Uh is this true or false?
If so yeah true a concave lens is a diverging lens.
<h2>
Answer:5
,133.6
,51.18
</h2>
Explanation:
Let , be the horizontal and vertical components of velocity.
Question a:
Horizontal component of velocity is the ratio of range and time of flight.
So,horizontal component of velocity is
So,
Question b:
Time of flight=
So,
Maximum height is given by
So,maximum height is
Question c:
The vertical velocity is already calculated in Question b.
Given:
Water, 2 kilograms
T1 = 20 degrees Celsius, T2 = 100
degrees Celsius.
Required:
Heat produced
Solution:
Q (heat) = nRT = nR(T2 = T1)
Q (heat) = 2 kilograms (4.184 kiloJoules
per kilogram Celsius) (100 degrees Celsius – 20 degrees Celsius)
<u>Q (heat) = 669.42 Joules
</u>This is the amount of heat
produced in boiling 2 kg of water.
Explanation:
To balance this equation, let us properly write it;
C₇ H ₁₆ + O₂ → CO₂ + H₂O
Every chemical equation obeys the law of conservation of matter in which the number of species on both sides must be equal.
To solve this problem, rather than inspection, we use some simple, solvable algebraic equations:
aC₇ H ₁₆ + bO₂ → cCO₂ + dH₂O
a, b, c and d are the coefficients that will balance the equation;
conserving C : 7a = c
H: 16a = 2d
O: 2b = 2c + d
let a = 1
c = 7
d = 8
b = 11
C₇ H ₁₆ + 11O₂ → 7CO₂ + 8H₂O
learn more:
Combustion brainly.com/question/6126420
#learnwithBrainly
Answer:
The impulse experienced by the object equals the change in momentum of the object. In equation form, F.t = m. Δv. In a collision, objects experience an impulse; the impulse causes and is equal to the change in momentum.