Answer:
90 N
Explanation:
The force applied to the ball is given by:
where
is the change in momentum of the ball
is the time taken
The change on momentum of the ball is:
So, the force applied is
Answer: <u>Element </u>
Explanation:
A chemical element is a substance which contain only one type of atom and it may be in the form solid, liquid and gas. On more the smallest particle of element is the atom.
Answer:
371.2 mm
Explanation:
The Balmer series of spectral lines is obtained from the formula
1/λ = R(1/2² -1/n²) where λ = wavelength, R = Rydberg's constant = 1.097 × 10⁷ m⁻¹
when n = 15
1/λ = 1.097 × 10⁷ m⁻¹(1/2² -1/15²)
= 1.097 × 10⁷ m⁻¹(1/4 -1/225)
= 1.097 × 10⁷ m⁻¹(0.25 - 0.0044)
= 1.097 × 10⁷ m⁻¹ 0.245556
= 2.693 10⁶ m⁻¹
So,
λ = 1/2.693 10⁶ m⁻¹
= 0.3712 10⁻⁶ m
= 371.2 mm
Continuing education opportunities allow adults to improve their skills, complete their education and also to change careers.
Answer: Option D
<u>Explanation:
</u>
As we continue our education for higher studies we can learn new things. We can improve our skills by going for higher studies. Some people have a break in their education and they can also continue their education after sometime to complete their course.
So, it helps them to cater their needs and enhance their knowledge. Also when we go for higher studies, we get to know other things about the subject and can try for different career choices. Also, we can even change our ongoing career if we go for higher education and find some other career more interesting and profitable than the existing ones.
Answer:
A. For every goal
Explanation:
A timeline is necessary for every goal set, be it academic, life, high school, personal, and the like. A timeline is an important part of goal setting. It helps determine what should be done by a certain time to ensure that you will reach your goal. Although some goals can take a long time to reach, a timeline will be your constant reminder of what needs to be done.
When setting a timeline, you also need to take in consideration what you want to achieve. You need to set a realistic timeline as many usually underestimate the obstacles they may face in pursuing their goals.
