Category: Physics

How strong can a human kick? After looking at kicks from several different fighting styles, they found that experts could generate up to 9,000 newtons with them, equal to roughly a ton of force. A quick, sharp blow that delivers some 3,300 newtons of force has a 25 percent chance of cracking an average person’s […]

How do you know if its BCC or FCC? If the unit cell also contains an identical component in the center of the cube, then it is body-centered cubic (bcc) (part (b) in Figure 12.5). If there are components in the center of each face in addition to those at the corners of the cube, […]

Which has a greater nuclear charge NE or NA? Take note that the nuclear charge of an atom comes from the positively charged protons. Since sodium atom has 11 protons whereas neon has 10, sodium will have a greater nuclear charge. Which is bigger NE or Na+? Since Na+ has a higher effective nuclear charge, […]

Can you go to jail for cheating on Act? Yes, if you helped someone else cheat, you certainly could do jail time (probably not much, but still, any jail time is too much in my humble opinion) for criminal fraud, and possibly sued for fraud by the College Board, the schools to which you applied, […]

Why it is easy to pull than push? Friction is the force acting between the object and the surface. So, when there will be less force of friction, it is easier in that case to move the body. Hence, it is easier to pull than to push a body. What is easier push or pull […]

What is a secondary crop? 1 : a second harvest from the regrowth or second growth of a crop (as broomcorn) after harvesting earlier in the season. 2 : a crop planted after harvesting another crop on the same land earlier in the season. Which of the following is a benefit of crop rotation? A […]

Is boron a metal or metalloid? Boron is a non metallic element and the only non-metal of the group 13 of the periodic table the elements. Boron is electron-deficient, possessing a vacant p-orbital. Why is boron not a metalloid? Boron is neither a metal nor a non-metal; it is kept in the category of metalloids. […]

Why whales are called filter feeders? Whales called as filter feeders because they used to filtered their food through baleen plates. they suction water into their mouths at high velocities while their body remains stationary. The food along with water moves through the filtering pads or baleen plates that covered the entrance of their throat. […]

Does the ball lose the same percentage of energy with each bounce or is there an increase or decrease? We have the kinetic energy of the ball and the potential energy due to gravity. At the top of the bounce, there is no kinetic energy so all the energy is potential. For example, if a […]

What is the principle of a screw? A screw is a mechanism that converts rotational motion to linear motion, and a torque (rotational force) to a linear force. It is one of the six classical simple machines. The most common form consists of a cylindrical shaft with helical grooves or ridges called threads around the […]