Answer:
Explanation:
If Ek is the kinetic energy and m is the mass and v is the velocity then v can be calculated as follows
Ek= 1/2 ×( m × v² )
2Ek= mv²
2Ek/m = v²
v =√(2Ek/m)
m = 0.1 kg
v= √(2x8/0.1)= 12.65 m/s
The black circles are the solvent and the open circles are the solute
Answer:
No
Explanation:
Not all metals stick to magnets. Like aluminum. if you were to stick a magnet on to an aluminum it would fall off.
Answer:
13.309 m/s²
Explanation:
Length from shoulder to hand, l = 30 cm = 0.3 m
initial velocity, u = 1 m/s
final velocity, v = 2.5 m/s
time, t = 3 s
Let the tangential acceleration is a.
by using first equation of motion
v = u + at
2.5 = 1 + 3 a
a = 0.5 m/s²
Let the centripetal acceleration is a'.
a' = v'²/l
a' = 2 x 2 / 0.3
a' = 13.3 m/s²
The tangential acceleration and the centripetal acceleration are both perpendicular to each other. So, the net acceleration is given by
![A=\sqrt{a^{2}+a'^{2}}](https://tex.z-dn.net/?f=A%3D%5Csqrt%7Ba%5E%7B2%7D%2Ba%27%5E%7B2%7D%7D)
![A=\sqrt{0.5^{2}+13.3^{2}}](https://tex.z-dn.net/?f=A%3D%5Csqrt%7B0.5%5E%7B2%7D%2B13.3%5E%7B2%7D%7D)
A = 13.309 m/s²