<span>Answer:
6- for an object to accelerate, Newton's law #2 tells us there must be a force acting on it. F=ma the effect of a force is to accelerate the mass .
It cannot be 1, because the force must be centripetal to move the object in a circle. it can't be 2 because if an object is accelerating the velocity cannot be constant as it is moving faster. It can't be 3 because a stationary object has a net force of 0. 4 has nothing to do with the question. 5- no force is needed for uniform motion. 7- that is impossible.</span>
Answer: Carbon dioxide is the primary greenhouse gas emitted through human activities. In 2019, accounted for about 80 percent of all U.S. greenhouse gas emissions from human activities. Carbon dioxide is naturally present in the atmosphere as part of the Earth's carbon cycle (the natural circulation of carbon among the atmosphere, oceans, soil, plants, and animals. Human activities are altering the carbon cycle–both by adding more to the atmosphere, and by influencing the ability of natural sinks, like forests and soils, to remove and store from the atmosphere. While emissions come from a variety of natural sources, human-related emissions are responsible for the increase
Explanation:
The distance travelled by the baseball is 221 m.
<u>Explanation:</u>
Speed is the ratio of distance travelled to the time taken to cover any distance. So here the speed is given as 96 m/s and time is given as 2.3 seconds. Thus, we can determine the distance as product of speed with time.
![\text { speed }=\frac{\text {distance}}{\text {time}}](https://tex.z-dn.net/?f=%5Ctext%20%7B%20speed%20%7D%3D%5Cfrac%7B%5Ctext%20%7Bdistance%7D%7D%7B%5Ctext%20%7Btime%7D%7D)
Thus, distance = speed × Time
As the speed is 96 m/s and time is 2.3 seconds.
The distance = 96 × 2.3 =220.8 m
If we approximate it, the distance is 221 m. Thus, the distance travelled by the baseball is 221 m.
Answer:A force can be described as a push or a pull. Pushes and pulls can be seen to act on objects when they begin to move, speed up, slow down or change direction.
The image gallery on this page shows children at play using push and pull actions to move objects. Children use push and pull all the time while at play. While playing, students learn to manipulate objects and materials and make observations about their actions.
Teachers may use this teaching resource over a number of lessons to explore and develop their students' understanding that a push or a pull affects how an object moves or changes shape.
Explanation:
The kind of wave it is Longitudinal