Answer;
= 0.018 mm
Explanation;
Mass = 12 ounces
1 ounce = 28.4 g
thus mass in g = 12 × 28.4 = 340.8 g
Volume = mass/density
= 340.8 g /2.70 g/cm³
= 126 cm³
The thickness from volume and area;
thickness = volume/ area
Area = 75 square ft
1 Square ft = 929.03 square centimeter
Thickness = 126 cm³/ (75 × 929.03)
= 0.001808 cm
but, 1 cm = 10 mm
Therefore; 0.001808 ×10 = 0.01808 mm
= 0.018 mm ( 3 decimal places)
Adding both distances together, you get a total of 1800 miles. With the total travel time of 4 hours, you divide the distance traveled by the time it took. so 1800/4=450 mph
Answer:
iPod does not use analog signals
Explanation:
Answer:
7.35m/s
Explanation:
Kinetic energy = 1/2 MV^2
From the question
Kinetic energy = 6.8x10^3J
Mass = 225kg
V =?
Using the above formula
We have
6.8x10^3 = 1/2 x 225 x v^2
6.8x10^3 = 112.5 x v^2
Divide both sides by 112.5
We have
6.8x10^3 / 112.5 = v^2
v ^2 = 54.04
V = squared root of 54.04
v = 7.35m/s
Answer:
A) 1.5 V
B) 4.5 V
Explanation:
A) Batteries in parallel have the same voltage as an individual battery.
V = 1.5 V
B) Batteries in series have a voltage equal to the sum of the individual batteries.
V = 1.5 V + 1.5 V + 1.5 V
V = 4.5 V