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1. Does the shape of the balloon affect how far (or fast) the rocket travels?
2. Does the length of the straw affect how far (or fast) the rocket travels?
3. Does the type of string affect how far (or fast) the rocket travels? (try fishing line, nylon string, cotton string, etc.)
4. Does the angle of the string affect how far (or fast) the rocket travels?
A small circular object with mass m and radius r has a moment of inertia given by I = cmr2. To what maximum height will it rise after leaving the ramp
A Brayton-cycle heat engine follows the cycle shown in the figure. The heat input from the burning fuel is 2.0 MJ per cycle. Determine the engine's thermal efficiency by explicitly
A sound wave from a police siren has an intensity of 116.9 W/m2 at a certain point; What is the intensity level of the sound wave due to the ambulance
A spool of thin wire rotates without friction about its axis. A man pulls down on a wire connected to an inner radius with force of 16.10 N. How long does it take to enlarge the angular velocity of the spool from 11.00 rad/s to 39.00 rad/s? Icm = ..
Alpha-particle scattering experiments using uranium (Z = 92) as the target material show that the alpha-particles experience a pure Coulomb repulsion, Estimate the radius of the uranium nucleus
A solid cylinder is mounted above the ground with its axis of rotation oriented horizontally. How much of the rope unwinds in this time interval
An LC circuit is built with a 20 mH inductor and an 8.0 microF capacitor. After what time is the capacitor fully charged
The star Sirius has a surface temperature of 9750 K and aradius 2.4 times larger than the Sun's. What is the ratio of the flux (energy per square meter persecond) emitted from the surface of Sirius to the flux emittedfrom the surface of the Sun?
A 19.3-g mass of gold in the form of a cube is 1 cm long on each side ( somewhat smaller than a sugar cube). What would be the length of the side of a cube having twice this mass of gold?
For the circuit to the below, consisting of three ideal batteries and three ideal resistors, calculate the current through point P. Let the sign of the current correspond to its direction, with "up" being positive.
(a) What are the factors and the treatments? How many subjects does the experiment require? (b) Outline a completely randomized design for this experiment. (You need not actually do the randomization.)
An unwary football player collides with a padded goalpost while running at a velocity of 7.50 m/s and comes to a full stop
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