I’m pretty sure 14 is mutations
Answer: KE = 25 J
Explanation: You must use the formula
KE = 1/2 m v²
to solve this problem.
KE = 1/2 (10 Kg) (5 m/s)
KE = 1/2 (50 kgm/s)
KE = 25 J
The statement “Impulse is a vector quantity” is true about Impulse.
Answer: Option B
<u>Explanation:
</u>
The object’s action by applied force in a particular time interval, there happens changing in momentum called impulse. It is denoted by a symbol ‘J’ or ‘imp’ and expressed in a unit ‘Ns’. As impulse depends on the acted force, when a collision arises from front, behind or side, the force’s direction would be differed.
So, from this option A is false as impulse is not a force but changing momentum. The unit is not Newton, it is Newton second (Ns). The force direction differs (impulse direction) for each cases of collision, so option D also false. Hence, option B seems to be correct. Vector quantity deals with both direction and magnitude and important in motion study.
earth still is not solid ... core is molten ... volcanoes, sea is liquid
at v v v beginning was gas ????
1) Carbohydrates, Lipids (fats), Protein, Vitamins, Minerals, and Water. proteins, fats and carbs provide energy.
2) 45 to 65 percent carbs, and 10-35 percent protein.
3) Carbs are your body's main source of energy. the 2 major types are simple and complex carbs
4) cereals, fruits and vegetables. You should have 25 to 30 grams a day.
5) It helps repair and build your body's tissues, allows metabolic reactions to take place and coordinates bodily functions.
6) It gives you energy and supports cell growth.
7) Saturated fats, Trans fats, Monounsaturated fats, and Polyunsaturated fats. trans fats are the most dangerous for your health
8) Vitamins and minerals are considered essential nutrients, They help shore up bones, heal wounds, and bolster your immune system. They can also help convert food into energy.
9) Minerals help build strong bones to transmitting nerve impulses. Some minerals are even used to make hormones or maintain a normal heartbeat.
10) 60% is made of water, 11 to 15 cups of water should be drank a day.
hope this helps :)
