Which of these provides the most creative method to date rocks based on their position in a layer? Select one: a. Law of Superposition b. Law of Unconformities c. Principle of Uniformitarianism d. Principle of Original Horizontality
If the electric field strength in air exceeds 3.0 ✕ 106 n/c, the air becomes a conductor. using this fact, determine the maximum amount of charge that can be carried by a metal sphere 1.8 m in radius. (hint: review properties of conductors in electrostatic equilibrium. also, use that the points on the surface are […]
If a=i+2j+ka=i+2j+k and b=i+12j+kb=i+12j+k, find a unit vector with positive first coordinate orthogonal to both aa and bb.
How much charge is moved by the battery in c? you may assume the specific heat of baby formula is approximately the same as for water, and the specific heat of glass is 0.840 j/(g⋅°c), and the specific heat of aluminium is 0.900 j/(g⋅°c)?
One dimensional, steady-state conduction with uniform internal energy generation occurs in a plane wall with a thickness of 50mm and a constant thermal conductivity of 5 w/(m*k). for these conditions, the temperature distribution has the form, t(x)=a+bx+cx2. the surface at x=0 has a temperature of t(0)=120°c and experiences convection with a fluid for which the […]
In the previous question, the person had an initial velocity of 8m/s and a constant acceleration of −4m/s2. how would the maximum distance he travels to the right of the origin change if instead his initial velocity were doubled (vx,0=16m/s)?
The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.1 × 10-6 c/m2. (a) what is the […]
The electric potential at a position located a distance of 21.9 mm from a positive point charge of 6.80×10-9c and 14.5 mm from a second point charge is 1.14 kv. calculate the value of the second charge.
Suppose that she pushes on the sphere tangent to its surface with a steady force of f = 75 n and that the pressurized water provides a frictionless support. how long will it take her to rotate the sphere one time, starting from rest
A rock has a mass of 25 kg. the acceleration due to gravity is 10m/2^s and the height of the rock is 42m. find the potential energy of the rock
