The answer is A)100m : 0m
The pool is 50m long
so she swam from the two ends of the pool two times
so in total she swam 50x2 m which is 100m
and she she displaced no meters because she ended in the same point as where she started
An object has identity(each object is a distinct individual). An object has state(it has various properties, which might change). An object has behavior(it can do things and can have things done to it). This is a somewhat ordinary description of what an object is like.
Answer:
The correct answer is - Denying the pleasure of an immediate reward so that you can receive a greater reward later.
Explanation:
Delayed gratification is a gratification method or the process that helps in improving self-control and helps in goals that take time to achieve. It is referred to as the ability to stop or prevent oneself from something more rewarding or pleasurable immediately, in order to get something more pleasurable or rewarding later.
For instance, an individual watch tv before a big exam or studying for the exam so can watch tv after getting good grades.
The correct answer is - option D.
Answer:
Objects; waves.
Explanation:
Waves interact with objects and other waves. Thus, waves are used on objects such as mobile phones and can be transformed from one form to another.
There are various types of waves in our physical environment such as gamma rays, x-rays, ultraviolet waves, radio waves etc.
Radio waves can be defined as an electromagnetic wave that has its frequency ranging from 30 GHz to 300 GHz and its wavelength between 1mm and 3000m. Therefore, radio waves are a series of repetitive valleys and peaks that are typically characterized of having the longest wavelength in the electromagnetic spectrum.
Basically, as a result of radio waves having long wavelengths, they are mainly used in long-distance communications such as the carriage and transmission of data. Some examples of communication technologies that uses radio waves are radio set, mobile phones, television etc.
Answer: The weight of a 72.0 kg astronaut on the Moon is 117.36 N.
Explanation:
Mass of the astronaut on the moon , m= 72 kg
Acceleration due to gravity on moon,g = 1.63 
According to Newton second law of motion: F = ma
This will changes to = Weight = mass × g
The weight of a 72.0 kg astronaut on the Moon is 117.36 N.
