Spaceman Spiff is flying his rocket on patrol when he gets a distress call. An asteroid is on a collision course with a space station. The asteroid contains a newly discovered form of life, so Spiff must save both the asteroid and the space station. The easiest way to do this is to land his spaceship on the asteroid upside down so that the main rocket engines will point away from the asteroid. Spiff can then fire his engines and speed the asteroid up enough to that it will pass in front of the space station. If the asteroid has a mass of 18.5 Mkg, how much work Spiff’s rocket engines have to do if he wants to increase the asteroid’s speed by 23 km/s? How much work must his engines do if he decides it would be better to slow the asteroid down by 18.5 km/s?

In the nineteenth century, gregor mendel first determined some basic rules of genetics that have been observed throughout all types of life. no observations have disproved these basic rules of genetics. charles darwin developed the idea of biological evolution around the same time, but he was unaware of mendel’s discoveries in genetics. over a century later, darwin’s idea of evolution was modified in order to incorporate mendel’s rules of genetics along with the other evidence that darwin had used. what is most likely the relationship between mendel’s rules of genetics and darwin’s idea of biological evolution? a.)mendel’s genetics states laws that are now part of the theory of biological evolution.b.)biological evolution states laws that are part of mendel’s theory of genetics.c.)mendel’s genetics replaced darwin’s entire concept of biological evolution.d.)biological evolution is a law that explains why all genetics exist.

If a negatively charged particle is placed at rest in an electric potential field that increases in the positive x-direction, what will the particle do? a. accelerate in the positive x-direction b. remain at rest c. accelerate in the negative x-direction

An ascending elevator, hanging from a cable, is coming to a stop. part a part complete identify all forces acting on the elevator from the list below. select all that apply. select all that apply. kinetic friction normal force tension weight static friction submitprevious answers correct part b draw a free-body diagram of the object. draw the vectors starting at the black dot. the location and orientation of the vectors will be graded. the exact length of your vectors will not be graded but the relative length of one to the other will be graded.