When energy is transferred from one part of a system to another, some of the energy is lost during the transfer and cannot be used as it was intended.
Which two sentences describe examples of this?

A. An electric motor heats up as it powers a blender.
B. Wind moves a turbine, generating electricity.
C. Friction between the moving parts of an airplane engine warms
thd'arts as the engine burns fuel.
D. Sunlight strikes a solar panel, generating electricity.
E. Stereo speakers emit sound when powered by electrical energy.

When describing down syndrome, it's important to note that a. it can be classified as a single-gene disorder b. it is caused when red blood cells cannot properly form hemoglobin c. it causes infected males to have low testosterone levels d. it is usually caused by three copies of chromosome 21 select the best answer from the choices provided. a b

The force it would take to accelerate an 900-kg car at the rate of 6m/s2

Asilver dollar is dropped from the top of a building that is 1324 feet tall. use the position function below for free-falling objects. s(t) = −16t2 + v0t + s0 (a) determine the position and velocity functions for the coin. s(t) = v(t) = (b) determine the average velocity on the interval [1, 2]. ft/s (c) find the instantaneous velocities when t = 1 second and t = 2 seconds. v(1) = ft/s v(2) = ft/s (d) find the time required for the coin to reach the ground level. (round your answer to three decimal places.) t = s (e) find the velocity of the coin at impact. (round your answer to three decimal places.) ft/s