Answer: you just know bro
Explanation:
The density is 5.22 g/cm³.
Density=
![\frac{mass}{volume}](https://tex.z-dn.net/?f=%20%5Cfrac%7Bmass%7D%7Bvolume%7D%20)
Density=
![\frac{120 g}{23 cm {3} }](https://tex.z-dn.net/?f=%20%5Cfrac%7B120%20g%7D%7B23%20cm%20%7B3%7D%20%7D%20)
Density= 5.22 g/cm³
Answer:
oone side at a time would be hot and the other oone
Explanation:
One side will be hot and the other cold no in-between
Explanation:
Advantages of physical models include accuracy, safety, visualization, education, and trying things out that would be impossible in the real world due to safety, cost, or practical concerns. You can visualize things that are extremely tiny, happened millions of years ago, or that otherwise can't be viewed directly.
Answer:
v = 6.05 m/s
Explanation:
The mass of the brick, M = 21 kg
The velocity of the brick, U = 6.1 m/s
The mass of the cart, m = 2.9 kg
The velocity of the cart, u = 0.26 m/s
The combined mass of the brick and the cart, v = ?
According to the law of conservation of linear momentum,
Combined final momentum = sum of the initial momentum
(M + m)v = MU + mu
v = MU + mu / M + m
= 21 x 6.1 + 2.1 x 0.26 / (21 + 0.26)
= 6.05 m/s
Hence, the combined velocity of the cart and the brick is, v = 6.05 m/s