Answer:
mass of the composite lump is 10 kg
Explanation:
given data
mass = 4 kg
to find out
mass of composite lump
solution
we know energy is conserved so
so m1 = m2 = m0 that is 4kg
and
E(1) release+ E(2) release = E(1,2) rest
so γ(1)m(1)c² + γ(2)m(2)c² = Mc² ..........................1
that why here
|v(1)| = |v(2)| = 3/5 c ......................2
and
γ = 1 / √(1 − v²/c²) .......................3
put here v = 3 and c is 5
γ = 1 /√(1 − 9/25)
γ = 5/4
so
γ(1) = γ(2) = γ = 5/4
so from equation 1
γ(1)m(1)c² + γ(2)m(2)c² = Mc²
M = 2γm0
M = 2(5/4 )(4)
M = 10 kg
so mass of the composite lump is 10 kg
Answer:
The soup still is cool, or since its recent it will take a while to get warmer
Explanation:
Answer with Explanation:
Mass of block=1.1 kg
Th force applied on block is given by
F(x)=
Initial position of the block=x=0
Initial velocity of block=
a.We have to find the kinetic energy of the block when it passes through x=2.0 m.
Initial kinetic energy=
Work energy theorem:
Where 
Final kinetic energy
=Initial kinetic energy
Substitute the values then we get
Because work done=
![K_f=[2.4x-\frac{x^3}{3}]^{2}_{0}](https://tex.z-dn.net/?f=K_f%3D%5B2.4x-%5Cfrac%7Bx%5E3%7D%7B3%7D%5D%5E%7B2%7D_%7B0%7D)
Hence, the kinetic energy of the block as it passes thorough x=2 m=2.13 J
b.Kinetic energy =
When the kinetic energy is maximum then 
Substitute x=
Substitute x=
Hence, the kinetic energy is maximum at x=
Again by work energy theorem , the maximum kinetic energy of the block between x=0 and x=2.0 m is given by
![k_f=[2.4x-\frac{x^3}{3}]^{\sqrt{2.4}}_{0}](https://tex.z-dn.net/?f=k_f%3D%5B2.4x-%5Cfrac%7Bx%5E3%7D%7B3%7D%5D%5E%7B%5Csqrt%7B2.4%7D%7D_%7B0%7D)
Hence, the maximum energy of the block between x=0 and x=2 m=2.48 J
Answer:
1. Desert
2. United States
3. Explorer
Explanation:
Given the nature of the Sahara desert, it is believed to cover about 9.4 million kilometer square. Thereby is about the same size as the United States including the region of Alaska and Hawaii.
Because of its level of hotness, it is considered very challenging to explorers.
Therefore, it can be concluded that The Sahara. The largest desert DESERT on the planet. A searing wilderness the size of the UNITED STATES The toughest challenge an EXPLORER can face.
Answer: How are nuclear reactions used to meet the world's energy needs? Both fusion and fission are used to generate electricity, but more fission reactors than fusion reactors are in use. ... Both fusion and fission are used to generate electricity, but more fusion reactors than fission reactors are in use.
Explanation:
