Answer:
21.49 hrs
Explanation:
it is the longest day of daylight due to Alaska being closest to the au. at the time
Acceleration is the rate of change of velocity per unit of time.
<span>particle varies with time as shown in the diagram. ... resultant has a magnitude equal to 8.0. .... A constant force F is applied to a body of mass m that initially is headed east at velocity .... If the resultant force acting on a 2.0-kg object is equal to ..... A ball of mass mB is released from rest and acquires velocity of magnitude vB ...</span><span>
</span>
Answer:
1. Weight
2. potassium chlorate
3. pushing forward
Explanation:
1. Our full body stands in our feet, so feet takes all the weight of the body. In Newtonian mechanics, weight is a force. Weight is happened with the interaction between the mass and gravitational field. As the gravitational field is a vector, it has directions that are downward. So the interaction between mass and gravitational field works downward. So all the weight is felt by our feet.
2. In a fire stick, potassium chlorate is used. Potassium is known as a flammable chemical. Potassium chlorate is used in the upper part of the fire stick. When potassium chlorate faces frictions, a chemical reaction is happened, which creates great heat. The heat makes extra oxygen and heat, which makes the stick burn and create fire.
3. It is easy to rolling than push forward. If we consider a heavy lawn roller, the weight of the roller works downward. If we push the lawn roller, the force divided into two sub forces. One works downward which increases the weight of the roller and other works forward. But if we roll the lawn roller, the forces divided into two forces: upward and forward. Upward force makes the weight decrease and forward force makes it move forward. As the weight decrease, it becomes easy to roll than push
