28) A metal bar is shown below. The point of rotation is shown as a black dot. What is the magnitude of the unknown force so that the metal bar does not move? (not to scale)

3.51

1.82

75°

390 N

710 N

599 N

a) 239.02 N

b) -239.02 N

c) 629.02 N

d) -629.02 N

What is the relationship between the wavelength of a wave and it's energy?

Will give brainliest! which statement best describes the similarities between fundamental forces? electromagnetic and strong nuclear forces influence the interaction between charged particles within an atom. gravitational and magnetic forces are both types of charges that occur in nature. nuclear and magnetic forces are both related to mass and weight. strong nuclear force is most like electrical force because they are both related to distance.

Atypical jetliner lands at a speed of 146 mi/h and decelerates at the rate of (10.4 mi/h)/s. if the jetliner travels at a constant speed of 146 mi/h for 1.5 s after landing before applying the brakes, what is the total displacement of the jetliner between touchdown on the runway and coming to rest?