Check all that apply. the center of gravity of a triangular solid with uniform thickness and density
a. the point at which one can balance the triangle.
b. the point shared by a triangle's altitudes.
c. the centroid.
d. the orthocenter.

Orque can be calculated by multiplying the force (n) applied at 90? to the lever arm at a distance (m) from the pivot point (point of rotation), the compound si unit for the torque is n? m. if the force (at 90? to the lever arm) applied is 15 n and it is applied at 2.0 m from the pivot point (point of rotation), what is the torque on the lever?

Need people build a dam to create a reservoir that supplies water a nearby city needs. describe two ways this action will likely affect the water cycle in the local environment. (5 points) worth 20 points

Wavelength of 125 meters is moving at a speed of 10 m/s. what is it's frequency?