(a) could possibly become a vector
Given,
The temperature in Fahrenheit, F=57.39 °F
The temperature can be converted from degree Fahrenheit to degree celcius using the formula,
On substituting the known values,
Thus 57.39 °F in degree celcius is 14.11 °C
Answer:
1.51×10^58 moles of photons
Explanation:
n = E/hf
E is total energy = 1×10^44 J
h is Planck's constant = 6.634×10^-34 Js/mol
f is frequency of radiation = 1×10^19 Hz (1×10^19 s^-1)
n = 1×10^44/(6.634×10^-34 × 1×10^19) = 1×10^44/6.634×10^-15 = 1.51×10^58 moles of photons
Answer: The sound is absorbed into the material on the walls
Explanation:
Answer:
x(max) = 20 m
Explanation:
In projectile shoot e have:
V₀y = V₀*sin θ
V₀ₓ = V₀*cos θ
V₀ initial speed
θ shotting angle
Vₓ = V₀ₓ = V₀*cos θ during the trajectory
Vy = V₀y - g*t
And when Vy = 0 h is maximun and the time to reach y maximum is half of the overall time.
According to that
Vy = 0 V₀y = g*t t = V₀y/g
t = 14* sinθ / 9,8
t = 1,43 *sinθ s
And overall time is T = 2* 1,43*sinθ
t = 2,86*sinθ
x = V₀ₓ * t s
x = 14*cosθ * 2,86* sinθ
x = 40 * cosθ * sinθ
Lets take two very well know sin cos pairs
for ∡ 30 ∡ 45 ∡60
and 30 and 60 are complementary angles for boths
cosθ * sinθ is the same ( 1/2)*(√3/2)
cosθ * sinθ = 0,433 and
x = 40* 0,433
x = 17,32 m
For ∡ 45 boths sin45 and cos45 are equal √2/2
In this case
x = 40*(√2/2)*(√2/2)
x = 40* 2/4
x = 20 m
And that is the maximum range
x(max) = 20 m
