The entangled velocity of the cars after the collision is 2.7 m/s.
<h3>What is velocity?</h3>
Velocity is the rate of change of displacement. The S.I unit of velocity is m/s.
To calculate the velocity of the entangled cars after the collision, we use the formula below.
Formula:
- mu+MU = V(m+M).............. Equation 1
Where:
- m = mass of the car
- M = mass of the truck
- u = initial velocity of the car
- U = initial velocity of the truck.
- V = velocity of the entangled car after the collision.
Make V the subject of the equation.
- V = (mu+MU)/(m+M)............ Equation 2
From the question,
Given:
- m = 2000 kg
- M = 18000 kg
- u = 0 m/s (at rest)
- U = 3 m/s
Substitute these values into equation 2
- V = [(2000×0)+(18000×3)]/(2000+18000)
- V = 54000/20000
- V = 2.7 m/s.
Hence, the entangled velocity of the cars after the collision is 2.7 m/s
Learn more about velocity here: brainly.com/question/13665920
Answer:
Reactance of the capacitor is 0.01 ohms.
Explanation:
It is given that,
Capacitance of the capacitor is 0.5 F
Peak voltage of the battery is 2 V
Angular frequency is 200 rad/s
We need to find the capacitive reactance. The capacitive reactance is due to the capacitor in the circuit. It is given by :
So, the reactance is 0.01 ohms.
<span>Magnetic separation takes advantage of differences in the magnetic properties of minerals. Minerals fall into one of three magnetic properties: ferromagnetic, paramagetic and diamagnetic</span>
Answer: a. 126.21secs
b. 12.621 meters.
Explanation:
Given data:
Speed of tortoise = 0.1m/s.
Speed of hare = 2m/s.
Solution:
a. Distance traveled = Speed* Time
Speed of tortoise = 0.1 m/s
Speed of hare = 20*0.1 m/s = 2 m/s
2 minutes = 2* 60 s = 120 s
Let the time taken for the race be t seconds.
• Distance moved by tortoise
= (0.1 /s)* (t s)
= 0.1*t meter
•Hare has run for a time of (t - 120)s.
distance moved by hare
= Speed * Time
= (2 m/s)*(t- 120)s
= (2t - 240) meter.
Since hare is 20 cm (0.2 m) behind the tortoise, therefore
(0.1*t - 0.2) meter
= (2t - 240) meter
0.1*t - 0.2 = 2t - 240
Collect like terms
239.8 = 1.9t
Divide both sides by 1.9
t = 126.21secs
The race lasted for 126.21secs
b. Length of race
= Distance moved by tortoise
= 0.1*126.21 meter
= 12.621 meter
The length of the race is 12.621 meters.
20,000 because I did the quiz and got it right txt me if you need help