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Natasha2012 [34]
3 years ago
13

Solve the problem.

Physics
1 answer:
gulaghasi [49]3 years ago
5 0
As the shock waves travel in concentric outward circles from the epicenter, and the diameter is measured 120 miles,
area of a circle =<span>π</span><span>r*r</span>

d=120
<span>r=<span>120/2</span></span><span>r=60</span><span><span>60*60</span>=3600</span><span>3600*π=11309.734</span>
<span>11309.734 square miles</span>
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A coin has a radius of 1.06 cm and a thickness of 1.2 mm. Find its<br><br> volume in m^3.
ANTONII [103]

Answer:

The volume of the coin is 4.236 x 10⁻⁷ m³

Explanation:

Given;

radius of a coin, r = 1.06 cm = 0.0106 m

thickness of the coin, h = 1.2 mm = 0.0012 m

The volume of the coin is given by;

volume = Area x thickness

Area of the coin = πr² = π (0.0106)² = 3.5304 x 10⁻⁴ m²

The volume of the coin = (3.5304 x 10⁻⁴ m²) x (0.0012 m)

The volume of the coin = 4.236 x 10⁻⁷ m³

Therefore, the volume of the coin is 4.236 x 10⁻⁷ m³

4 0
3 years ago
What is the voltage in a circuit if the current is 6 Amps and resistance is 6 ohms
Mrrafil [7]

U=R•I=6•6=36 V

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3 0
4 years ago
Dr. Wolski does research on the potential relationship between neurotransmitter deficiencies and mood states. Which psychologica
kipiarov [429]

Answer:

Bio psychology

Explanation:

Since, Dr. Wolski does research on the potential relationship between neurotransmitter deficiencies and mood states. His psychological specialty must be biological psychology.

Biological psychology, or bio psychology, is a discipline in which scientific investigation and clinical practice investigates the relation between brain and body. In this area scholars evaluate the biological basis of feelings, impulses and behaviors.

8 0
4 years ago
A vinyl record is played by rotating the record so that an approximately circular groove in the vinyl slides under a stylus. Bum
Fed [463]

Answer:

983.400345675 hits per second

Explanation:

Radius = 14.2 cm

Record turn rate = 33 rev/min

Bump separation = 0.499 mm

Circumference of the record = 2\pi 0.142=0.89221231362\ m

Number of bumps in the groove = \dfrac{0.89221231362}{0.499\times 10^{-3}}=1788.0006285\ bumps

The rate which the bumps hit the stylus = 33\times\dfrac{1788.0006285}{60}=983.400345675

The rate at which the bumps hit the stylus 983.400345675 hits per second

8 0
3 years ago
As galáxias são maiores do que os enxames de estrelas?
GuDViN [60]

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Responder \;\;a}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

As galáxias são geralmente maiores do que os aglomerados de estrelas. Como disse Geller ~ As galáxias são como as cidades em que vivem os aglomerados de estrelas. As galáxias podem ter cerca de milhares ou mais aglomerados de estrelas ~

I hope it helps ~

8 0
3 years ago
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