1,900,000,000 in scientific notion is
1.9 ×10^9
check the picture below.
you can check in your calculator, make sure your calculator is in Degree mode.
Answer:
a) How much work has he done = dW = 1.3 × 105 J
b) What is the magnitude of the heat that he has lost = dQ = -5.4 × 105 J
Step-by-step explanation:
- From the first law of thermodynamics; dQ = dU + dW
Hence, work done dW = dQ - dU
dW = -6.7 × 105 J - ( -8.0 × 105 J)
dW = 1.3 × 105 J is the work done by the player
- for heat lost; from dQ = dW + dU
- dU = -8.0 × 105 J and dW = 2.6 × 105 J
- heat lost dQ = 2.6 × 105 J + ( -8.0 × 105 J)
- The negative is as a result of heat lost by the player
Answer:
y≤−135
Step-by-step explanation:
1/5 ( y + 10 ) ≤ - 25
1/5y+2≤−25
1/5y+2−2≤−25−2
1/5y≤−27
5*1/5y≤(5)*(−27)
y≤−135
We are going to form our equation in mx+b=y form.
Y= the y intercept; the distance at 0.
M= Rate of which the turtle was walking.
So, M=2 and y=7.
The equation is 2x+7=y.
