Which of the following is an example of biotechnology?

A. Bacteria are grown in a Petri dish in a lab

B. A student traces their family tree

C. DNA samples are compared and used to identify suspects in a crime

D. A calculator can perform complex problems

It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .

On his honeymoon, james joule attempted to explore the relationships between various forms of energy by measuring the rise of temperature of water which had fallen down a waterfall on mount blanc. what maximum temperature rise would one expect for a waterfall with a vertical drop of 20 m? the specific heat of water is 4186 j/kg ∙ k. a)0.064 c° b)0.053 c° c)0.071 c° d)0.047 c°

Abenefit of using good human relations is that you'll a. have an easy time getting a better job. b. adjust to new situations better. c. find new and better friends. d. try to outdo your friends.