A wire consists of a circular loop of radius R = 0.10 m and two long, straight sections, as shown in the figure. The wire lies in the x-y plane with its center at the origin and carries a current of I = 7.0 A . a. Determine the magnitude and direction of the magnetic field produced at the...
The figure shows two 1.0 kg blocks connected by a rope. A second rope hangs beneath the lower block. Both ropes have a mass of 250 g. The entire assembly is accelerated upward at by force . What is the tension at the top end of rope 1? 11 N 22 N 9.3 N 26 N
a baseball is hit up at an initial velocity of 150m/s. What will be the baseball's speed when it hits the ground?
Unless otherwise stated, all objects are located near the Earth's surface, where = 9.80 . A gun is fired and a 58 bullet is accelerated to a muzzle speed of 100 .If the length of the gun barrel is 0.60 , what is the magnitude of the accelerating force? (Assume the acceleration to be...
State Newton s law of gravity. Atomic physicists ignore the effect of gravity within an atom. To see why, calculate and compare the gravitational and electrical forces between an electron and a proton separated by 10-10m. Not for sure how to plug this in I could use visal...
A rectangular corral of widths Lx = L and Ly = 2L contains seven electrons. What multiple of h2/8mL2 gives the energy of (a) the first excited state, (b) the second excited state, and (c) the third excited state of the system? Assume that the electrons do not interact with one another, and do not...
Atomic physicists ignore the effect of gravity within an atom. To see why, calculate and compare the gravitational and electrical forces between an electron and a proton separated by 10-10m. Not for sure how to plug this in I could use visal reference of how the formula should look like for...
The Fermi energy for a certain metal is 7.46 eV. For this metal at 886 K, (a) find the energy of the energy level whose probability of being occupied by an electron is 0.925. For this energy, evaluate (b) the density of states N(E) and (c) the density of occupied states No(E).
A clock maker wants to make two different pendulum clocks, one with a solid gold cube for the pendulum and one with a solid gold sphere for the pendulum. The gold cube will have a 1 cm edge while the gold sphere will have a 1 cm diameter. Will both pendulums have the same length arm? If they...
The minimum distance required to stop a car moving at 38.0 mi/h is 48.0 ft. What is the minimum stopping distance for the same car moving at 69.0 mi/h, assuming the same rate of acceleration
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1. Can you show me step by step how to solve this problem?:
- The Earth’s rate of rotation is constantly decreasing, causing the day to increase in duration. In the year 2000 the Earth takes about 0.548 s longer to complete 365 revolutions than it did in the year 1900.
- (a) What is the average angular acceleration of the Earth?
- (b) If this average acceleration remains constant, in what year will the Earths rotation come to rest?
2. I do not understand this Ideal Gas Law and Kinetic Theory question. Can you help me set it up?
- A spherical balloon is made from a material whose mass is 3.00-kg. The thickness of the material is negligible compared to the 1.5-m radius of the balloon. The balloon is filled with helium (He) at a temperature of 305-degrees K and just floats in the air, neither rising nor falling. The density of the surrounding air is 1.19-kg/m^3. Find the absolute pressure of the helium gas