C) in a straight lines is the closest thing to it bc waves normally come in a wave form
Trough* and it's wave hieght
Answer: concentration in Molarity it's actually Molarity
Molarity=concentration/molar mass
Concentration=50g/0.3dm³=166.67g/dm³
Molar mass=180g/mol
Molarity=0.926mol/dm³
The complete question is;
How many Joules of heat energy would be required to raise the temperature of 16.0 g of lead from 25 degrees to its melting point of 327 degrees for a length of time long enough to completely melt the lead.
Specific heat capacity of lead is 0.159 J/gK and the molar enthalpy of fusion is 24.7 J/g
Heat is given by mcΔT
Δ T= 322 ° c = 322 +273 = 595 K
Heat = (16 × 595 × 0.159) + (24.7 × 16 )
= 1513.68 + 395.2
= 1908.88 Juoles
- The force acting on the box is 27N
- The acceleration of the car is 0.30 m/s²
- The object's mass is 2 kg
<h3>Newtons 2nd law </h3>
From Newton's second law,
F = ma
Where F is the force
m is the mass
and a is the acceleration
Q.1
Here, we are to determine the force acting on the box
m = 3 kg
a = 9 m/s²
Using the formula,
F = ma
F = 3 × 9
F = 27N
Hence, the force acting on the box is 27N
Q.2
Here, we are to determine the acceleration of the car
m = 780 kg
F = 235 N
Using the same formula,
F = ma
235 = 780 × a
a = 235 / 780
a = 0.30 m/s²
Hence, the acceleration of the car is 0.30 m/s²
Q.3
Here, we are to determine the object's mass
a = 5 m/s²
F = 10 N
Using the same formula,
F = ma
10 = m × 5
m = 10 / 5
m = 2 kg
Hence, the object's mass is 2 kg
Learn more on Newton's 2nd law here: brainly.com/question/13839211
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