The orbit of a spacecraft around the Sun has a perihelion distance of 0.1 AU and an aphelion distance of 0.4 AU. What is the semimajor axis of the spacecraft? What is its orbital period?

What will be able to maintain temperature better: conductors or insulators?

A block of size 20m x 10 mx 5 m exerts a force of 30N. Calculate the maximum & minimum pressure exerted by the block on ground? hello yeah tell me the answer of this question

What is the force of an object with a mass of 65 kg and an an unknown acceleration?

If a cheetah runs at 25 m/s, how long will it take a cheetah to run a 100 m dash?

Which sentence uses the correct adverb to make a comparison? A.) I wake up more earlier than my brother, B.). I wake up earliest than my brother C.) I wake up earlier then my brother.

As an astronaut travels towards Earth, her weight A. decreases because gravity decreases. B. decreases because her mass decreases. C. increases because gravity increases. D. remains the same because her mass remains the same.

Lightning often strikes water. a. True b. False

How much work must be done on a 10 kg snowboard to increase its speed from 4 m/s to 6 m/s?

If a spacecraft that seems to be motionless in deep space is given some type of quick push, what will happen? A. The spacecraft will not move because it only works on earth. B.

A fast, white water cascade is also known as what?