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Two boxes are placed at opposite ends of a 3.0 m long board. The board is supported underneath by a fulcrum. The box on the left has a mass of 25kg, and the box on the right has a mass of 15 kg. Ig
What are some annelids that can be found in louisiana?
If solution A has a pH of 5 and solution B has 100 times the hydrogen ion concentration of solution A, what is the pH of solution B?
What is the relationship between x-ray beam quality and signal to noise ratio and contrast to noise ratio (independently). Direct literature evidence is required to support the answer.
Describe all major structures you pass by or through. You arrive at the lung, describe what you see and narrates how the body combats invading bacterium. Address both specific and nonspecific immunity
An astronomer at the equator measures the Doppler shift of sunlight at sunset. From this, she calculates that Earth's tangential velocity at the equator is 465 m/s. The centripetal acceleration at
Roger has arthritis and has been taking prednisone ( a glucocorticoid) at prescribed levels for tow months. He isn't feeling well and complains of repeated colds. hi is puffy (edematous). explain the
A short description on what happens during the prophase
A small plastic ball of mass 5.60 × 10-3 kg and charge +0.220C is suspended from an insulating thread and hangs between the plates of a capacitor (see the drawing). The ball is in equilibrium
Viruses have some of the properties of living organisms. Which of the following is a characteristic of all organisms, but NOT of viruses?
A powerful bolt of lightning can carry a current of 225 kA. If two such bolts strike simultaneously at a distance of 29 m from each other, what is the magnetic force per meter exerted by one bolt o
What role does genetics play in the variation seen in this leafhopper population?
Describe the parental cross you received; use genetic symbols.
An electron moves in the xy plane with a speed of 3.75 x 106 m / s at an angle 600 with the x-axis 300 and the axis. A magnetic field of 0.85T is in the positive direction of axis y. Find the magne
A beam of light with red and blue components of wavelengths 670 nm and 425 nm, respectively, strikes a slab of fused quartz at an incident angle of 30o. On refraction, the different components are
A model airplane is pushed by its engine with force F1: 16N due north while at the same time the wind pushes the airplane with force F2: 12.0 N at 50 degrees east of north" Calculate the magnitude o
A car starts driving at a speed of 5.833 m/s and speed up to a speed of 20 m/s. If the acceleration of the vehicle is 2.45 m/s/s how long did this take?
What is the net upward force on an airplane wing of area 20.7 m2 if the speed of air flow is 232 m/s across the top of the wing and 215 m/s across the bottom? (The density of air where the airplane
What is the relationship among ribosomes, endoplasmic reticulum, golgi apparatus and the plasma membrane? How do they work together in the system?
An aquarium contains a 5-cm layer of water (n = 1.33) floating on top of carbon tetrachloride (n = 1.461). If the angle of incidence into the water from the air is 30?, what is the angle of refract
A hornet circles around a pop can at constant speed once per second in a path with a 14-cm diameter. We can conclude that the hornet's wings must push on the air with force components that are:
Ampicillin, Novobiocin, and Penicillin. For each, Briefly state how the antibiotic acts on the cells to kill or inhibit them, and what species or group of species is targeted. Word Limit: one sentence
At room temperature what is the strength of the electric field in a 6-gauge copper wire (diameter 4.12 mm) that is needed to cause a 1.73-A current to flow?
What organism is most similar to the sandhill crane, grus canadensis
An excited atom can be release it's energy by emission of photons, such as X-rays or by emission of