NCERT solutions for CBSE and other state boards is a key requirement for students. Doubtnut helps with homework, doubts and solutions to all the questions. It has helped students get under AIR 100 in NEET & IIT JEE. Get PDF and video solutions of IIT-JEE Mains & Advanced previous year ...
3 (a) Explain what is meant by work done.[1](b) A ball of mass 0.42kg is dropped from the top of a building. The ball falls from rest through a vertical distance of 78 m to the ground. Air resistance is significant so that the ball reaches constant (terminal) velocity before ...
Explain why mass cannot be used as a property to identify a sample of matter. Does the amount of solvent used for a recrystallization have an influence on the yield of product of a recrystallization? Explain. Describe the properties of a buffered solution. A nonmetal is usually: a. brittle ...
What is the buoyant force on a helium balloon in the air if the balloon is spherical with a diameter of 12.5 cm? Some fish have a density slightly less than that of water and must exert a force (swim) to stay submerged. What force must an 85.0-kg grouper exert to stay submerged in ...
NCERT solutions for CBSE and other state boards is a key requirement for students. Doubtnut helps with homework, doubts and solutions to all the questions. It has helped students get under AIR 100 in NEET & IIT JEE. Get PDF and video solutions of IIT-JEE Mains & Advanced previous year pap...
Newton came up direction.what they're doing unless a with a scientific formul a to explain stronger force acts on them.this:Force = Mass x Acceleration.158.Air from an untied balloon rushes out in one direction. As the air escapes.it pushes the balloon in the opposite direction.Here,...
“These are serious allegations, and DEA must respond to them and clear the air,” Grassley wrote in a letter sent to Milgram’s office, a copy of which was obtained by the AP. The scrutiny by the Justice Department’s Office of Inspector Genera comes as the DEA is struggling with repea...
How much force is a newton? This orange has a mass of about 100g (0.1kg) so I need to supply 1N (one newton) of force to hold it in mid-air. Loosely speaking, we say the orange "weighs" 100g; strictly speaking, it weighs 1N. ...
a当你进入别人的房间前最好先敲门 正在翻译,请等待...[translate] a周六,如果我能早起的话跟你约时间 On Saturday, if I can get up early with your approximately time[translate] a生物质能源的现状和发展 Biological mass energy source present situation and development[translate] ...
Carrying a lot of fuel adds mass to the probe, making it more expensive to launch. Instead, such devices usually use radioisotope thermoelectric generators (RTGs). In an RTG the natural radioactive decay of some unstable isotope such as plutonium-238 or strontium-90 produces a lot of heat....