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determine the maximum height attained by the 2.1-kg mass
A 0.43 Tesla magnetic field is perpendicular to a circular loop of wire with 52 turns, what is the magnitude of the induced emf in Volts
A slingshot consists of a light leather cup containing a stone. The cup is pulled back against two parallel rubber bands. With what speed does the stone leave the slingshot
008 10.0 points A length of metal wire has a radius of 0.006 m and a resistance of 0.08 ?. calculate the density of free electron in the wire
003 10.0 points A wire is made of a material with a resistivity of 1.72779 × 10^ ?8 ? · m. estimate the resistance of the wire?
A Na+ ion moves from inside a cell, where the electric potential is -68 mV, to outside the cell, Does its energy increase or decrease
A charge of +q is located at the origin, while an identical charge is located on the x axis at x = 0.49 m. Where should the third charge be located?
Four point charges have the same magnitude of 7.60 *10^-12 C and are fixed to the corners of a square that is 2.0 cm on a side. Determine the magnitude of the net electric field that exists at the cen
How should a leader employ the theory of variation to accomplish this - What role does variation play in leadership?
a child swings a mass on a string in a horizontal circle 1.2 meter off the ground. The string has a length of 0.6 meters, how far will the mass travel before it lands
A Carnot engine extracts 850 J from a 600 K reservoir during each cycle and rejects 450 J to a cooler reservoir. Find the temperature of the cool reservoir
Two point charges lie along the y axis. A charge of q1 = -12.0 µC is at y = 7.0 m, find the point at which the total electric field is zero
A weight is suspended from two ropes, one of which makes an angle #1 = 35 degrees and angle 2 = 155 degrees measured form the horizontal, Find the tension in each of the two ropes
An ice skater is rotating at 3.4rev/seconds while her arms are beside her. The moment of inertia of the skater is 5kg x m^2. what is her new angular velocity
Water having a density of 1000kg/m^3 is flowing with a velocity of 3 m/s through a pipe. Determine the water velocity at the restriction
In frozen Minnesota the Winter Sports Carnival includes some unusual events. Since it is dangerous to run on ice, each runner runs on ice, With what speed does the crowd see the woman moving
A 100 kg running back is moving with a speed of 4.0m/s. What average force must be applied to stop him in 0.25 s
A 1100 kg car increases it speed from 40 km/hr to 60 km/hr in 5 seconds. What is the resultant work done on the car
A railroad locomotive with a mass of can exert a force of. At what rate can it accelerate when pulling a train
A hanging copper wire with diameter 1.4mm (1.4e-3m) is initially 0.95 m long. Find the approximate value of the effective spring stiffness of the inter atomic force
A 65- person stands on a scale in a moving elevator while holding a 5.0 mass suspended from a massless spring with spring constant 1.10. What is the reading of the scale on which the person stands
A chair of weight 75.0 lies atop a horizontal floor; the floor is not frictionless. Using Newton's laws, calculate , the magnitude of the normal force that the floor exerts on the chair
A block of mass 6 kg, which has an initial speed of 3 m/s at time t = 0, slides on a horizontal surface. obtain the magnitude of the acceleration of the block
An alpha particle (the nucleus of a helium atom, with charge +2e and a mass four times that of a proton), What is the speed of the antiproton when the particles are 1.1nm apart
The load and the spring are taken down. Two people pull in opposite directions on the ends of the spring, each with a force of 206 N. Find the length of the spring in this situation