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answer all the sub parts of the question in detail
A firefighter who weighs 712 N slides down a vertical pole with an acceleration of 3.00 m/s2, directed downward. What are the
(a) Magnitude and
(b) Direction (up or down) of the vertical force on the firefighter from the pole and the
(c) Magnitude and
(d) Direction of the vertical force of the pole on the firefighter?
A train slows down as it rounds a sharp horizontal turn, going from 80.0 km/h to 58.0 km/h in the 13.0 s that it takes to round the bend. Compute the acceleration at the moment the train speed reaches 58.0 km/h
two blocks of masses m1 2.00 kg and m2 4.10 kg are released from rest at a height of h 4.90m on a frictionless track
A mass and spring are arranged on a horizontal, The spring constant is k = 570 N/m, and the mass is 5 kg. Find the velocity of the mass when it leaves the spring
The kinetic energy of an electron emitted from a 32P nucleus that beta decays into a 32S nucleus is observed to be 1.25MeV. What is the energy of the accompanying neutrino of the decay process
A closed tank is partially filled with glycerin. If the air pressure in the tank is 6 lb/in2 and the depth of glycerin is 10 ft, What is the pressure in lb/ft2 at the bottom of the tank
an electron has a mass 9.11x10-31kg of and a charge -e -1.60x10-19c . suppose electron moves in the vicinity of an
A liquid is flowing through a horizontal pipe whose radius is 0.0186 m. What volume flow rate will keep the pressures in the two horizontal pipes
A circular coil with 79 turns of wire and a diameter of 18 cm is placed in a magnetic field given by B(t) = 5 t2 + 2 t + 3 T where t is time in seconds. The field is perpendicular to the plane of the coil. What is the induced EMF at t = 7 s?
uranium has two naturally occurring isotopes. 238u atomic mass 238.0508 u has a natural abundance of 99.275 and 235u
A hanging titanium wire with diameter 0.13 cm is initially 2.4 m long. When an 85 kg mass is hung from it, the wire stretches an amount 1.26 cm. Find the approximate value of the effective spring stiffness
Gas is confined in a tank at a pressure of 1.21E+6 Pa and a temperature of 18.0°C. what is the new pressure in the tank
Its fuel provides the energy to accelerates the ship to a final speed of u; as a result, the ship's final mass mf = mi - Δm, where Δm is the mass of the fuel that is converted into kinetic energy.
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