Answer: 30s, 900m
Explanation: once the break is applied, the car will decelerate and the car will come to rest.
Since the car is coming to rest, final velocity (v) equals zero.
Hence u = 60 m/s, a = - 2m/s²
Recall that v = u + at
0 = 60 +( - 2)t
2t = 60, t = 60 /2 = 30s.
To get the distance covered before the car comes to rest, we have the formulae below
v² = u² + 2as
0² = 60² + 2(-2)s
0 = 3600 - 4s
4s = 3600
s = 3600/ 4 = 900m
Kinetic friction (also referred to as dynamic friction) is the force that resists the relative movement of the surfaces once they're in motion.
https://www.khanacademy.org › stat...
Static and kinetic friction example (video) | Khan Academy
Answer a would be static friction
Answer b is fluid friction
(Air resistance is fluid friction. Fluid friction is the friction experienced by objects which are moving in a fluid and the air is a fluid.)
Answer c is static friction
ANSWER D IS KINETIC FRICTION
Hope this helps :D
Answer: Nuclear energy
Explanation:
Nuclear energy (also called atomic energy) is the energy found in the nucleus of an atom.
This energy is released spontaneously (within the stars and the sun) or artificially (in nuclear reactors built by humans) in nuclear reactions, which are divided into two types:
-Fission (separation of the components of the atom nucleous)
-Fusion (joining two light nuclei to form a heavier nucleous)
In the case of the Sun, the nuclear reactions that occur are due fusion, in which the hydrogen is converted into helium.
Answer:
This equation, i = v/r, tells us that the current, i, flowing through a circuit is directly proportional to the voltage, v, and inversely proportional to the resistance, r. In other words, if we increase the voltage, then the current will increase.
HOPE THIS HELPED!!!!!!!!!!!!!!XDDDDDD
Answer:
ecosystem B
Explanation:
because it goes through more animal's and is correct