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A 50 kg woman balances on one heel of a pair of high-heeled shoes. If the heel is circular with radius 0.516 cm, what pressure does she exert on the floor?
Determine the magnitude of the velocity of the 2.6-kg fragment immediately after the explosion.(b) Find the distance between the point of firing and the point at which the 2.6-kg fragment strikes the
When the wood cube attains hydrostatic equilibrium again, what will be the distance from the top of the liquid to the bottom face of the cube?
On the second day, she walks 46.8 km in a direction 65.9 degrees north of east, at which point she discovers a forest ranger's tower. Determine the y component of the total displacement and magnitu
A frequency of 660 Hz is played. What percentage change in the tension of one of the strings would bring them to the same frequency?
When the first team uses its GPS to check the position of the second team, what does it give for the second team's (a) distance from them and (b) direction, measured from due east?
If you use the light bulb at home in the united states how bright will it be relative to the 60w 120v lightbulbs? estimate how much power it will consume.
Two 9.0 cm diameter charged disks face each other, 18 cm apart. Both disks are charged to - 70 nC. What is the electric field strength at the midpoint between the two disks?
For an electron to be confined to an nucleus, its deBroglie wavelenth would have to be less than 10 to the power -14m. What would be the kinetic energy of an electron confined to this region?
The blood flow in the body slows down as it gets farther from the heart. What is the average velocity for that 40 cm distance. How long will it take the blood to flow the distance?
The hammer moves at the rate of 1.47 rev/s..(a) What is the centripetal acceleration of the hammer?(b) What is the tension in the chain?
The plane of the loop is perpendicular to the field. The loop is pulled out of the field in 0.30 s. Find the average induced emf during this interval.
To find the height of an overhead power line, you throw a ball straight upward. What is the height of the power line?
Calculate the force of gravity between a human child (mass = 28 kg) and the planet Mars (mass = 6.4 1023 kg), when Mars is at its closest to Earth (distance = 8. 1010 m).
Find the gauge pressure at a second point in the line 11.0 {rm m} lower than the first if the pipe diameter at the second point is twice that at the first.
Calculate the electrical repulsion between two protons in a nucleus if they are 1.05×10-15 apart. How many pounds would the force be?
The pressure of a gas remains constant while the temperature, volume. The mass of the gas is 24.0 g, and its specific heat capacity is 1080 J/(kg?C°). Determine the pressure.
An electric dipole is formed from +/- 5nC point charges spaced 1.00 mm apart. The dipole is at the origin, oriented along the y-axis. What is the electric field strength at the point (x,y)=(12cm, 0
what is the change in the internal Energy? (b) How much Energy is added to the gas? (c) How much heat is required if the gas goes from a to c via abc?
A 1.90-mol sample of hydrogen gas is heated at constant pressure from 302 K to 410 K. Calculate the energy transferred to the gas by heat.
According to a clock on board the spaceship, how long will it take to make the trip? Express your answer in years (1 yr = 3.16 107 s).
Carson Inc.'s manager believes that economic conditions during the next year will be strong, normal, or weak, and she thinks that the firm's returns will have the probability distribution shown bel
The index of refraction of the cladding is 1.49. What is the maximum angle a light ray can make with the wall of the core if it is to remain inside the fiber?
Calculate the image position of a cologne bottle placed in front of the mirror at a distance of 83 cm
A hot air balloon has just lifted off and is rising at the constant rate of 2.4 m/s. If the passenger is 2.5 m above her friend when the camera is tossed, how high is she when the camera reaches her?