Answer:
An object changes position if it moves relative to a reference point. The change in position is determined by the distance and direction of an object's change in position from the starting point (displacement). Direction • Direction is the line, or path along which something is moving, pointing, or aiming.
Explanation:
Typical examples of inelastic collision are between cars, airlines, trains, etc.
For instance, when two trains collide, the kinetic energy of each train is transformed into heat, which explains why, most of the times, there is a fire after a collision. However, the momentum of the two trains that are involved in the collision remains unaffected. So, the trains collide with all their speed, maintaining their momentum, yet their kinetic energy is transformed into heat energy.
Another way to explain a train or a car collision is this: when the two trains or cars collide, they stick together while slowing down. They slow down because their kinetic energy is gradually lost. Still, they collide because they conserve their momentum.
The reactants have more energy than the products. If a reaction is EXOthermic, it loses energy during the reaction, so the output (products) will have less energy than the input (reactants).
Answer:
The answer is option D
Explanation:
To solve the question, you need to bring to mind the wave equation:
Velocity = Frequency * wavelength
Step 1: Find the velocity for the first wavelength given:
Velocity(V) = frequency * wavelength
V= 170Hz * 2.0m
V= 340m/s
Step 2: Equate the velocity obtained to the wave equation using the second wavelength given
Velocity= Frequency * Wavelength
340m/s = 340Hz * Wavelength
Wavelength = 340m/s / 340Hz
Wavelength = 1 m.
