Homework Statement
The magnetic force acting on a wire that is
perpendicular to a 5.3 T uniform magnetic
field is 6.5 N.
If the current in the wire is 5.0 A, what
is the length of the wire that is inside the
magnetic field?
Answer in units of m.Homework Equations
F = B . I . LThe Attempt at a...
Homework Statement
At 30.3C, the resistance of a segment of gold
wire is 124.9 omega When the wire is placed in a
liquid bath, the resistance decreases to 97.5 omega
What is the temperature of the bath?
The temperature coefficient for gold is
0.0034 (C)−1 at 20C.
Answer in units of C...
Homework Statement
Given: A flat dance floor of dimensions ℓx =
19 m by ℓy = 23 m and has a mass of M =
1600 kg. Use the bottom left corner of the
dance floor as the origin. Three dance couples,
each of mass m = 150 kg start in the top left,
top right, and bottom left corners.
What is the...
Homework Statement
A carpenter places a board weighing 22 lb on
the edge of the roof 28 ft above the ground.
How much potential energy does the board
have in relation to the ground?
Answer in units of ft · lb.
Homework Equations
PE=mgh
The Attempt at a Solution
I followed the...
ok for the 8kg block i got 39.30N the problem that i am having for the 2kg block is that i do not no what Force I am solving for that is pulling the block is it Fcos60 like the previous one or is it the tension of the string
Homework Statement
Two blocks connected by a string are pulled
across a rough horizontal surface by a force
applied to one of the blocks.
The acceleration of gravity is 9.8 m/s2 .
1st block = 2 kg
2nd block = 8 kg
Force on second block at 52◦
μ = 0.29
[ 2kg ]-------[ 8kg ]/ 52 degrees
If each...