homeworkboy said:One liter ( 1000 cm^3) of oil is spilled onto a smooth lake.If the oil spreads out uniformly until
it makes an oil slick just one molecule thick, with adjacent molecules just touching, estimate
the diameter of the oil slick. Assume the oil molecules have a diameter of 2X10^-10m.
homeworkboy said:Well i would first convert the volume of water into m3 which is 1. so...then i can't think of anythin..i need help solving this
homeworkboy said:sorry i meant volume of oil...well volume of oil molecule will be Pi r^2 so..22/7 * (1 * 10^-10)^2
so 3.14 X 10^-20
homeworkboy said:its m3
homeworkboy said:the unit is meter cube or litres
homeworkboy said:sorry volume is ( π X d³)/6
homeworkboy said:then the vol of molecule is 4.2 X 10^-30...so no. of those in 1 L are 2.4 X 10^29...what next
Speed is the measure of how fast an object is moving, while velocity is the measure of both the object's speed and its direction of motion. In other words, velocity takes into account the object's displacement over time, while speed does not.
Newton's First Law of Motion, also known as the Law of Inertia, states that an object will remain at rest or in motion with a constant velocity unless acted upon by an external force. In simpler terms, objects at rest tend to stay at rest and objects in motion tend to stay in motion unless something stops or changes their motion.
Mass is a measure of the amount of matter in an object, while weight is a measure of the force of gravity acting on an object. Mass is typically measured in kilograms, while weight is measured in Newtons (or pounds in some systems of measurement).
According to Newton's Second Law of Motion, the acceleration of an object is directly proportional to the net force acting on the object and inversely proportional to its mass. In other words, the greater the force applied to an object, the greater its acceleration will be. Similarly, the more massive an object is, the less it will accelerate under the same force.
Kinetic energy is the energy an object possesses due to its motion, while potential energy is the energy an object has due to its position or state. For example, a moving car has kinetic energy, while a stretched rubber band has potential energy. Both types of energy can be converted into one another.