People I
A photographer wants to share her photos wi
other parts of the world.
What are two reasons the photographer would choose a digital signal rather
than an analog signal to share the photos?
A. The digital signal is less vulnerable to noise and more likely to
arrive intact.
B. The digital signal moves gradually between an infinite number of
values.
C. The digital signal could easily lose information because of noise
over long distances.
D. The digital signal can be copied many times without losing
quality

Work = force × a. work b. energy c. distance d. momentum

As part of your daily workout, you lie on your back and push with your feet against a platform attached to two stiff springs arranged side by side so that they are parallel to each other. when you push the platform, you compress the springs. you do an amount of work of 79.0 j when you compress the springs a distance of 0.230 m from their uncompressed length. (a) what magnitude of force must you apply to hold the platform in this position? (b)how much additional work must you do to move the platform a distance 0.230 m farther? (c) what maximum force must you apply to move the platform a distance 0.230 m farther?

The smallest particle of an element that retains its identity in a chemical reaction. true or false