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A hotel elevator ascends 160 {rm m} with a maximum speed of 4.5 {rm m/s}. Its acceleration and deceleration both have a magnitude of 1.3 {rm m/s^2}. How long does it take to make the complete trip
You burn 0.0956 g of the compound and isolate 0.1356 g of CO2 and 0.0833 g of H2O. What is the empirical formula of the compound?
What minimum mass of water (in {rm g}) has to evaporate to absorb 173 {rm kJ} of heat?
If the height of the water slide in Figure 8-26 is h = 3.4 m and the person's initial speed at point A is 0.52 m/s, what is the new horizontal distance L between the base of the slide and the splas
List the solutions in order of increasing basicity: nh2oh, c2h5nh2, nano2
When a 58 g tennis ball is served, it accelerates from rest to a speed of 45 m/s. The impact with the racket gives the ball a constant acceleration over a distance of 44 cm. What is the magnitude of
What is the electron geometry of SBr4 What is the electron geometry of SBr4
A 20.00mL sample H3Y was titrated with 0.1000 M NaOH. The first equivalence point was reached after the addition of 14.98 mL of base. The second equivalence point was reached after the addition of
Using curved arrows to symbolize the flow of electrons, propose a mechanism for the transformation of 3-nitrophthalic acid to luminol?
What effect does initial concentration seem to have on the percent dissociation?
A daredevil on a motorcycle leaves the end of a ramp with a speed of 28.0 m/s as in the figure below. If his speed is 26.4 m/s when he reaches the peak of the path, what is the maximum height that h
In a calorimeter, 10 g of ice absorbs heat with an enthalpy of fusion of 334 J/g. What is the heat absorbed?
If a 0.0200 M solution exhibits 50.0% transmittance, what will be the percent transmittance for a 0.0400 M solution of the same substance measured at the same wavelength?
Suppose that a sample of gas occupies 192 mL of volume at 25C and a pressure of 206 torr. What would be the volume if the pressure were changed to 506 torr at 25C?
The mass of the first block is 1224 g, and its velocity is +0.685 m/s after the bullet passes through it. The mass of the second block is 1555 g. (a) What is the velocity of the second block after t
If 43 g of hot water at 85°C is poured into a cavity in a very large block of ice at 0°C, what will be the final temperature of the water in the cavity?
Calculate the standard cell potential (E^circ) for the reaction rm X {(s)}+ rm Y^{+}{(aq)} rightarrow rm X^{+}{(aq)}+ rm Y {(s)}
Which of the following alkenes can exhibit cistrans isomerism?
A toy train is pushed forward and released at = 2.0 with a speed of 1.5 . It rolls at a steady speed for 2.8 , then one wheel begins to stick. The train comes to a stop 5.6 from the point at which i
Draw the skeletal structure of one of the enantiomers (that means you have to show wedge/dash bond(s)) formed when (Z)-3-methyl-2-pentene reacts with Br2 in the presence of water.
What is the molar solubility of NiS in 0.10 M NH3?
Estimate the value of the equilibrium constant at 610K for each of the following reactions delta H and delta S for BrCl(g) is 14.6 kj=J/mol and 240 J/(mol*K) respectively
The coefficients of static and kinetic friction between a 67 kg box and a horizontal surface are 0.56 and 0.32, respectively.
A 15 g bullet traveling at 485 m/s strikes a 0.9 kg block of wood that is balanced on a table edge 0.7 m above ground. If the bullet buries itself in the block, find the distance D at which the blo
The block, of mass 1.14 kg, is subject to no horizontal external forces during the collision with the bullet. After the collision, the block is observed to move at a speed of 4.50 m/s. How much kin