Answer:Kg•m/s
Explanation:the SI unit for momentum is kg•m/s
Momentum=mass x velocity
Unit for mass=kg
Unit for velocity=m/s
Therefore they unit for momentum is kg•m/s
Answer:
option (c) - 10 j
Explanation:
F = (6 i + 4 j - 2 k) N
r1 = (1.5, 3, -4.5) m = (1.5 i + 3j - 4.5 k) m
r2 = (4, -2.5, - 3) m = (4 i - 2.5 j - 3 k) m
displacement, r = r2 - r1 = ( 2.5 i - 5.5 j + 1.5 k) m
Work done is defined as the dot product of force vector and teh displacement vector.
![W = \overrightarrow{F}.\overrightarrow{r}](https://tex.z-dn.net/?f=W%20%3D%20%5Coverrightarrow%7BF%7D.%5Coverrightarrow%7Br%7D)
W = (6 i + 4 j - 2 k) . ( 2.5 i - 5.5 j + 1.5 k)
W = 15 - 22 - 3 = - 10 J
The answer is the electron microscope. It is a kind of
microscope that uses electrons to light a sample and make an enlarged
image. These kinds of microscopes have much better determining
power than light microscopes and can get much higher magnifications.
Answer:
I'm pretty sure it is Edwin Powell Hubble and Albert Einstein
Explanation:
Answer:
The answer will be 1.344 cents
Explanation:
100 W = 0.1 kW
the kWh =Power(W) x Time(Hour)
0.1 kW x 24 hours = 0.24 kWh
0.24 kWh x 5.6 cents per kWh = 1.344 cents