Suppose future astronauts are living on a Martian base when a major solar flare occurs. How long will it be before the charged particles ejected from the Sun during the flare reach them?

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.

Wind and moving water provide energy. question 1 options: chemical mechanical thermal none of the above