Answer:
For part 1) correct answer is : a) SB=SN<VB=VN
For part 2) correct answer is : a) SB=SN<VB=VN
Explanation:
We will use the following formula of momentum
momentum after collision
=momentum before collision
=m*u1-(3*m*u2)
As we know u1 = u2 = 20 m/s
Hence,
-2*m*20 = 4*m*v
v = -10 m/s
v being the common velocity of the SUV and car after the collision
As we know that impulse is J = change in momentum = m*(v-u)
And u being initial velocity which is same for the SUV and car
non belted passengers collide with dashboards with a force which is called as a internal force and due to that internal forces the momentum remains constant heance impulse is also same experienced by seatbelted and non seat belated
As mass of SUV is 3 times the mass or car.
Hence the correct option is a) SB=SN<VB=VN
2) There is the same order of rant for force and impulse
As we know that impulse j = F*dt
Hence correct answer. is a) SB=SN<VB=VN
The chemical reaction causes electricity to flow through the terminals to the load attached. Some of the acid in the battery remains on the plates as it flows through. When the battery is recharged the acid is returned to the liquid solution to provide more power later.
Answer:
It is True
Explanation:.
A commander assigns a zone reconnaissance mission when he seeks additional information on a zone before committing other forces in the zone. It is appropriate when the enemy situation is vague, existing knowledge of the terrain is limited, or combat operations have altered the terrain. A zone reconnaissance could include several route or area reconnaissance missions assigned to subordinate units.
In a process called “photosynthesis,” plants use the energy in sunlight to convert CO2 and water to sugar and oxygen. The plants use the sugar for food; food that we use, too, when we eat plants or animals that have eaten plants and they release the oxygen into the atmosphere.
So it’s PHOTOSYNTHESIS
Answer:
33= 0+10 * t so t = 33 / 10 = 3.3 hrs