Answer:
The change in the car's momentum is equal to -8910 kgm/s.
Explanation:
Given that,
The mass of a car, m = 990 kg
Initial speed, u = 22 m/s
Final momentum, v = 13 m/s
We need to find the change in the car's momentum. The change in momentum of the car is given by :
So, the required change in the car's momentum is equal to -8910 kgm/s.
Answer:
1.695 kg
Explanation:
maximum tension, T = 20 N
acceleration, a = 2 m/s^2
acceleration due to gravity, g = 9.8 m/s^2
Let the mass of fish is m.
Use Newton's second law
T - mg = ma
T = m (g + a)
20 = m (9.8 +2 )
m = 1.695 kg
Thus, the largest mass of the fish is 1.695 kg.
Answer:
f = 409 Hz
Explanation:
We have,
Length of the open organ pipe, l = 0.29 m
Frequency of vibration of second overtone,
It is required to find the fundamental frequency of the pipe. For the open organ pipe, the frequency of second overtone is given by :
v is speed of sound
Let f is the fundamental frequency. It is given by :
The relation between f and f₂ can be written as :
So, the fundamental frequency of the pipe is 409 Hz.
(a) The equivalent resistance of the circuit is 0.52 ohms.
(b) The total electric current that runs through the circuit is 40.38 A.
(c) The value of the electric current passing through the resistor of 1.0 Ohm is 21 A.
(d) The power dissipated through the 8.0 Ohm resistor is 55.13 W.
<h3>
Equivalent resistance of the circuit</h3>
The equivalent resistance of the circuit is calculated as follows;
1/R = 1/(1 + 1) + 1/(2 + 2 + 2) + 1/(6) + 1/(2) + 1/8 + 1/8 + 1/6 + 1/6
1/R = 1/2 + 1/6 + 1/6 + 1/2 + 1/8 + 1/8 + 1/6 + 1/6
1/R = 1 + 2/3 + 1/4
1/R = 23/12
R = 12/23
R = 0.52 ohms
<h3>Total current through the circuit</h3>
V = IR
I = V/R
I = 21/0.52
I = 40.38 A
<h3>Current through 1 ohm resistor</h3>
V = IR
I = V/R
I = 21/1
I = 21 A
<h3>Power dissipated through 8 ohm resistor</h3>
P = V²/R
P = (21)²/8
P = 55.13 W
Learn more about power dissipated here: brainly.com/question/20642331
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