Answer;
B. Mass and energy are equivalent.
Explanation;
-Each of the letters of E = mc2 stands for a particular physical quantity.
E is the energy, m is the mass and c is the speed of light (m/s)
Energy = mass x the speed of light squared
-The equation E=mc2 explains nuclear fusion, how matter can be destroyed and converted to energy and energy can be converted back to mass. It explains the atomic energy produced by nuclear power plants and the atomic energy released by atomic bombs.
-The equation tells us that mass and energy are related, and, in those rare instances where mass is converted totally into energy, how much energy that will be.
Answer:6773.54 V/m
Explanation:
Given data
Distance between two rings(x)=25cm
Charge on each ring(Q)=
C
diameter of ring(d)=10 cm
Now Electric field strength at distance x from ring=
Where K=coulomb's constant=
=8.98\times 10^{9]
Now electric field strength at midpoint between two rings is zero
because one is pointing towards positive x direction and other in negative z direction.
but electric field strength at center of ring due to other ring is given by
=
=
=6773.54 V/m
Answer:
V=40 m/s d=150m t=? if V=d/t t=d/V t=150m/40m/s
t=3.75s
Explanation:
i am not good at explaining but i hope this will help you
Answer:
spring compressed is 0.724 m
Explanation:
given data
mass = 1.80 kg
spring constant k = 2 × 10² N/m
initial height = 2.25 m
solution
we know from conservation of energy is
mg(h+x) = 0.5 × k × x² ...................1
here x is compression in spring
so put here value in equation 1 we get
1.8 × 9.8 × (2.25+x) = 0.5 × 2× 10² × x²
solve it we get
x = 0.724344
so spring compressed is 0.724 m
