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3 years ago

What is the distance between a 2000 kg truck and a 3000 kg truck if the gravitational force between them is 0.00006 N?

Physics

1 answer:

Andrew [12]3 years ago

4 0

Answer:

A. 2.58m

Explanation:

Using the formula;

F = GMm/r²

M and m are the masses

G is the gravitational constant

r is the distance between the masses

Substitute

0.00006 = 6.67*10^-11(2000)(3000)/r²

0.00006r² = 6.67*10^-11*6000000

0.00006r² = 40.02*10^-5

0.00006r² = 0.0004

r² = 0.0004/0.00006

r² = 6.66

r = 2.58m

Hence the distance between them is 2.58m

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Describe briefly with used of practical knowledge the effect of the voltage stores across and current

DaniilM [7]

Answer:

Answer in explanation

Explanation:

The path of flow of circuit is called electric circuit. In an electric circuit, resistances are connected in two different ways, which are:

1- Series Combination of Resistances

2- Parallel Combination of Resistances

Series combination of resistances

In series combination resistors are connected end to end, and there is only one path for the flow of current.

Characteristics Of Series Circuit:

1. In series circuit there is only one path for the flow of current.

2. Same amount of current flows through each resistor.

I = I₁ = I₂ = I₃ = In

3. Total voltage of the battery is equal to the sum of voltages across each resistor.

V = V₁ +V₂ + V₃ + ... + Vn

4. In series combination the combined resistance of the resistors can be obtained by adding the value of each resistor.

R = R₁ + R₂ + R₃ + … + Rn

Parallel combination of resistances

Resistances are set to be connected in parallel, when each of them is connected directly from the terminals of electric source.

Characteristics Of Series Circuit:

1. There are more than one path for the flow of current.

2. The value of potential difference remains constant on each resistor.

V = V₁ = V₂ = V₃ = Vn

3. Total current is equal to the sum of current passing through each resistor.

I = I₁ + I₂ + I₃ +...+ In

4. Reciprocal of equivalent resistance is equal to the sum of reciprocals of resistances connected in parallel.

1/R = 1/R₁ + 1/R₂ + 1/R₃ + … + 1/Rn

The circuit diagrams are in attachment.

7 0

3 years ago

If the moon moved closer to the earth, how would the gravitational force between them change?.

hichkok12 [17]

If the moon moved closer to the earth, The gravitational force between them will increase.

This can be understood by Newton's law of universal gravitation. This is usually stated as that every particle attracts every other particle in the universe with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

$F_{gravitation}$ = G $\frac{M_{1} M_{2}}{r^{2} }$

If the moon moved closer to earth, the distance between them will be reduced, and as the force of gravitation is inversely proportional to the distance between the masses, the gravitation force increases.

Learn more about gravitation force here

brainly.com/question/12528243

#SPJ4

7 0

2 years ago

A 1 900-kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 4.00 m before coming into contact

Leno4ka [110]

Answer:

471392.4 N

Explanation:

From the question,

Just before contact with the beam,

mgh = Fd.................... Equation 1

Where m = mass of the beam, g = acceleration due to gravity, h = height. F = average Force on the beam, d = distance.

make f the subject of the equation

F = mgh/d................ Equation 2

Given: m = 1900 kg, h = 4 m, d = 15.8 = 0.158 m

Constant: g = 9.8 m/s²

Substitute into equation 2

F = 1900(4)(9.8)/0.158

F = 471392.4 N

6 0

3 years ago

The velocity of money is a the same thing as the long-term growth rate of the money supply. b the money supply divided by nomina

tia_tia [17]

b the money supply divided by nominal GDP

Explanation:

The velocity of money is nothing but the ratio of GDP and money supply. In other words, velocity of money also tells us the rate at which money is being exchanged in a country. The constant velocity says that the growth rate in the economy is zero. Velocity of money depends on the rate at which money is spent for finished goods and services per unit time. It is more when spending of money is more and it decreases when people spend less money. The total amount of money that is in circulation or that exists in a country is know as money supply.

3 0

4 years ago

A ball is thrown straight up into the air. At each of the following instants, is the ball's acceleration ay equal to g, −g, 0, g

Leto [7]

Answer:

a= (-g) from the moment the ball is thrown, until it stops in the air.

a = (0) when the ball stops in the air.

a = (g) since the ball starts to fall.

Explanation:

The acceleration is (-g) from the moment the ball is thrown, until it stops in the air because the movement goes in the opposite direction to the force of gravity. In the instant when the ball stops in the air the acceleration is (0) because it temporarily stops moving. Then, since the ball starts to fall, the acceleration is (g) because the movement goes in the same direction of the force of gravity

6 0

3 years ago

Read 2 more answers