Choose the best answer to the following:The nucleus of an electrically neutral iron atom contains 26 protons. The number of electrons this iron atom has is(a) 52.(b) 26.(c) 24.(d) None.

Q: Choose the BEST answer to the following: The power required to raise a 100-kg crate a vertical dista...

A: Given:Mass=100kgvertical distance =2mTime=4s

Q: A solid floats with (1/4)th of its volume above the surface of water. Calculate the density of solid...

A: Given,           A solid float with (1/4)th of its volume above the surface of water.

Q: A train composed of a small engine car and a massive cargo car are connected as they move along a tr...

A: When two bodies are connected, they are considered as a single system and both bodies have the same ...

Q: Without glasses, your uncle Albert can see things clearly only if they are between 25.1 cm and 135 c...

A: The power of the lens can be calculated using the Lens maker’s formula.

Q: Choose the BEST answer to the following: The team that wins in a tug-of-war is the team that (a) pro...

A: Answer: bi.e  pushes hardest on the ground

Q: Help with C

A: (a)Convert the lower and upper value of a cubit into meters and then multiply by 8 since the length ...

Q: When trying to solve this problem, I got 2.86 as an answer. This was incorrect. Thank you.

A: By condition,

Q: 2. In physiotherapy ultrasound with frequency f = 800 kHz and intensity I = 1 W/cm² is used. Find am...

A: Click to see the answer

Q: I need help with questions #3.

A: Click to see the answer