By Archimedes Principle,
buoyant force= weight of fluiddispalced, so
mg= V*density of water*g
vol.* density of cube= 1*2*6*1000*10^-3
so, density of cube=12/(2*2*6)= 0.5kg/m^3
Only part D please. Thanks!
Two 2.0cm x 2.0cm metal electrodes are spaced 1.1 mm apart and connected by wires to the terminals of a 9.0 V battery. Part A What is the charge on each electrode? Express your answer to two significant figures and include the appropriate units. Qi29 pC Previous Answers Submit Correct Part B What is the potential difference between electrodes? Express your answer to two significant figures and include the appropriate units AV 9.0 V Previous...
A 200g block attached to a horizontal spring is oscillating with an amplitude of 2.0cm and a frequency of 3.2 Hz . Just as it passes through the equilibrium point, moving to the right, a sharp blow directed to the left exerts a 20N force for 1.0ms. What is the new amplitude?
The current in the loop is 500mA and its sides are a = 2.0cm and b = 4.0cm with a uniform magnetic field of 4.0T, find the numerical value for: 1. The Torque vector on the loop. 2. The magnetic dipole moment of the loop. 3. The maximum and minimum magnetic potential energy of the dipole. For which dipole directions do they occur? - a
A 33cm -long solenoid, 2.0cm in diameter, is to produce a 0.25T magnetic field at its center. If the maximum current is 4.2A , how many turns must the solenoid have?
Particles are forced along the x - axis separated by
distance of 2.0cm. What is the net electro - static force?
Find the field on:
(a) Particle 1 and
(b) Particle 2 due to other particle
4 3
A charge of 8.0 pC is distributed uniformly on a spherical surface (radius = 2.0cm), and a second charge of -3.0 pC is distributed uniformly on a concentric sphericalsurface (radius = 4.0cm). Determine the magnitude of the electric field 5.0cm from the center of the two surfaces.
3 charges along a line are spaced 2.0cm from each other. what is the Net force on the charge, farthest left. Q= 1.0 Q. -2Q. 3Q
The magnetic field strength at the north pole of a 2.0cm-diameter, 8cm long Alnico magnet is 0.10T. To produce the same field with a solenoid of the same size, carrying a current of 2.1A, how many turns of wire would you need?
8. The two charges in Figure are separated by a distance d=2.0cm and Q=5.00nC. a) Find the electric potential at A (4pt), b) Find the electric field at A(5pt), c) Draw the electric field at A from the two charges.(1 pt) -29
Suppose an object 2.0cm high is placed 5.0cm in front of a convex mirror whose focal length is 3.0cm. a) Calculate the image position, image height and the magnification. b) Describe the image (upright or inverted, real or virtual, bigger or smaller). c) Sketch a ray diagram to locate the image