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Does the geometry of distribution of multiple charges affect the electric field generated by the charge?
Lab report on ubiquity timed experiment with 6 plates of agar.I need explaination on the number of colonies formed when agar is exposeed to air at diferent time" "
A 5.25-kg ball of clay is thrown downward from a height of 2.79 m with a speed of 4.41 m/s onto a spring with k=1530 N/m. The clay compresses the spring a certain maximum amount before momentarily s
A cube of ice is taken from the freezer at -8°C and placed in a 100 g aluminum calorimeter filled with 298 g of water at room temperature of 20°C. The final situation is observed to be all
Red blood cells come in many "blood types" including type a, type b, type AB...... If blood is transfused, the recipient detects any new or "foreign" proteins. These blood type proteins are
The engineer of the high-speed train immediately applies the brakes. What must be the magnitude of the resulting constant deceleration if a collision is to be just avoided?
A 1-kg iron block is to be accelerated through a process that supplies it with 1 KJ of energy. Assuming all this energy appears as kinetic, what is the final velocity of the block?
As a result of his observations, Ole Roemer concluded that eclipses of Io by Jupiter were delayed by 22 min during a six-month period as the Earth moved from the point in its orbit where it is clos
1) Assume the diameter of the field of vision in your microscope is 2mm under low power. If one Bacillus cell is 2um, how many Bacillus cells could fit end across the field? How many 10um yeast cells
A plane flies from base camp to Lake A, 300 km away in the direction 36.9° south of east. After dropping off supplies it flies to Lake B, which is 260 km at 30.0° west of north from Lake A.
The cellular organelle of eukaryotic organisms which is responsible for photosynthetic activity is the
A cube of ice is taken from the freezer at -5.7 and placed in a 100 aluminum calorimeter filled with 306 of water at room temperature of 20.0 . The final situation is observed to be all water at 15
If the magnitude of the instantaneous velocity at t1 is v1 = 3 m/s, what is the instantaneous velocity v2 at time t2? Determine the magnitude of the instantaneous acceleration of the object at time t2
Discuss in detail how negative feedback works with the thyroid gland and its hormones
A 13 g bullet traveling 233 m/s penetrates a 2.0 kg block of wood and emerges going 175 m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet em
Describe neurotransmission and explain using relevent examples how it influence cognitive proccesses
Capacitors C1 = 6.11 uF and C2 = 1.54 uF are charged as a parallel combination across a 291 V battery. The capacitors are disconnected from the battery and from each other. They are then connected p
A "moving sidewalk" in an airport terminal building moves at a speed of v_0 and is of length L. A woman steps on at one end and walks at a speed v relative to the moving sidewalk.
Why is it not possible to really have a unicellular creature big enough to engulf small children and dogs?
A block with mass m = 0.35 kg is forced against a horizontal spring of negligible mass, compressing the spring a distance of 0.20 m (Fig. 7-25). When released, the block moves on a horizontal table
shows two blocks, each of mass m, suspended from the ends of a rigid weightless rod of length L1+L2 with L1 = 20 cm and L2 = 80 cm. The rod is held horizontally on the fulcrum and then released.
Every scientist that I know of maintains that it is impossible to escape the Second Law of Thermodynamics. But, if this is true, how is it possible for evolution to produce more and more complex organ
An airplane starting from airport A flies 470 km east, then 317 km at 57.3 degrees west of north, and then 492 km north to arrive finally at airport B. The next day, another plane flies directly fro
satellite is in a circular orbit about the earth (ME = 5.98 1024 kg). The period of the satellite is 3.70 104 s. What is the speed at which the satellite travels?
A sled weighing 1.0 X 10^2 N is held in place on a frictionless 20.0 degree slope by a rope attached to a stake at the top. The rope is parallel to the slope. What is the normal force of the slope