The table lists information about four devices.
device
wire loops
60
w
current (ma)
0.0
0.2
0.1
40
metal core
yes
yes
no
no
y
30
0.1
which lists the devices in order from greatest magnetic field strength to weakest?
w, x, y, z
w. z, y, x
x, z, y, w
x, y, z, w
save and et
shim

The man fires an 80 g arrow so that it is moving at 80 m/s when it hits and embeds in a 8.0 kg block resting on ice. how far will the block slide on the ice before stopping? a 7.1 n friction force opposes its motion.

Which statements about tornadoes are true? check all that apply. (a) about 12,000 tornadoes hit the united states every year. (b) a tornado looks like a funnel. (c) tornadoes are deadly atmospheric storms that cause millions in damages each year. (d) tornadoes can reach wind speeds of more than 300 miles per hour. (e) kansas is the state with the most tornadoes. (f) you will always notice a funnel before a tornado strikes.

Consider a system with two masses that are moving away from each other. why will the kinetic energy differ if the frame of reference is a stationary observer or one of the masses?