1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ivanzaharov [21]
4 years ago
12

Question 2.

Physics
1 answer:
choli [55]4 years ago
3 0

Explanation:

1 inch = 25.4 mm

1 foot = 12 inches

1 mile = 5260 feet

1 cm = 0.01 m or 10 mm

Now Sammy's height is 5 feet and 5.3 inches.

(a) We need to find Sammy's height in inches.

Since, 1 foot = 12 inches

5 feet = 5 × 12 inches = 60 inches

Now, 5 feet and 5.3 inches = 60 inches + 5.3 inches = 65.3 inches

Sammy's height is 65.3 inches.

(b) We need to find Sammy's height in feet.

Since, 1 foot = 12 inches

1\ \text{inch}=\dfrac{1}{12}\ \text{feet}

So,

5.3\ \text{inch}=\dfrac{5.3}{12}\ \text{feet}=0.4416\ \text{feet}

5 feet and 5.3 inches = 5 feet + 0.4416 feet = 5.44 feet

Sammy's height is 5.44 feet.

You might be interested in
A laser emits light at power 6.20 mW and wavelength 633 nm. The laser beam is focused (narrowed) until its diameter matches the
Ipatiy [6.2K]

Answer:

a) S = 1.69 10⁹ W/m², b)  P = 5.63 Pa , c) F = 20.6 10⁻¹² N

Explanation:

a) The intensity defined as the energy per unit area

    S = U / A

Area of ​​a circle is

    W = 6.2 mw = 6.2 10-3 W

    R = 1080 nm = 1080 10⁻⁹ m  = 1.080 10⁻⁶ m

   A = π R2

   A = π (1,080 10⁻⁶)²

   A = 3.66 10 -12 m²

   S = 6.2 10-3 / 3.66 10-12

   S = 1.69 10⁹ W / m²

b) The radiation pressure

   P = 1 / c (dU / dt) / A

   S = (dU / dt) / A

   

   P = S / c

   P = 1.69 10 9 / 3. 108

   P = 5.63 Pa

c) the definition of pressure is force over area

   P = F / A

   F = P A

   F = 5.63 3.66 10⁻¹²

   F = 20.6 10⁻¹² N

d) for this we use Newton's second law

   F = ma

   a = F / m

8 0
3 years ago
What does "Time (s)” represent in the graph? the y-axis the dependent variable an inverse relationship the independent variable
san4es73 [151]
Independent, and inverse means if one variable increases then the other decreases, direct is when they both go up or down together.
6 0
3 years ago
Read 2 more answers
How many neutrons are in the nucleus of an atom with an atomic mass of 80 A.M.U. and an atomic number of 35?
belka [17]

Answer:

45

Explanation:

The mass number is 80

Proton number is 35

A-P=n

80-35=45

4 0
3 years ago
5. Which of the following statements is not true regarding atmospheric pressure? A. You calculate absolute pressure by adding at
Yakvenalex [24]
The answer is C. I hope this helps :)
8 0
4 years ago
Please Help Me!!!........​
-Dominant- [34]

Answer:

.b

Explanation:

3 0
3 years ago
Other questions:
  • Air resistance is a nonconservative force. It always opposes the motion of an object. An airplane flies from New York to Atlanta
    12·2 answers
  • What part does the lens play in transmitting an image to the brain?
    14·1 answer
  • In a vertical dive, a peregrine falcon can accelerate at 0.6 times the free-fall acceleration g (that is, at 0.6 g ) in reaching
    8·1 answer
  • You wish to buy a motor that will be used to lift a30-kg bundle of shingles from the ground to the roof of a house. The shingles
    14·1 answer
  • If I0 is the intensity of the unpolarized light incident on the first polarizer, and I1 and I2 denote the intensity of the light
    14·1 answer
  • During the filming of a certain movie scene, the director wants a small car (mass 795 kg) traveling due east at 35.0 m/s to coll
    7·1 answer
  • Please help on this one?
    10·1 answer
  • • D= 50 m<br> • S= 40 m/s<br> • T= ?
    15·1 answer
  • A car is traveling with a velocity of 40 m/s and has a mass of 1120 kg. The car has ___ energy
    9·1 answer
  • Find the value of the spring constant for the spring in Trial I. Use 0.367 s for the value of the period. The mass of the suspen
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!