All categories

3 years ago

What is the force that can cause two pieces of iron to attract each other?

2 answers:

8 0

Is it A ? Yes ! Two pieces of iron DO always attract each other with equal and opposite gravitational forces, although the forces are so small that we never notice them.

Is it B ? Yes, it could be. If at least one of the pieces of iron is magnetized, then they can attract each other with equal and opposite magnetic forces.

Is it C ? Yes, it could be. But the pieces of iron would have to be joined by a stretched rubber band. Then they would attract each other with equal and opposite elastic forces.

Is it D ? Yes, it could be. If one of the pieces of iron carries a net electric charge, then they attract each other with equal and opposite electrostatic forces.

Rudiy273 years ago

6 0

Answer:

B. Magnetic Force

Explanation:

two pieces of irons cannot attract each other unless at least one of them is magnetize. That force is called magnetism.

You might be interested in

One major difference between plant and animal cells is that plant cells are the only ones with A) cellulose. B) lysosomes. C) nu

stira [4]

The correct answer is A .

5 0

3 years ago

Read 2 more answers

Imagine you leave the dock on a fishing boat that travels east for 30 kilometers when the captain realizes he left the fishing r

telo118 [61]

Answer:

Average speed is 60 km/hr whereas average velocity is 0 km/ hr.

Explanation:

The average speed of the boat is 60 km/ hr while on the other hand, the average velocity of the boat is 0 km/ hr because average speed is the total distance covered by the boat in total time and average velocity is the displacement covered by the boat in total time. The total distance covered by the boat is 60 km and the total time is 60 minutes which is equals to one hour so the answer is 60 km/hr whereas the displacement is the shortest distance between initial and final position which is 0 in this case so 0 divided by 60 minutes or one hour is also 0.

3 0

3 years ago

How is Einstein's equation E = mc^2 used in medicine?

zlopas [31]

This equation is used in nuclear medicine. Nuclear medicine is the branch of medicine that deals with the use of radioactive substances in research, diagnosis, and treatment.

In physics, this equation is generally used in the nuclear physics. E = mc^2 gives the energy release during a nuclear reaction.

8 0

3 years ago

So, like my previous question, how do you solve for 4/5 - 1/2?

ZanzabumX [31]

Answer:

3/10

Explanation:

4/5(2)

-1/2(5)

8/10-5/10

3/10

6 0

3 years ago

Read 2 more answers

How large a net force is required to accelerate a 1600-kg SUV from rest to a speed of 25 m/s in a distance of 200 m

Mars2501 [29]

Answer:

F=2496 N

Explanation:

Given that,

Mass of SUV, m = 1600 kg

Initial speed, u = 0

Final speed, v = 25 m/s

Distance, d = 200 m

We need to find the net force. Firstly, let's find acceleration using equation of motion.

$v^2-u^2=2ad\\\\a=\dfrac{v^2-u^2}{2d}\\\\a=\dfrac{(25)^2-(0)^2}{2\times 200}\\\\a=1.56\ m/s^2$

Net force, F = ma

$F=1600\times 1.56\\\\F=2496\ N$

So, the net force is 2496 N.

6 0

3 years ago