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The two angled ropes employed to support a crate can withstand a tension of 1500 N before they break. Determine the biggest mass the ropes can support? Angle 1 = 55 and angle 2 = 35.
Describe the function of the acetic acid if in a dry 100ml conical flask dissolves 3.2g of acetanilide in 5mlof glacial acetic acid by warming gently on the steam bath.
Determine the potential difference needed to accelerate protons from rest to 10% of the speed of light.
From the point 48 feet from base of the redwood tree, angle of elevation to top of tree is 56.3degrees. Determine height of tree to nearest tenth of the foot.
A block of 5.5 kg slides down a frictionless incline making the angle of 70.0° with the horizontal. (i) Determine the net work done on the block if the block slides 1.7 m (measured all along the i
The projectile is launched from the platform 20 feet high with the initial velocity of 144 feet per second, height h of projectile at t seconds after launch is provided by h = -16t^2 + 144t + 20 fee
Employ vector components to determine the magnitude of each of such pulls and the direction of the smaller pull. Suppose that the smaller pull consists of a component directed to the north.
Determine the pH of a mixture of 0.3 M carboxylate ion (COO-) and 0.8 M carboxylic acid (COOH). The pka of carboxylic acid is 2.76.
The spheres encompass a combined charge of +55μC and repel one other having a force of .75 N. Determine the surface charge density on each and every sphere?
i) Assume that the coal is piled up in an 11.0 m x 15.0 m room. Determine how tall should the pile be to operate the plant for one day? ii) Determine the thermal efficiency of power plant?
Throughout each cycle a reversible engine absorbs 2500 J of heat from the high temperature reservoir and performs 2200 J of work. Find out the ratio Th/Tc of the two reservoir temperatures?
Temperature T of soda t minutes after it is placed in refrigerator is provided by T(t) = 36+54e^-0.058t. Determine temperature of soda 12 minutes after it is placed in refrigerator.
The monatomic ideal gas is held in a thermally insulated container having a volume of .075 m^3. The pressure in the gas is 105 kPa and the temperature is 317 K. At what volume will the gas encompas
A system comprises of 2.5 mol of the ideal monatomic gas at 325 K. Determine how much heat should be added to 2.8 mol of an ideal monatomic gas at (i) constant pressure and (ii) constant volume.
Throughout the adiabatic process, the temperature of 3.92 moles of a monatomic ideal gas falls from 485 C to 205 C. For this gas, determine the change in the internal energy.
Points (2, -3) and (6, -1) are endpoints of diameter of the circle. Determine exact length of diameter? (Simplify as much as possible)?
Suppose through the reactor half the reactants are consumed in each pass. The distillation produces a stream of methanol with 1% CO. The recycle stream have 5% methanol.
Find (i) the average normal stress in the tube and in rod, (ii) deformations of the tube and of rod.
A fire extinguisher for home use is made of steel cylinder of 550mL having water and carbon dioxide. The extinguisher weighs 1.54kilograms empty and 2.53 kilograms when fully filled by the gas mixtu
Analyze the wavelength of a photon required to excite a transition among its neighboring vibrational energy levels. A hydrogen atom is absorbed on the surface of a gold nano-particle by a bond forc
The atomic radius for the element neon is 7.0 x10^1 pm. The area of the head of an average flat-headed straight pin is 3.50 x 10 ^-4 in^2. Determine the number of neon atom scan fit across the diame
The phosphoric acid and phosphorous acid have essentially the same value of Ka and the sulphuric acid has a Ka 10,000 times which is greater than the Ka of sulfurous acid. Discuss in terms o
Describe the structure of the compound when the compound Na2 (crypt) has been prepared. Discuss what is the unusual about this compound?
Explain how close are the two dislocations when the mobile one stops? Consider two parallel edge dislocations of the same sign on parallel glide planes, which is having five Burgers vectors apart.
Water wheel rotates through angle 0, water level L behind wheel changes according to equation L = 1 - sin0 - sin^2 0 where L is measured in inches.