Please answer as soon as possible.

A Physics question about electricity and circuits.

Answers

Answer 1

Answer: R=144 ohms with method shown on photo

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A 5 kg sledge hammer is held over head (2 meters above the ground). What is the maximum amount of work it can do if it falls to the ground?

Answers

The maximum amount of work that the hammer can do while falling to the ground is equal to its variation of gravitational potential energy, which is given by:
$\Delta U = mg\Delta h$
where m is the mass of the hammer, g is the gravitational acceleration, h is the variation in altitude of the hammer.

Plugging the data of the problem inside the equation, we find
$W=mg\Delta h=(5 kg)(9.81 m/s^2)(2 m)=98.1 J$

What would happen if your stomach wasint working properly

Answers

Your stomach, as in JUST your stomach?
Well the role of your stomach is to break down large clumps of food. Without that it would be very hard to impossible to digest food.

Are white clouds transparent opaque or translucent

Answers

Believe it or not white clouds can be both opaque and transparent depending on the volume and mass within that cloud. The heavier the cloud, the more opaque it'll seem, but the lighter the cloud is, it'll seem transparent-

The force that one surface exerts on another when the two rub against each other is calledA. friction.
B. acceleration.
C. inertia.
D. gravity.

The law of universal gravitation states that any two objects in the universe that have mass, without exception,
A. attract each other.
B. repel each other.
C. combine to provide a balanced force.
D. create friction.

ANswer both

Answers

1. Friction (Example: when you rub your hands together and you start to feel heat.)

2. Attract each other. (Example: Every object has a gravitational pull of some sort. The larger the object, the stronger the gravitational pull. This is why the sun is able to keep all eight planets in orbit around it.)

3. Hope this helped :)

A box weighing 100 newtons is pushed up an inclined plane that is 5 meters long. It takes a force of 75 newtons to push it to the top, which has a height of 3 meters. What is the efficiency?

Answers

the efficiency is 575 newtons

Dale and Alex push on opposite sides of a couch. Dale pushes to the left witha force of 100 N, while Alex pushes to the right with a force of 175 N. If the
couch has a mass of 55 kg, what is the acceleration of the couch?
O A. 5 m/s2 right
O B. 5 m/s2 left
O c. 1.4 m/s? right
O D. 1.4 m/s2 left
SUBMIT

Answers

Answer:

C. 1.4 m/s² right

Explanation:

Apply Newton's second law. Take right to be positive and left to be negative:

∑F = ma

175 N − 100 N = (55 kg) a

a = 1.4 m/s²

The couch accelerates to the right at 1.4 m/s².

Final answer:

To find the acceleration of the couch, use Newton's second law of motion, which states that the net force acting on an object is equal to the mass of the object multiplied by its acceleration. The net force is calculated by subtracting the forces applied by the two individuals pushing in opposite directions. By plugging in the given values and solving the equation, the acceleration of the couch is found to be approximately 1.4 m/s² to the right.

Explanation:

To find the acceleration of the couch, we need to use Newton's second law of motion, which states that the net force acting on an object is equal to the mass of the object multiplied by its acceleration. In this case, the net force is the difference between the forces applied by Dale and Alex, since they are pushing in opposite directions.

The net force can be calculated as 175 N (force applied by Alex) minus 100 N (force applied by Dale), which equals 75 N. The mass of the couch is given as 55 kg. Plugging these values into the equation, we get:

Net force = mass × acceleration

75 N = 55 kg × acceleration

Dividing both sides of the equation by 55 kg gives us:

acceleration = 75 N ÷ 55 kg ≈ 1.4 m/s²

Since the net force is positive (to the right) and greater than zero, the acceleration of the couch is also to the right. Therefore, the correct answer is 1.4 m/s² right (option C).