Answer:
B
Step-by-step explanation:
7/8 .. *2 = 15/16
7/8 ...* 5 = 35/40
7/8 ...* 10 = 70/80
You can multiply the numerator and denominator by any number ( must be the same number), to result in an equivalent expression
In the design of a package, things to take into consideration are:
- The size
- Its safety
- Its durability
- Its storage space, etc.
<h3>What is cost effectiveness?</h3>
The most cost effective and efficient to pack 12 golf balls is through the use of a small golf bag or a small box that is made specially for that purpose.
The design of the box will be in a rectangle shape where there will be two rows of which the ball is made to fit in till the 12 balls are completely inside the box. The lock is automatic and it is one that can be easily closed and opened easily when one wants to take a ball.
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Just rearrange the inequalities to make x the subject.
2 + y <= 3
Subtract 2 from both sides.
y <= 1
7x > 56
Divide both sides by 7.
x > 8
Answer:
Given:
Mass of the tennis ball=56.5 g
wavelength=5400 Angstroms
De-Broglie Wavelength = 5400 Angstrom.
= 5400 × 10⁻¹⁰ m.
Now, Using the Formula,
λ = h/mv
here,
h is the Planck's constant = 6.62 × 10⁻³⁴ J-s.
and v is the velocity of the tennis balls.
∴ 5400 × 10⁻¹⁰ = (6.62 × 10⁻³⁴)/ (0.054 × v)
⇒ 0.054v = (6.62 × 10⁻³⁴)/ (5400 × 10⁻¹⁰)
⇒ 0.054v = 0.0012 × 10⁻²⁴
⇒ v = 0.0012 × 10⁻²⁴/0.054
⇒ v = 0.023 × 10⁻²⁴ m/s.
Hence, the velocity of the tennis balls is 0.023 × 10⁻²⁴ m/s.
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