Explanation:
Given that,
Mass of the rocket, m = 2150 kg
At time t=0 a rocket in outer space fires an engine that exerts an increasing force on it in the +x−direction. The force is given by equation :
Here F = 888.93 N when t = 1.25 s
(c) We can find the value of A first as :
The value of A is 
.
(a) Let J is the impulse does the engine exert on the rocket during the 4.0 s interval starting 2.00 s after the engine is fired. It is given in terms of force as :
Limits will be from 2 s to 2+ 4 = 6 s
It implies :
(b) Impulse is also equal to the change in momentum as :
Hence, this is the required solution.
KE=1/2mv^2
So from the given information me can plug in the values and find the KE or Kinetic Energy for the canoe;
KE=1/2(17kg)(3m/s)^2
KE=8.5kg*9m^2s^2= 76.5J of Kinetic Energy
Hope this helps, any questions please just ask. Thank you.
It would be kinetic energy. Let's say the book is weighs 10 Newtons you need to use a force of 10 Newtons to lift the book. In other words it's positive. As you move the book you're giving it energy. Namely potential energy which will turn to kinetic energy if you let it go. So you're changing it's position and energy.
Answer:Gases do not conduct heat as well as liquids and are therefore good insulators. Gases consist of widely spread out particles, and it takes contact to conduct heat. ... They are insulators if they are not ionized and there are no free charged particles there that can carry electric current.
Explanation:
Answer:
350
Explanation:
Since it travels 350 meters per second, the jet will travel 350 meters in one second.
