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A 2.15 kg pendulum bob on the string 1.50 m long, is free having a velocity of 3.75 m/s if the support string forms an angle of 37.5 degrees with the vertical. Determine the velocity of the bob at
When a sample which is having 9.00 g of metal is heated to 100.0 C, and dropped into the 20.0 mLs of water at the 25.00 C, the final temperature is 28.9 C.
The stamp collector is viewing a stamp having a magnifying glass held next to her eye. Her near point is 23 cm from her eye. (i) Determine the refractive power of a magnifying glass which consists o
Although we know the elements of one group have similar propriety from each other. So, why there are not any of hydrogen crystals ever? Explain why dose hydrogen hasn't the characterize of the meta
You drive in your car of 1200kg while driving you notice a sign which states warning flat level curve having radius 45m. Coefficient of static friction for all the tries u = 0.5 i) Determine the max
Poly (ethylene glycol) can be prepared from either ethylene glycol (alone) or ethyleneoxide (alone). Write a complete mechanism for both reactions and classify each one as being addition or condensa
Determine the numbers of moles of oxygen are required to react with the 1.6 moles of isopropyl alcohol, C3H7OH? Equation is 2 C3H7OH + 9 O2 --> 6 CO2 + 8 H2O
An object is in front of the spherical concave mirror having focal length 20 cm. The object is 16 cm from the mirror. What property does the image formed? Describe and sketch.
Authorities feared that dangerous air pollution might occur during the neutralization according to The Denver Post for April 4, 1983. Determine their major concern, considering the magnitu
A long thin wire which is coaxial with the cylinder carries a current of 18 A in the opposite direction. Determine the magnitude of the magnetic field:
If wheels (including tire) of the truck are 15 inches in radius, then how many revolutions will the wheel create in the hour if truck travels at the constant speed of 70 miles per hour?
Write down the expression for conservation of angular momentum in terms of m, v, the final velocity of the puck, and w angular speed.
The object is in front of the convex mirror. The image formed is what in which property? Describe your answer!
The polarizing axis of a polarizing sheet forms an angle of 30 degree from the vertical. The un-polarized light of intensity Io passes via the polarizing sheet. The intensity of the light after it
The boat travels 50 miles downstream in same time that it takes to go 30 miles upstream. Speed of boat in still water is the constant 40 miles per hour. Then, in mph, speed of stream is?
The average distance among the sun and the earth is around 1.5 x 10^8 km. Determine how long does it takes for the light to travel from the sun to the earth?
Supposing that there is no friction among the string and the glass tube, determine the mass of the weight hanger when the spinning prevents it from moving up or down?
The ball is initially spinning at 2π radians per second however slow down to 10% of the value in 2 sec. i) Determine how long does it take the ball to come to rest.
If ball always starts at the top and screen is 36cm tall, how high ball bounces after its eighth rebound? How far does ball travels before coming to rest (and new screen saver starts)?
The two parallel wires whose centers are 24.00 cm apart carry equivalent currents in opposite directions. Determine the inductance of a 80.00 cm length of such a pair of wires. The radius of each of
Calculate the difference in the chemical potential of benzene (component1) in toluene (component 2) at molar fractions x1=0.5and x1=0.1 at 25 deg C, assuming ideal solutions?
Four electrons are rotating about a proton making a square having a side R. Determine the linear speed, v, of the electrons. The mass of the electron is m, the charge on the electrons is –e, a
A second sample weighing 0.78 is also burnt and 0.878 grams of water is collected. In addition, the molecular weight is about 60 g/mole. A sample of unknown material containing C, H, and O is analyz
Physicist S. A. Goudsmith devised a process for measuring accurately the masses of heavy ions by timing their periods of revolution in a specified magnetic field.
Determine the exactly concentration of the NaOH titrant? 0.3043 g of pure KHP was weighed out and titrated to an end pint with the 15.12 mL. Of a NaOH solution that was approximately 0.1 M.