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A meter stick is supported on a fulcrum at the 17 cm mark. A 0.70 kg object is hung from the zero end of the meter stick, and the stick is balanced horizontally. What is the mass of the meter stick?
Two forces act on a 3.4 kg box. One of the forces is known to be F= 5.5 N. The acceleration is measured to be A= (-1.9i - 2.7j ) m/s2. Find the second force as a magnitude and direction
Two astronauts are, 3.18 m apart in their spaceship, speaking to each other. How far away from the Earth is the spaceship?
A glass plate having parallel faces and a refractive index of 1.54 lies at the bottom of a liquid of refractive index 1.62. Compute the angle of refraction of this light in the glass
A 5.50 g bullet moving at 688 m/s strikes a 860 g wooden block at rest on a frictionless surface. What is the resulting speed of the block
A rock with mass m = 3.70 kg falls from rest in a viscous medium. The rock is acted on by a net constant downward force of F = 19.3 N and by a fluid resistance force.
When the displacement of a mass on a spring is 0.445 of the amplitude of its oscillation, what fraction of the mass's energy is kinetic energy
A car driving directly north on the freeway at a speed of 110 km/h and a truck is leaving the freeway driving 85 km/h in a direction 35 west of north
A cylindrical buoy of diameter 35 cm floats upright in the water and is submerged to a depth of 1.85 m. What volume of water does the buoy displace
The work function of a particular substance is 4.15 × 10-19 J. What is the photoelectric cutoff wavelength for this material
t a certain location, Earth has a magnetic field of 0.60 10-4 T, pointing 75° below the horizontal in a north-south plane. If the current is directed horizontally toward the east, what are the magnitude and direction of the magnetic force on the wire
A cube is constructed of six copper plates joined at the edges by an insulating material. find the electrical potential in the center of the cube
A solid wood door 1.00 m wide and 2.00 m hight is hinged alone one side and has a total mass of 40.0 kg, whats the final angular speed of the door
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