Answer:
120 kg.m/s
Explanation:
Momentum, p is given by the formula p=mv where m represent the mass of object in kgs while v is the velocity of the same object in m/s with direction aspect considered. In this case, the mass is given as 12 kg while velocity is 10 m/s hence momentum exerted will be 12*10= 120 kg.m/s
A star is a large ball of gas that emits energy produced by nuclear reactions in the star's interior. Much of this energy is emitted as electromagnetic radiation, including visible light. Light emitted by stars enables other objects in the universe to be seen by reflection.
It has a diameter of about 78 billion miles. For perspective, that's about 40% the size of our solar system, according to some estimates. And it's estimated to be about 21 billion times the mass of our sun. So there you have it, black holes can be millions of times larger than suns and planets or as small as a city.
Answer:
= 3.8 m/s
Explanation:
When the runner start the running, she is at rest. So the initial velocity of the runner is zero (0 m/s). And then she accelerates at a rate of 1.9 m/s² for 2.2 s. But we need to find the final velocity after t = 2 s when she starts the running. So, we take time equal to 2 second.
Given data:
Initial velocity = 
= 0 m/s
Acceleration = a = 1.9 m/s² (for 2.2 s after starting the race)
Time = t = 2 s
Final velocity = = ?
According to the First equation of motion
= + at
= 0 + (1.9)(2)
= 3.8 m/s
answer:
The horizontal component of the 600 N force is,
Fx = 600 cos(30) 519.61 N
The vertical component of the 600 N force is,
Fy = 600 sin(30) = 300 N
hope it's help!
