Alisha uses wire to connect a battery, a lightbulb, and a switch, but the bulb does not light up even though the switch is in the closed position. Which might explain the problem?

Answers

Answer 1

Answer:

Alisha uses wire to connect a battery, a lightbulb, and a switch, but the bulb does not light up even though the switch is in the closed position. The switch is in closed position that is why her circuit would not work. It must be open so that electrons can move along the wire and enable the lightbulb to light up.

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A pendulum has a period of 0.3 second. What is its frequency?

Answers

Frequency= 1/T T=Period T=0.3 Frequency = 3.33 repeating. Hz

What are the aplication of heating effect of electric current?

Answers

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Which career is most concerned with the study of radioactive isotopes?

Answers

The career in the nuclear laboratory, atomic research centre is most concerned with the study of radioactive isotopes. Also the nuclear thermal power plant, advance military services weapon, research and development are concerned with the study of radioactive isotopes.

Two objects move toward each other because of gravitational attraction. As the objects get closer and closer, the force between them _____. A. remains constant B. decreases C. increases

Answers

As 2 objects get closer and closer due to the gravitational attraction, the force between them C. increases.

Two objects move toward each other because of gravitational attraction. To understand the gravitational force, we need to consider Newton's law of universal gravitation, which states 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. Mathematically,

$F = G (m_1m_2)/(r^(2) )$

where,

F: gravitational force
G: gravitational constant
m₁: mass of object 1
m₂: mass of object 2
r: distance between centers of the masses

As the objects get closer, the distance between them decreases, and consequently the gravitational force increases.

As 2 objects get closer and closer due to the gravitational attraction, the force between them C. increases.

Learn more: brainly.com/question/11033817

Answer:

C. increases

Explanation:

Law of Universal Gravitation

This law establishes that bodies, by simply having mass, experience a force of attraction to other bodies with mass, called gravitational force or gravitational force.

The gravitational force between two bodies is directly proportional to the product of their masses and inversely proportional to the square of the distance that separates them.

$F_(g) =G((M*m)/(r^(2) ) )$ Formula (1)

where:

G is the universal gravitation constant, G = 6.67 · 10-11 N · m² / kg²

M and m are the masses of the bodies that interact (kg)

r is the distance that separates them. (m)

Problem development

As objects get closer and closer the distance (r) that separates them decreases and because M, m and G remain constant, in formula (1):

$F_(g) =G((M*m)/(r^(2) ) )$

, if r decreases then Fg increases.

The forces acting on a falling leaf are

Answers

Answer:

Gravitational and resistance force.

Explanation:

The push or pull on any object which causes an object to move is called force. The forces can be of many types. The forces acting on the falling leaf are :

Gravitational force : The force that acts in downward direction is called the force of gravity. This force pulls every object towards it.
Resistance force/ normal : The force that act opposite to gravitational force is called the resistance force. It opposes the direction of motion of the leaf.

the forces acting on a leaf are gravity and air resistance.In some cases the only force acting on an object is gravity, if that occurs then its called freefall.

If an object weighing 32lbs is acted upon by a net force of 32 lbs, what will be its acceleration?

Answers

That"s exactly the situation when you drop the object off the roof or out of a tree... then the net force on it is the ONLY force on it, I.e. the force of gravity, and its acceleration is the acceleration due to gravity ... 32 ft/sec^2 .

the acceleration would be 0 because lifting force up Is the same as the gravity going down. And therefore will not accelerate. The object has no net force

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