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Question: 1. What are the fundamental quantities in mechanics?
2. What are the chosen units for the three fundamental quantities in the SI system, what are them in the British system ?
3. What is the current standard for each of the three fundamental units in the SI system?
4. Kinetic energy is defined a E= ½ mv2, where m is the mass of the object and v its speed. What are the SI units of energy?
5. What are the units of energy in the cgs system (a system where the three fundamental units are centime, gram, and second.
The Paschen series in the hydrogen emission spectrum is formed by electron transitions from ni > 3 to nf = 3. What is the longest wavelength in the Paschen series
A car travels 2.87 km in the x-direction, then turns left 59.7? to the original direction and travels an additional distance of 2.65 km. Calculate the x component of the car's net displacement
A supertrain of proper length 200 m travels at a speed of 0.9 times the speed of light (relative to the tunnel) as it passes through a tunnel having proper length 80 m. how much longer is the train than the tunnel
a charged drop with a mass of 0.25 g is levitated by an electric field directed away from the earth of 860 nc. what is
two blocks of mass m18.50 kg and m21.80 kg sit on a 38.0 angle incline.i assuming the incline is frictionless calculate
A 64.0-kg survivor of a cruise line disaster rests atop a block of Styrofoam insulation, using it as a raft. What total mass of survivors can the raft support
A body weighs 50 grams in air and 40 grams in water. How much would it weigh in a liquid of specific gravity 1.5? (A) 30 grams (B) 35 grams
sr-90 may be produced from an atomic bomb explosion. the half-life of sr-90 is 28.8 years. what fraction of the sr-90
Suppose a meteor of mass 3.40 1013 kg is moving at 31.0 km/s relative to the center of the Earth and strikes the Earth. What is the change in the angular speed of the Earth due to this collision
A person runs up a long flight of stairs in 10 seconds. If the person's weight is 500 N and the vertical height of the stairs is 20 meters, what is the person's power output
A long, straight wire carrying a current of 4.32 A is placed along the axis of a cylinder of radius 48.7 cm and a length of 2.10 m. Determine the total magnetic flux through the curved surface of the cylinder.
How much is the spring compressed by the brick and How much work did the FORCE OF GRAVITY do on the bag?
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