Materials that conduct heat and electricity well in the solid state result when metals bond with metals. <span>This type of bonding is called metallic bonding. Metallic bonding is when positive ions (metals) are in a 'sea of negative electrons'. The electrons are delocalised, which means they can move around easily and carry charge, and this enables it to conduct electricity, even in a solid state.</span>
Answer:
Explanation:
Given:
- initial gauge pressure in the container,
- atmospheric pressure at sea level,
- initial volume,
- maximum pressure difference bearable by the container,
- density of the air,
- density of sea water,
<u>The relation between the change in pressure with height is given as:</u>
where:
dz = height in the atmosphere
= standard value of gravity
<em>Now putting the respective values:</em>
Is the maximum height above the ground that the container can be lifted before bursting. (<em>Since the density of air and the density of sea water are assumed to be constant.</em>)
I believe the answer is resistance because ohms law is V=IR
Explanation:
u=20m/s
v=0m/s
g= 9.8m/s^2
h=?
v^2 = u^2 -2gh
0^2 = 20^2 -2 ×9.8×h
19.6h=400
19.6h/19.6 = 400/19.6
h=20.41m
solving for time taken for the ball to reach the ground again T =the time to reach maximum height + time the Ball takes to fall to the ground .
The time t to reach maximum height = The time t to fall to the ground
T = t+t
T=2t
u=20m/s
v=0m/s
g= 9.8m/s^2
t=?
v= u-gt
0=20-9.8t
9.8t=20
9.8t/9.8 = 20/9.8
t= 2.04seconds
T=2t
T=2(2.04)
T=4.08 seconds is the time the ball takes to reach the ground again.