,000,000 J of energy in 1 hour. What was the average current supplied to the house during that hour?

Answers

I got 0.0126, but it feels wrong.

Kira jogs to a store 72 miles away in a time of 36 seconds. What is Kira's average speed?

Answers

Answer:

Explanation:

Do time divided by miles

36/72 = 0.5

That means for every mile 0.5 seconds is ran

that's pretty fast :)

The following items are connected in a circuit. in which one would you find a voltage gain?a. battery
b. lamp
c. resistor
d. ammeter

Answers

In a battery we can able to find the voltage gain.

The following information should be considered;

Since the battery is treated as the active device.
But the lamp, resistor, ammeter are considered to be the passive devices that result to the potential drops instead of the voltage gain.

Learn more: brainly.com/question/1691136?referrer=searchResults

Answer:

Explanation:

Let's assume you use green light (λ = 550 nm) to look at an electron. What is the uncertainty in determining the electron's velocity? Express your answer rounded up to the nearest hundredth.

Answers

By uncertainty principle

λ = h / p.

Where λ = wavelength, h = Planck's constant = 6.63 * 10⁻³⁴ Js

λ = wavelength = 550 nm = 550 * 10⁻⁹ m, Mass of electron = 9.1 * 10 ⁻³¹ kg

p = Momentum = mv

λ = h / mv

v = h / mλ

v = 6.63 * 10⁻³⁴ / (9.1 * 10⁻³¹ * 550 * 10⁻⁹)

v = 1 324 675.325 m/s

v ≈ 1.325 *10⁶ m/s

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