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the merry-go-round of m mgr = 250 kg, r mgr = 1.5 meters is rotating having an angular velocity of 15 radians/sec, the girl gets up and walks tp the very center of the merry-go-round, determine the
Explain how much of calcium chloride (CaCl2, MW= 111g/mole) are needed to prepare 2000 ml of a solution with the same equivalent concentration of Ca2+ to human plasma.
A uniform cylinder having radius R and mass M is mounted so as to rotate freely about a horizontal axis which is parallel to, and a distance h from the central longitudinal axis of the cylinder. i)
What weight of water would be essential to carry over 1 g of toluene if a mixture of toluene and water is distilled at 97 degrees Celsius?
When the above wheel is rotating at the angular velocity of 15 rad/s, a torque is exerted to stop the wheel above an angular displacement of 45 radians, determine the magnitude of the exerted torque
An ideal solution which is having of 9.0 g of liquid Y, whose molar mass is 30.0 g/mol and 10.0g of liquid X, whose molar mass is 50.0 g/mol. The vapor pressure of pure X and pure Y at 20 degrees Ce
By using the information from the above question, supposing the cylinder begins at rest, determine the angular velocity after going one revolution?
A ground-state H atom absorbs a photon of wavelength 94.91 nm, and its electron attains a higher energy level. The atom then emits two photons: one of wavelength 1281 nm to reach the ground state an
If the same amount of energy were impaired to a ball the same size as a tennis ball, but of twice the mass, how height would it go in comparison to the tennis ball?
Assume that $808 is invested at 7.78% compounded continuously. How much is in account after seventeen years? Round the answer to the nearest cent.
A cell membrane consists of a resistance and a capacitance and therefore a characteristic time constant. Determine the time constant of an 8.1 nm-thick membrane surrounding a 4.2 x 10-2 mm-diameter
An iron nail is pulled off a magnet. A positively charged particle moves in a circle at fixed distance from a negatively charged particle.
Determine the function which models revenue in terms of ticket price. (Let x be ticket price and R(x) be revenue.). Determine price which maximizes revenue from ticket sales.
A motorcycle, which consists of an initial linear speed of 6.3 m/s, decelerates to a speed of 1.9 m/s in 5.1 s. Each and every wheel consists of a radius of 0.70 m and is rotating in the counterclo
An ideal solution which is having of 3.25 mol of toluene and 5.00 mold benzene is placed in a cylinder and piston assembly. At 298 k, the vapour pressure of the pure substances are P (benzene)= 96.4
You wish to form a spring-weight combination with a one second period. Your spring stretches .52 meters if you suspend a 1.1 Newton weight on it. Determine how many kg you should utilize for the mas
Suppose that you are given a 0.500 M sodium acetate solution and a 0.700 M acetic acid solution. Calculate the volume of each solution needs to prepare 160mL of a buffer with pH 4.65.
Methane, CH4 has a much lower boiling temperature than does water (H2O). Explain why this is true in terms of the bonding between molecules in each of these two substances.
Determine how many feet long must a pipe with two open ends be so the harmonic just higher than the fundamental is 2,800 Hz? Suppose that the velocity of sound is around 340 f/s.
Oxygen and hydrogen join to form water. When the original volume was 9.1 cubic meters determine what the new volume is?
When you hear a frequency of 130+17 Hz determine how fast is the slithered slithering toward you (in m/s)? The speed of sound is around 300 m/s.
If she increases the price by x dollars, then price will be dollars, number of sales for the day will be necklaces, and her cost to make necklaces for day will be dollars.
When you weigh 180 lb, determine how many feet can you walk out on the pole to rescue a mass-less cat trapped at the end of the pole?
You plan to begin your motorcycle by running up to it, jumping on, and by employing your combined speed to begin the engine. Determine how many f/s should you be going when you run up if the final v
Suppose that a solid iron asteroid which is having 4.00 km in diameter strikes the Earth near the middle of the Pacific Ocean at a speed of 5.00×104 km/hr.