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What kind of microscope would you use to view ribosomes in a prokaryotic cell? What about to view the outside surface of a eukaryotic cell? Couldn't you use a compound light microscope?
A child throws a penny off of the Eiffel tower (h = 324 m) with a downward velocity of magnitude V0 = 11 m/s.Calculate the time t, in seconds, that it takes for the penny to fall .t = ____ Find the speed at which the pen ...
Q1. Determine the Nusselt number for fully developed flow and temperature profile in a plane duct (i.e. between two large parallel plates; see Fig. P5.2) for the case of the same constant wall heat flux in both walls Q2. ...
If a scale is under water in a pool and an object is placed on the scale, which force is the scale reading?
The density of an object equals its mass divided by its volume. The mass of Earth is 6 × 10 24 kg and its radius is 4 × 10 3 miles. The mass of the Sun is 2 × 10 33 g and its radius is 7 × 10 5 km. Calculate the Eart ...
A vibrating system consists of a mass 200kg, a spring of stiffness 80N/m and a damping coefficient of 800Ns/m. Determine the frequency of vibration of the system.
The roof of a two-story house makes an angle of 29° with the horizontal. A ball rolling down the roof rolls off the edge at a speed of 4.5 m/s. The distance to the ground from that point is 8.2 m. (a) How long is the bal ...
A bus travels 240 km south along a straight path with an average velocity of 90 km/h to the south. The bus stops for 24 min, then it travels 220 km south with an average velocity of 74 km/h to the south. How long does th ...
Suppose that a Stop-and-Wait ARQ system has a time-out value that is less than the time required to receive an acknowledgment. Sketch the sequence of frame exchanges that transpire between two stations when station A sen ...
Neil travelled 36km at a speed of 8km/h. Grant travelled 48km at a speed of 10km/h. Whose journey was quickest? By how many mins?
Sarah and Joe are training for an archery contest. Sarah is very precise but very inaccurate while Joe is very imprecise but very accurate. What would Sarah have to do to improve her sharp shooting skills? What would Joe ...
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