Which of the following is true regarding an 8 kg bird flying at a height of 10 m with a velocity of 5 m/s? A: The total mechanical energy of the bird is 900 J. B:The kinetic energy of the bird is 100 J. C: The total mechanical energy is 884 J. D: The gravitational potential energy of the bird is 784 J. E: The gravitational potential energy of the bird is 800 J.

What type of electromagnetic wave is used in security pens? a. x-rays c. microwaves b. visible light d. ultraviolet radiation select the best answer from the choices provided

In positive numbers less than 1, the zeros between the decimal point and non zero are significant

Athin plate moves between two parallel, horizontal, stationary flat surfaces at a constant velocity of v = 7.5 m/s. the two stationary surfaces are spaced 4 cm apart, and the medium between them is filled with oil whose viscosity is 0.9 n·s/m2. the part of the plate immersed in oil at any given time is 2 m long and 0.5 m wide. if the plate moves through the mid-plane between the surfaces, determine the force required to maintain this motion. what would your response be if the plate was 1 cm from the bottom surface (h2) and 3 cm from the top surface (h1)? if the plate moves through the mid-plane between the surfaces, the force required to maintain the motion will be n. if the plate was 1 cm from the bottom surface (h2) and 3 cm from the top (h1) surface, the force required to maintain the motion would be n.