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A 0.10kg dart is fired horizontally at the center of a 0.80kg vertically hanging block, sticking to it. The system reaches a maximum height, h, of 0.20m above the collision point. Find: a) the velo
Using a calculator, determine the other angle and the remaining sides of the triangle. Express your answers using at least three decimal places.
Calculate the fraction of the principal species in the solution by mixing 0.1M leucine and 0.1M NaOH, and the pH of that solution.
Using energy conservations, how would your calculated final velocity change if you threw a ball off a building straight downward at the same speed as you threw it upward? Explain/give an example.
If the angles of depression from the top of the antenna to each of the posts is 42^o and 40^o respectively, then the distance between the two posts is______atleast three decimal places.
A mixture of 60 mol% n-propylcyclohexane and 40 mol%n-propylbenzene is distilled through a simple distillation apparatus; assume that no fractionation occurs durng the distillation.
If a dielectric is inserted between the plates of a parallel-plate capacitor that is connected to a 100-V battery, which decreases? The electric field between the plates decrease, voltage across cap
A person starts walking from home and walks: 4 miles East. Find the total displacement vector for this walk. If this person walked straight home, they'd have to walk.
What is the vacuum wavelength ? vacuum in the visible range (380 nm to 750 nm) at which destructive interference causes the film to look dark in reflected light?
A potential difference of 120 V produces a current of 8.0 A in the heating element of a toaster. What is the resistance of this heating element while the toaster is carrying this current?
A solution of 1.00 g of a protein in 20.0 ml of water has an osmotic pressure of 35.2 torr at 298 K. Calculate the molar mass of the protein.
A 5.00-kg steel ball is dropped onto a copper plate from a height of 10.0 m. If the ball leaves a dent 3.20 mm deep, what is the average force exerted by the plate on the ball during the impact?
What is the molarity of a solution of NaOH if 38.6 mL of the solution are titrated by 1.00 g of oxalic acid dihydrate?
A block of mass 0.80 kg is suspended by a string which is wrapped so that it is at a radius of 0.054 m from the center of a pulley. The moment of inertia of the pulley is 0.0040 kg·m2.
A chemist has two large containers of sulfuric acid solution, with different concentrations of acid in each container. What are the concentrations of sulfuric acid in the original containers?
A 500 watt heater is used to heat water in a plastic bucket. Assume that 90% of the heat produced by the heater goes into heating the water. How long does it take for 2 kg of water at 100 degrees C
What is the lowest price at which the item would be supplied? How many rings will be supplied if the unit price is P 4,600?
In zinc at room temperature, the mobility of mobile electrons is about 1.6 multiplied by 10-3 (m/s)/(V/m), and there are about 6.6 multiplied by 1028 mobile electrons per m3. Calculate the conductivit
State Realty Corporation handles an apartment complex consisting of 100 units. What is the maximum monthly rental for each apartment unit?
A calorimeter contained 75.0 g water at 16.95 degrees C. A 93.3 g sample of iron at 65.58 degrees C was placed in it, giving it a final temperature of 19.68 degrees C for the system.
Find the vertex, focus and directrix of the proabola. Sketch the graph, showing the focus and the directrix. If you can graph please do so.
The structure of O-aminobenzoic acid can be determined by titration with 0.2M sodium hydroxide. How many mL of base would be needed to neutralize 0.5 g of starting material?
If the width is somewhere in between 3 and 20 feet, what dimensions of the rectangle maximize the area enclosed in the fence?
A 500 watt heater is used to heat water in a plastic bucket. Assume that 90% of the heat produced by the heater goes into heating the water. How long does it take to heat 2 kg of water from 25 degre
The equation of the line perpendicular to this line going through (a + 4, b + 6), Are the lines is equations of perpendicular to each other, or parallel?