You wish to place a spacecraft in a circular orbit around the earth so that its orbital speed will be 4.00×103m/s. what is this orbit's radius?

The radius of orbit=

Explanation:

We are given that

Orbital speed=m/s

We have to find the radius of orbit of spacecraft.

We know that

Gravitational constant=

Mass of earth=

Orbital speed=

Where G= Gravitational constant

M=Mass of earth

r=Radius of orbit

Substitute the values in the formula

Squaring on both sides

Hence, the radius of orbit=

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles

i dont have a visual in front of me, but i can you reason to try to get the right one. the graph should look like this, 0 to 6 there is a spike, 12 to 14 there should be a very low point. slight increase in the graph at 12 to 14, and flat 14 to 18

explanation: