In scientific notation there are some rules;
1) the decimal point is comes to the first non-zero degit.
2) if the decimal point comes from left to right the power of ten must be negative.
3) if the decimal point comes from right to left then the power of 10 is possitive.
the numberyou wrote is an scientific form.you must say that expressed in standard form.write brother.
Answer:
If there is no horizontal component to the force then it is just 0N
Explanation:
I believe the correct answer from the choices listed above is option C. The instrument that is <span>best suited for measuring the dimensions of a shoebox would be a ruler. A triple-beam balance is for measuring mass. A volumetric flask is for volume. A caliper is measuring lengths of small objects.</span>
Explanation:
Given data
The elevator mass=3.0×10³ kg
Time t=23 s
elevator lift d=210 m
The power is the average rate of work done:
So
P=F.V Cosα
Where F is force
V is velocity
α is angle between Force and velocity
Apply the Newton Law to find the force on elevator
The velocity of elevator is given as
Since the net force has same direction of motion so α=0°
So