Answer:
All of these
Explanation:
Mantle convection causes tectonic plates to move around and passes heat on the earth surface in forms of lava and magma.
Hope it helps!
Answer:
A hydrometer is an instrument used to determine specific gravity
Answer:
<h2>E. 650N</h2>
Explanation:
step one:
given
length of stretcher= 2m
weight of stretcher=100N
Wayne weighs =800N
distance of Wayne weighs from chris's end= 75cm= 0.75m
The force that Chris is exerting to support the stretcher, with Wayne on it, can be computed by taking moments of the weight of the stretcher and Wayne weighs about Chris's end, the end result is the reaction at Chris's end
Taking moment about Chris's end
The moment of Wayne weight 75cm from Chris+ Half the weight of stretcher 1m from Chris
0.75*800+50*1=0
600+50=0
650N
Answer:
The correct option is B. an alpha particle.
Explanation:
When ²³Na is bombarded with protons 
, ²⁰Ne and one alpha particle 
is released.
The reaction is as follows:
Therefore, an alpha particle and ²⁰Ne are released when ²³Na is bombarded with protons.
