Answer:
Explanation:
brooke speed, u = 9 km/h = 2.5 m/s
Jamail speed, v = 4 km/h = 1.11 m/s
Let Booke is at (0, 0) and Jamail is at 35 m. So, at time t, the position of Brooke is (2.5 t , 0 ) and Jamail is (- 1.11 t, 35)
Let l be the distance between them.
Distance at t = 5 s
L = 39.38 m
Differentiate with respect to time
Put t = 5 s
dL/dt = 0.127 m/s
Answer:
The tank should be empty in about 2-1/4 hours. Variables: h = elevation of tank D = diameter of tank A = orifice area (ft2) G = gravitational acceleration = 32.2 ft/sec2 ∆t = time required to empty tank (sec) The following formulas are based on turbulent flow of a Newtonian fluid through an outlet (orifice) in a tank.Explanation:Measure the number of liters or gallons in the container, and divide that number by 15. This gives the flow rate in liters per second or gallons per second. The formula is F = V/T, where F is the flow rate, V is the volume and T is the time.=180 s=3 min.
To provide a greater certainty that the observed results are not by chance.
Correct Answer: B optionPotential Difference = V = 200 V
Charge on the plate = Q =
C
Capacitance = C
Q, C and V for a parallel plate capacitor are related as:
Q = CV
⇒
C = Q/V
Using the values in the formula, we get:
F
Therefore, B option is the correct answer.
A: action force ... to which there is a reaction force