Answer:
Kinetic energy at the bottom equals potential energy at the top hence 269971.2 J
Explanation:
Assuming no friction and neglecting air resistance, from the law of conservation of energy, the potential energy that the car posses at 32 m is all converted to kinetic energy hence
PE= mgh
Here m denotes the mass of the car, g is acceleration due to gravity, h is the height and v is the speed of the car
The potential energy will be PE= 860*9.81*32=269971.2 J
Answer:
It is the amount of energy required to raise the temperature of one gram of a substance by one degree Celsius.
Explanation:
Hope this helps and have a good day
Answer:
A. Gamma rays have higher energy than microwaves because gamma rays have shorter wavelengths.
Explanation:
Electromagnetic waves are waves produced by the interaction between both magnetic and electric fields. These waves have some properties that make them to be arranged in a definite form producing an electromagnetic spectrum.
The spectrum has a general property of which as the wavelength of the waves increases, the frequency decreases. And vice versa.
Thus, the energy of the waves increases as the frequency increases.
Gamma rays have higher frequency, but shorter wavelength. While microwaves has lower frequency, but higher wavelength.
Answer:
I'm not really sure but I think it is
four
From the choices provided, the better answer is ' T ' .
