No.
East-force can only be balanced by west-force.
North-force has no west-force in it, no matter how strong it is.
When red light illuminates a grating with 7000 lines per centimeter, its second maximum is at 62.4°. What is the wavelength of this light?
ans: 633nm
Answer:
33.725 rpm
Explanation:
The relationship between rotational speed in radians per second and acceleration is ...

We want the rotation rate in RPM, so we need the conversion ...

Then the required rotational speed in RPM is ...

The rotation rate needs to be about 33.7 rpm to give an acceleration of 1.4g at the astronaut's feet.
Answer:
as its mass and velocity will less so its momentum will be less than that of baseball
Since the main objective of this experiment is to determine the effect of porosity on seedling growth that should be the only independent variable. In short, that is the only variable that should be different to ensure fair testing.
The answer should be B:
he plants seedlings in soils with different levels of porosity and equal levels of permeability.
Permeability is not what needs to be tested. If it changes, you may not be able to determine whether it was the porosity or permeability that cause changes.