External forces of gravity and air resistance
A 4.00-kg model rocket is launched, expelling 46.0 g of burned fuel from its exhaust at a speed of 590 m/s. What is the velocity of the rocket after the fuel has burned? Hint: Ignore the external forces of gravity and air resistance.
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The number of different musical ideas in the piece (can we say, for example, that there are two ideas A, and B? Or is there only one?) The timings (start and stop times) of the different sections of the piece. (Hint: Listen for changes in musica
A skier leaves the ramp of a ski jump with a velocity of 12.3 m/s, 12.4° above the horizontal. The slope is inclined at 48.6°, and air resistance is negligible. Calculate the distance from the ramp to where the jumper lands.
A sled weighing 1.0 X 10^2 N is held in place on a frictionless 20.0 degree slope by a rope attached to a stake at the top. The rope is parallel to the slope. What is the normal force of the slope acting on the sled?
A 10.0mL sample of vinegar, an aqueous solution of acetic acid (HC2H3O2), is titrated with 0.5062 M NaOH, and 16.58 mL is required to reach the equivalence point. What is the concentration of the acetic acid?
A projectile is shot from the edge of a cliff 140 m above ground level with an initial speed of 100 m/s at an angle of 37 degrees with the horizontal. Determine the time taken by the projectile to hit point at ground level.
Investigate: the official language movement (an important Hispanic American cultural interest) described on pp. 243 - 244 of the text by researching bilingualism in education and politics in the United States. Find 4 to 6 credible Websites or
If you use 6M HCl in place of 3M HCl in a molar volume of carbon dioxide experiment, what would be the consequence of this substitution?
A wheel rotating about a fixed axis has an angular position given by q = 3.0 - 2.0t3, where q is measured in radians and t in seconds. What is the angular acceleration of the wheel at t = 2.0 s?
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