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MakcuM [25]
3 years ago
10

#21 A 0.30 kg softball has a velocity of 15 m/s at an angel of 35o below the horizontal just before making contact with the bat.

What is the magnitude of the change in momentum of the ball while in contact with the bat if the ball leaves with a velocity of (a) 20 m/s, vertically downward, and (b) 20 m/s, horizontally back toward the pitcher?
Business
1 answer:
FrozenT [24]3 years ago
8 0

Answer:

a) 5 kg m/s

b) 10 kg m/s

Explanation:

GIVEN DATA:

mass of softball 0.30 kg

\theta = 35 degree

velocity = 15 m/s

Along the x axis we have

P_{xf} - P_{xi} = 0 - 0.3(15)cos 35 = - 3.68\hat i kg m/s

along the y axis we have

P_{yf} - P_{yi} = -(0.3)20 - 0.3(15)sin 35 = - 3.41\hat j kg m/s

The magnitude of momentum is

\Delta P = \sqrt{ (-3.41)^2 + (-3.68)^2} = 5 kg m/s

b) Along the x axis we have

P_{xf} - P_{xi} = -0.3(20) - 0.3(15)cos 35 = - 9.68\hat i kg m/s

along the y axis we have

P_{yf} - P_{yi} = -0 - 0.3(15)sin 35 = -25.58\hat j kg m/s

The magnitude of momentum is

\Delta P = \sqrt{ (-9.68)^2 + (-2.58)^2} = 10 kg m/s

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Answer:

true

Explanation:

Services are different than products because they:

  • products can be stored for future use while services perish immediately after being performed or if they are not consumed, e.g. unsold spaces in a theater cannot be stored for later use ⇒ Perishability
  • products are tangible, while services cannot be measured, weighted, etc. ⇒ Intangibility
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3 0
4 years ago
What are the roles of the control unit and the alu?
makvit [3.9K]
An arithmetic logic unit is a digital circuit used to perform arithmetic and logic operations. It signifies the essential building block of the central processing unit of a computer. The modern central processing unit contain very powerful and complex arithmetic logic unit. In addition to arithmetic logic unit, modern central processing unit contain a control unit.
8 0
3 years ago
Calculate the defects per million opportunities (DPMO) given the following: Blake, owner of Blakester's T-shirt Shoppe, keeps tr
pantera1 [17]

Answer:

His firm's DPMO is 12,083

Explanation:

The computation of the DPMO is shown below:

= (Total complaints ÷ total number of defects opportunity) × 1 million

where,

Total complaints = Shrinkage complaints + poor quality complaints + wear off complaints + fitting issue complaints

= 22 + 16 + 12 + 8

= 58 customers defects

And, the total number of defects opportunity would be equal to

= Number of t-shirts sold × number of possible complaints

= 1,200 × 4

= 4,800

Now put these values to the above formula

So, the value would be equal to

= (58 ÷ 4,800) × 1,000,000

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4 years ago
Investigating communication in the workplace by finding optimal ways to set up a communication network system for employees who
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Answer:

Cybernetic approach

Explanation:

Cybernetic approach is the method or the approach for exploring the system of the regulatory, its possibilities, structures and constraints. It involve the study of derived concepts, feedback and black boxes like the communication and the control in business and living organisms, involving the self - organization.

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4 0
4 years ago
Company A uses the FIFO method to account for inventory and Company B uses the LIFO method. The two companies are exactly alike
ANEK [815]

Quick ratio is 1.47.

Company A uses the FIFO method to account for inventory and Company B uses the LIFO method. The quick ratio is an indicator of a company’s short-term liquidity position and measures a company’s ability to meet its short-term obligations with its most liquid assets.

Gross Profit 72000 67000

Operating expenses and interest expense 56000 53000,

Pretax Income 2200014000

Income Tax 3000 4000

Net Income 14000 10000

Balance sheet Year? Year

cash 4000 7000

Accounts Receive ab 114000 18000

Taventory 40000 34000,

Property & Equipment 45000 36000

Total Assets 302000 97000

Current Liabilities ‘i6000 4.7000

Long term Liabilities 5000 45000

Common stock 30000 30000

Retained Earnings 1120005000

Total Liabilities & Stock holders equity 10300037000,

L. Current Ratio = Current Assets / Current Liabilities

Year? Year

Current Ratio 36347

2.Quick Ratio

‘Current Assets - Inventory / Current Liabilities

Year? Year

Quick Ratio is 1.47

2.Profit Margin = Net profit /Sales

Year? Year

Profit Margin 737% 5.99%

Learn more about quick Ratio here

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