This is called average speed.Its really simple
Answer:
u = 8.3 x 10⁻⁴ m/s
Volume to Pass = 5 x 10⁻⁴ L = 0.5 mL
Explanation:
First we find area of pipe:
A = πd²/4
A = π(2.54 x 10⁻² m)²/4
A = 0.02 m²
Now,
Q = (1 L/min)(1 min/60 s)(0.001 m³/1 L)
Q = 1.66 x 10⁻⁵ m³/s
Therefore,
u = Q/A
u = (1.66 x 10⁻⁵ m³/s)/(0.02 m²)
<u>u = 8.3 x 10⁻⁴ m/s</u>
Time for 10 mL:
T = 0.01 L/Q
T = (0.01 L)/(1 L/min)
T = (0.01 min)(60 s/1 min)
T = 0.6 s
Liters of water to pass:
Volume to Pass = uT
Volume to Pass = (8.3 x 10⁻⁴ m/s)(0.6 s)
<u>Volume to Pass = 5 x 10⁻⁴ L = 0.5 mL</u>
Answer:
The side of the paper with sunblock lotion stays on its the same color/tone while the other side of the paper without sunblock lotion faded
Explanation:
Ultraviolet (UV) radiation from the sun is the main cause of skin cancer, so one of the best ways to prevent skin cancer is to protect your skin from sun exposure with the use of sunscreen/sunblock. The sunlight that reaches us is made up of two types of harmful rays: long waves (UVA) and short waves (UVB)
Acceleration = ( final velocity - intial velocity ) / time
= (60-0)m/s / 3s
= 20 m/s2
the answer is a
d. The amount of work will increase.
Explanation:
If the distance traveled is increased and other factors are kept constant, then the amount of work done will increase.
- For is a product of force and distance.
Work done = Force x distance
- This shows that force and distance are directly related to work done.
- A change in any of the two product will change the value of work done.
- The unit of work done is Joules
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Work done brainly.com/question/9100769
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