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JulijaS [17]
3 years ago
7

Suppose that it takes 0.6 seconds for a mass on a spring to move from its

Physics
1 answer:
creativ13 [48]3 years ago
5 0

Answer:

1.2

Explanation:

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In order for a ball to move upward, the initial velocity of the ball must be greater than _____.
ch4aika [34]

Answer:

The answer is zero please Give me Brainly

Explanation:

5 0
2 years ago
a proton is in a box of width L. what must the width of the box be for the ground level energy to be 5.0 MeV, a typical value fo
sashaice [31]

Answer:

Width of a box, l=6.41\times 10^{-15}\ m

Explanation:

The ground level energy of a proton in a box is, E = 5 MeV

E =5\times 10^6\ eV\\\\=5\times 10^6\times 1.6\times 10^{-19}\\\\=8\times 10^{-13}\ J

Energy in a box is given by :

E=\dfrac{n^2h^2}{8ml^2}

For ground state, n = 1

m is mass of proton

h is Planck's constant

l is width of the box

l^2=\dfrac{n^2h^2}{8mE}\\\\l^2=\dfrac{1^2\times (6.63\times 10^{-34})^2}{8\times 1.67\times 10^{-27}\times 8\times 10^{-13}}\\\\l=\sqrt{\dfrac{1^{2}\times(6.63\times10^{-34})^{2}}{8\times1.67\times10^{-27}\times8\times10^{-13}}}\\\\l=6.41\times 10^{-15}\ m

So, the width of the bx is 6.41\times 10^{-15}\ m.

6 0
3 years ago
What is an appraisal of an employee's performance in the workplace?
Diano4ka-milaya [45]

Answer:

B. evaluation

Explanation:

An employee can be defined as an individual who is employed by an employer of labor to perform specific tasks, duties or functions in an organization.

Basically, an employee is saddled with the responsibility of providing specific services to the organization or company where he is currently employed while being paid a certain amount of money hourly, daily, weekly, or monthly depending on the contractual agreement between the two parties (employer and employee).

Hence, while an employer may be the owner of a business firm or company, an employee is a subordinate employed to provide unwavering services to the employer while also, being professional and diligent at all times.

Human resources management (HRM) can be defined as an art of managing, controlling and improving the number of people (employees or workers), functions, evaluation of employees, activities which are being used effectively and efficiently by an organization.

Hence, human resources managers are saddled with the responsibility of recruiting, evaluating, managing and improving the welfare and working conditions of the employees working in an organization.

Basically, the human resources manager carry out appraisals on the performance of the various employees working in an organization. These informations about employees are typically used for promotional purposes, allowances and other benefits or form of rewards.

6 0
3 years ago
Which factors are used to calculate the kinetic energy of an object? Check all that apply.
Verizon [17]
Gravity and velocity
8 0
3 years ago
What gas makes up most of our atmosphere in the troposphere?
Agata [3.3K]
78 nitrogen I think
4 0
3 years ago
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