jameson

This page lists questions and answers that were posted by visitors named jameson.

Questions

The following questions were asked by visitors named jameson.

A gun shoots bullets that leave the muzzle with a speed of 341 m/s. If a bullet is to hit a target 171 m away at the level of the muzzle, the gun must be aimed at a point above the target. How far above the target is this point?
13 years ago
A stone is aimed at a cliff of height h with an initial speed of v = 60.0 m/s directed 25.0° above the horizontal, as shown in the Figure below by the arrow. The stone strikes at A, 4.30 s after launching. What is the height of the cliff?
13 years ago
Two blocks with masses M1 = 3.9 kg and M2 = 5.0 kg are connected with a massless string over two massless and frictionless pulleys, as shown in the Figure. One end of the string is connected to M1 while the other end is fixed. What is the acceleration of...
13 years ago
Three blocks are located on a horizontal frictionless table. They are connected by a massless cord, as shown in the figure, and pulled to the right. The masses of the three blocks are m1 = 22 kg, m2 = 21 kg, and m3 = 33 kg. The pulling force is equal to T...
13 years ago
Two blocks m1 = 9.1 kg and m2 = 5.6 kg are connected by a homogeneous rope that has a mass of mr = 1.50 kg. A constant vertical force, F = 193.0 N, is applied to the upper block. What is the magnitude of the acceleration of the system?What is the magnitud...
13 years ago
find the triple scalar product u . (v * w) for the vectors u= (5, 9, -6) v= (5, 8, -1) w= (-2, 8, 3)
9 years ago
find the area of the parallelogram that has vectors as adjacent sides u = -2i +j +5k v = 4i -3j -3k
9 years ago
find the equation to the tangent line of the parabola given by x^2=2y at point (3, 9/2)
9 years ago
What happens during the intake stroke of a four-stroke internal combustion engine? A. The piston moves downward, creating a partial vacuum that draws in air and fuel. B. The piston moves downward as a result of the air/fuel mixture doing work on it. C. Th...
9 years ago
A graph of experimental data is a straight line when ln[H2] is plotted versus time. Which rate law fits the data? A. Rate = k(ln[H2]) B. Rate = k/[H2] C. Rate = k[H2] D. Rate = k[H2]2 I think A as it fits the constant for a straight line. what do you thin...
9 years ago
Which rate constant would result in the fastest reaction? A. 1.3 × 10^3 L/mol · s B. 2.8 L/mol · s C. 9.5 × 10^-2 L/mol · s D. 4.2 × 10^-3 L/mol · s i think that it is answer c as it has the highest values plus a negative exponent
9 years ago
What is constant about the equilibrium constant? A. The reversibility of the reaction at equilibrium is constant. B. The ratio of products to reactants at equilibrium is constant. C. The concentrations of products present at equilibrium are constant. D. T...
9 years ago
If it takes 30 seconds for a reactant concentration to decrease from 1.0 M to 0.5 M in a first-order chemical reaction, then what is the rate constant for the reaction?
9 years ago
Which statement is true about a reaction at equilibrium? A. The reaction is not reversible. B. The reaction concentrations of the reactants and products are always equal. C. The reaction rates of the forward and reverse reaction are always equal. D. The c...
9 years ago

Answers

The following answers were posted by visitors named jameson.