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The spring constant is 1700 N/m, and they can compress the spring a maximum of 28 cm. All the rocks on the island seem to encompass a mass of 410 g. Determine with what speed does the rock depart th
During an episode of smog, the outdoor concentration of PAN is 75 ppb. A home has volume = 400m^3 and an infiltration rate of 0.3 air changes per hour.
From the rectangular piece of cardboard having dimensions 30 multiplied by 40, the open box is to be made by cutting out identical squares of area x2 from every corner and turning up sides.
Suppose that your mass is 71 kg. After a long hesitation, you dive off the bridge. Explain how far are you above the water if the cord reaches the utmost elongation?
The incident water stream consists of a velocity of +18.0 m/s, whereas the exiting water stream consists of a velocity of -18.0 m/s. The mass of water per second which strikes the blade is 10.0 kg/s
Explain the final volume, temperature and the work done where a sample consisting of 1.00 mol of prefect gas diatomic molecules initially at 310 K and 3.25 atm. This undergoes reversible adiabatic
From the distance of 43 feet from base of the building angle of elevation to top of building is 63°. Find height of building to nearest foot.
A rod of aluminum-alloy consists of a length of 10.000 cm at 20.000oC and a length of 10.015 cm at the boiling point of water. (i) Determine the length of the rod at the freezing point of water?
The pendulum of length 14.0 inches swings 4°21' to each side of vertical position. To nearest hundredth of the inch, find length of arc through which end of pendulum swings?
The population of the small country increases according to function B = 1,600,000e^0.03t, where t is measured in years. How many people will country have after one year?
Determine the numbers of iron atoms are within a unit cell when the metallic iron crystallizes in a cubic lattice and the unit cell length is 287pm. the density of iron is 7.87g/cm^3.
In both formulas x is year, where x=0 corresponds to september 1998. Suppose these trends continue, evaluate year when population of west goma will equal population of east goma.
A volley-ball is spiked so that its incoming velocity of +4.0 m/s is modified to an outgoing velocity of -20 m/s. The mass of the volley-ball is 0.42 kg. Determine the impulse which does the player
Explain how long will reaction take for1/8 the reactant concentration to drop the initial value of reactions because some certain have the first-order reaction which is having a rate constant of 2.
A jogger of 85 kg is heading due to east at a speed of 2.5 m/s. A jogger of 55 kg is heading 30° north of east at a speed of 3.9 m/s. Determine the magnitude and direction of the sum of momentum
Calculate the rate constant of a first-order reaction which has 7.70 minutes for the reactant concentration to drop to half of its initial value?
Avoid the weight of the ball, as it is so much less than the force of the bat. Select the direction of the incoming ball as the positive direction.
When the rate constant of a reaction given 8.90×10-4 s-1 then determine the half-life of a first-order reaction. Explain in detail.
A golfer, driving a golf ball off the tee, provides the ball a velocity of +39 m/s. The mass of the ball is 0.045 kg, and the period of the impact with the golf club is 3.95 x 10^-3 s. (i) Determin
When the man pushes downward on the box at an angle of 30, determine the maximum mass of the box he can move?
When the plate is made from glass of refractive index n = 1.52, determine the smallest possible plate width?
Spring has the stiffness constant k = 9450 lb/ft and should be able to stop the 4000-lb car traveling at 25 mph. Determine least compression required of spring?
An air-filled parallel-plate capacitor consists of plates of area 2.1 cm2 separated by 1.11 mm. The capacitor is joined to a 26.0 V battery. Determine the charge on the capacitor?
A heat engine employing 3.5 g of helium gas is initially at STP. The gas goes through the following closed cycle: Determine how much work does the engine do per cycle?
At instant if the center of the disk has moved a distance x = 0.13 m, a length d = 0.26 m of string consists of unwound off the disk. i) At this instant, determine the speed of the center of mass of