Recent content by marco12345a

i don't know how

my teacher kept mentioning the drag is proportion to the velocity , and she told us to find the linear relationship between acceleration and the velocity, and we can find the constant of the drag. but i don't know what she meant by that

when multiply both sides with 700 it becomes P-D = 281.979 - 10.78v^2 well since D = kv^2 it becomes P - kv^2 = 281.979 - 10.78v^2

This is probably a maths question which I am struggling with the question states that drag is proportional to the square of the velocity D = kv^2 And there is a linear relationship between the square of the velocity and the acceleration dv/dt = - 0.0154 v^2 + 0.402827 assume the mass of...

I am trying to design a boat using magneto hydrodynamic engine MHD what sort of data should i be taking in account? the voltage, current, electric field strength, the velocity of the boat but what else should i look at ?

I am doing an assignment about launching a rocket and at the moment I am looking for the delta V of the rocket. I have done a few researches and i found a method of finding the energy of the rocket and find the delta vee of it , but then i found this article and I am not sure if it is delta vee...

okay thank you very much

how do you find the changing gravity ?

for example if a rocket is 1000 kg on Earth , what would the gravity be when it is at 300m

but doesn't the changing gravity affect the m ?

should i use the equation of E= 1/2 m^2 ?

When a rocket is launched, it starts not with velocity zero, but with the rotation velocity which the Earth gives it. Thus if a rocket is launched eastward, it requires a smaller boost (and if westward, a larger one) to achieve orbit. with a latitude of 31.1 degrees, cos(31degrees) 24902/24 =...