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The following graph protrays the distribution of the number of biggie-sized soft drinks sold at a nearby wendy's for the last 141 days. the mean number of drinks sold perday is 91.9 and the standard deviatin is 4.67. if we use the empirical rule, sales will be between what two values of 68 percent of the days? Sales will be between what two values on 95 percent of the days?
Three air carts have masses, 4m,2m and m. the most massive cart hasan initial speed of Vo; the other two carts are at restinitially. All carts are equipped with spring bumpers that giveelastic collisions.
A 15 V battery drives a current through a 36 Ω resistor and a 14 Ω resistor. Determine the voltage drop across the 14 Ω resistors
Calculate the moment of inertia and the rotational kinetic energy for the following objects spinning about a central axis
A Gas of diatomic molecules is in equilibrium at a temperature of 340 K. Assuming that the rotational inertia of the molecule is 2.5 x 10-40 kg•m2, Determine the mean angular momentum of the molecules
Find the acceleration of a forklift of mass 1400 kg pushed by a force of 2100 N that is opposed by a frictional force of 425 N.
A spherical surface completely surrounds a collection of charges. Find the electric flux (with its sign) through the surface if the collection consists of (a) a single +1.90 × 10-6 C charge, (b) a single -2.40 × 10-6 C charge, and (c) both of the ..
What is the radiation pressure (force/area) of a laser pointer on a heavy, highly absorbing surface? Assume that the laser has an output power of 1mW, a wavelength of 600nm, and a beam radi- us of 1mm. To do this problem, first compute the number ..
What is the velocity of a beam of electrons that go undeflected when passing through perpendicular electric and magnetic fields of magnitude 8.8 x 10^3 V/m and 3.5 x 10^-3T respectively
Infrared spectra are used by chemists to help identify an unknown substance. Atoms in a molecule that are bound together by a particular bond vibrate at a predictable frequency, and light at that frequency is absorbed strongly by the atom.
On earth, two parts of a space probe weigh 14000 N and 3500 N. These parts are separated by the center-to-center distance of 8m and may be treated as uniform spherical objects. Find out the magnitude of the gravitational force that each part exerts o..
A diffraction grating is illuminated first by red light of wavelength 600 nm and then with light of an unknown wavelength. The fifth-order maximum of the unknown wavelength is located precisely at the third-order maximum of the red light. What is the..
Blood from an animal is placed in a bottle 2.0m above a 3.5cm long needle, of inside diameter 0.40mm , What is the viscosity of this blood
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