Which cells in the immune system identify pathogens and distinguish one pathogen from another?

T cells

phagocytes

B cells

red blood cells

A 12.0-g plastic ball is dropped from a height of 2.50 m. Just as it strikes the floor, it is moving at a speed of 3.20 m/s. How much mechanical energy did the ball lose during its fall? 0.233 J 0.256 J 0.128 J 0.512 J

Who speaks the line "Lord, what fools these mortals be"? A. Mustardseed B. Puck C. Oberon D. Cobweb

4. If a 2500 kg car is driving at a speed of 35 m/s, how much momentum does it have?

As Jules pushes a box across a the floor that it moves faster on the waxed tiles than the carpet. Explain why. A) The more friction experienced means less movement.

Is temperature the same as internal energy?

A California Condor is approaching its nest with a large chunk of carrion in its beak. As it approaches, it makes an upward swoop, achieving a momentary upward velocity of 12.

Radiation transfers thermal energy through -

A PWC is overtaking another vessel. Which vessel must give way?

A car traveling at + 7.0 m/s accelerates at the rate of + 0.80 m/s2 for an interval of 2.0 s. Find vf.

What is the frequency of radiation whose wavelength is 0.84 nm? express the frequency in inverse seconds to three significant digits?