A 1800 kg crate and a level floor has a coefficient of static friction of 0.75 and a coefficient of kinetic friction of 0.67. a. How hard can you push the crate until it starts moving?

b. Find the acceleration of the crate if someone pulls horizontally on the crate with a force of 20,000.

Answerthe energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.explanationwe define electric potential as the ratio electric potential energy to the charge,    then the following gives us the potential difference,      the formula  may be on your formula sheet.the change in electric potential energy would be the energy that would needed to move it from point a to point b. solving for that, we get    using q = 8.00  × 10⁻¹⁹ c and  δv = 2.00 v, we get    the energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.

The fertilized egg  begins to develop into a hollow ball of cells called the blastocyst. 

In psychology, a person who thinks that upbringing and environment are much more important than genes is more on the side of in the nature versus nurture debate.the answer in the blank is letter b which is nature. they are more on the nature and environmental side than the genetic side of species.