Answer:
Coefficient of kinetic friction = 0.38 (Approx.)
Explanation:
Given:
Applied force = 45 N
Mass of wooden crate = 12 kg
Find:
Coefficient of kinetic friction
Computation:
Coefficient of kinetic friction = Applied force / (Mass)(Acceleration due to gravity)
Coefficient of kinetic friction = 45 / (12)(9.8)
Coefficient of kinetic friction = 45 / 117.6
Coefficient of kinetic friction = 0.3826
Coefficient of kinetic friction = 0.38 (Approx.)
Answer: 202.1 m/s
Explanation:
Given that,
acceleration of rocket (A) = 2.15 m/s2 velocity (V) = ?
Time taken (T) = 94.0 seconds
Since acceleration is the rate of change of velocity per unit time
i.e Acc = velocity / time
Velocity = Acceleration x time
V = (2.15 m/s2 x 94.0 seconds)
V = 202.1 m/s
Thus, the velocity is 202.1 m/s
Answer:
The answer is 1200 Kg
Explanation:
<h3><u>Given</u>;</h3>
<h3>
<u>To </u><u>Find</u>;</h3>
<h3><u>Formula</u>;</h3>
- W = m × g
- where, W = weight
- m = mass,
- g = Acceleration due to gravity = 10 m/s²
Now,
W = mg
12000 = m ÷ 10
m = 12000 ÷ 10
m = 1200 kg
Thus, The mass of car is 1200 kg or 1.2k Kg.
<u>-TheUnknownScientist 72</u>
Answer:
457.8394 K
Explanation:
= Escape velocity = 2.38 km/s
T = Temperature
R = Gas constant = 8.314 J/mol K
M = Molar mass = 2.016 g/mol
The rms velocity of a molecule is given by
Here,
The temperature of the hydrogen molecule would be 457.8394 K
You've built quite a convoluted question there, Thelo.
If you wrote what you mean and I read it correctly, then the phrase
in the blank is "... the loss of energy to friction in the machine ...".