All categories

2 years ago

Stat the law of conservation of momentum

Physics

1 answer:

Alex787 [66]2 years ago

3 0

Answer:

The law has three definitions

Firstly,

The law of conservation of linear momentum states that in any system of colliding objects the total momentum is always conserved provided that there is no net external force acting on the system.

Secondly

If two or more bodies collide in a closed system,the total momentum after the collision is equal to the total momentum before the collision

Thirdly,

The total momentum of an isolated or closed system of colliding bodies remains constant

You might be interested in

While traveling along a highway a driver slows from 24 m/sec to 15 m/sec in 12 seconds. What is the

Vladimir [108]

24-15=9 m/s slower in 12 seconds. So 9/12 m/s² slower. Therefore the acceleration is -0,75 m/s²

4 0

2 years ago

A stationary police car emits a sound of frequency 1240 HzHz that bounces off of a car on the highway and returns with a frequen

Tju [1.3M]

Answer

given,

frequency from Police car= 1240 Hz

frequency of sound after return = 1275 Hz

Calculating the speed of the car = ?

Using Doppler's effect formula

Frequency received by the other car

$f_1 = \dfrac{f_0(u + v)}{u}$ ..........(1)

u is the speed of sound = 340 m/s

v is the speed of the car

Frequency of the police car received

$f_2= \dfrac{f_1(u)}{u-v}$

now, inserting the value of equation (1)

$f_2= f_0\dfrac{u+v}{u-v}$

$1275=1240\times \dfrac{340+v}{340-v}$

1.02822(340 - v) = 340 + v

2.02822 v = 340 x 0.028822

2.02822 v = 9.799

v = 4.83 m/s

hence, the speed of the car is equal to v = 4.83 m/s

5 0

3 years ago

The ____ approach to managing innovation assumes that innovation is a predictable process made up of a series of steps and that

dybincka [34]

The "generational change" approach to managing innovation assumes that innovation is a predictable process made up of a series of steps and that compressing the time ittakes to complete those steps can speed up innovation.

5 0

2 years ago

Exerts a force on anything that has an electric charge

djyliett [7]

Answer:

Electric Field

Explanation:

7 0

2 years ago

What is the formula for a uniform electric field between two parallel plates?

vlabodo [156]

Answer: B. V/b
Explanation:

6 0

2 years ago

Stat the law of conservation of momentum​

Stat the law of conservation of momentum