Answer:
2.2 cm easily observable
Explanation:
= Mass of 12 C =
= Mass of 13 C =
= Radius of 12 C =
B = Magnetic field
v = Velocity of atom = 8.5 km/s
= Radius of 13 C
The force balance of the system is
The required magnetic field is
Radius is given by
So
The required diameter is
Separation is given by
The distance of separation is 2.2 cm which is easily observable.
Answer:
The magnetic field will become 1.6 T.
Explanation:
Given;
initial length of the solenoid, L₁ = 10 cm
final length of the solenoid, L₂ = 25 cm
Magnetic field inside a solenoid is given by;
Therefore, the magnetic field will become 1.6 T.
Another change that happened around the same time as discovery of fire was that their diets moved from nuts and berries to include meat. So, the correct option is (A)
<h3>What was the influence of Fire on Human Evolution?</h3>
Humans must have learned to handle fire very early in human history. Most likely due to natural sources such as lightning strikes and naturally occurring forest fires. It wasn't until much later that mankind invented how to make fire. Hominidae (genus Homo) appeared in East Africa about 2.5 million years ago, and fire is closely associated with many stages of evolution. The ability to cook food is thought to have led to the rise of Homo erectus from its more primitive ancestors.
Cooked foods provide much more energy than raw foods with low food consumption. This may have given time to develop social skills too. Cooked foods also detoxify potentially harmful bacteria. This has increased the variety of food available.
Cooking with fire is thought to have developed a large brain. These factors are thought to have driven the evolution of other human traits, including large brains and bodies, small teeth, modern limb proportions, and many social aspects of human-related behavior ( Wrangham et al. 1999). Indeed, by softening food, fire may have had a significant impact on extending human life beyond the age of healthy teeth.
To know more about Human Evolution visit:
brainly.com/question/25991385
#SPJ4
Increase the change in momentum of the collision
Answer:
<em>a. True</em>
<em></em>
Explanation:
I'll assume the question is about magnetic latches and locks.
Magnetic door locks use an electromagnetic force to stop doors from opening, so they are ideal for security. There are two main types of electric locking devices. Locking devices can either be a fail-secure locking device that remains locked when power is lost, or a fail-safe locking device that is unlocked when de-energized. An electromagnetic lock creates a magnetic field when energized or powered up, this causes an electromagnet and armature plate to become attracted to each other strongly enough to keep a door from opening.