The answer would be about 5.8
Answer: 2,4???
Step-by-step explanation:
A ) v = v o + g t
h = v o * t + g t² /2
10 m = 9.81 m/s² * t² / 2
9.81 t² = 20
t² = 2.038
t = 1.4278 s
v = 0 + 9.81 * 1.4278
v = 14 m/s
b ) v o = 14 m/s
v = v o² + 2 a d
0 = 14² + 2 a * 2.9
196 = - 5.9 a
a = 196 : ( - 5.9 )
a = - 33.79 m/s² ( the magnitude of his acceleration while in water )
c ) The total amount of force exerted on the swimmer in water:
F = m * a = 65 kg * 33.76 m/s²
F = 2,196.55 N
If the 8 you’re talking about is in inches then it would be 16 feet but if it’s 8 feet then it’s 4 inches
Answer:
S = 20 + 0.5*x (S is the total bill, x is the number of text messages)
Step-by-step explanation:
The cell phone company have a fixed value you have to pay every month, independently of the number of text messages you send, and that is $20.
For each text message, you pay an additional %0.50.
So, if you send 'x' text messages in a month, you will pay the fixed $20 plus $0.5 for each text messages: you will pay 0.5 times x for the messages.
So, we can formulate the following equation:
Being "S" the total price you will pay:
S = 20 + 0.5*x