This engineer invented the iron wire to replace hemp rope.

a. John Roebling

b. Washington Roebling

c. Richard Delafield

d. Phillip Murray

2. What effect does increasing the current have on a solenoid? A It will weaken the poles of the electromagnet. OB It will reverse the current's flow. C It will produce a weaker magnetic field. D It will produce a stronger magnetic field.

How does end A of the rod react when the charged ball approaches it after a great many previous contacts with end A?

Paceship 1 and spaceship 2 have equal masses of 300 kg. spaceship 1 has a speed of 0 m/s, and spaceship 2 has a speed of 4 m/s. what is the magnitude of their combined momentum?

A parallel circuit contains four branches. One branch has a current flow of 0.8 A, another has a current flow of 1.2 A, the third has a current flow of 0.25 A, and the fourth has a current flow of 1.5 A.

How long must a current of 100ma flow so as to transfer a charge of 80c

A cell provides 6 V to an LDR. The current through this LDR is measured and is found to be 3 A. What is the resistance of the LDR?

A car travels along eastward with a constant velocity. the magnitude of the acceleration of the car is

What is the weight of a 65 kg astronaut on mars?

When lava cools, what type of Rock forms?

A uniformly charged conducting sphere of 1.1 m diameter has a surface charge density of 6.2 µC/m2. (a) Find the net charge on the sphere. (b) What is the total electric flux leaving the surface of the sphere?