Required Heat = Q
Q = Mass * specific heat of water * change in temp.
Q = 5g * 1g/cal*degC * 20degC
Q = 100 cal of heat is required
To convert calories to Joules,
1 cal = 4.184 Joules
100cal = 418.4 J of heat is needed
Answer:
<h2>90 J</h2>
Explanation:
The work done by an object can be found by using the formula
workdone = force × distance
From the question we have
workdone = 30 × 3
We have the final answer as
<h3>90 J</h3>
Hope this helps you
<h2>
Answer:The more precisely you know the position of a particle, the less well you can know the momentum of the particle</h2>
The Heisenberg uncertainty principle was enunciated in 1927. It postulates that the fact that each particle has a wave associated with it, imposes <u>restrictions on the ability to determine its position and speed at the same time. </u>
In other words:
It is impossible to measure simultaneously (according to quantum physics), and with absolute precision, the value of the position and the momentum (linear momentum) of a particle.
<h2>So, the greater certainty is seeked in determining the position of a particle, the less is known its linear momentum and, therefore, its mass and velocity. </h2><h2 />
In fact, even with the most precise devices, the uncertainty in the measurement continues to exist. Thus, in general, the greater the precision in the measurement of one of these magnitudes, the greater the uncertainty in the measure of the other complementary variable.
Answer:
780
Explanation:
The equation used to find the speed of a waveform is V = f λ
You are given
f = 1200Hz
λ = 0.65m
and need to find V
Plug in your values to the equation
V = 1200 * 0.65
V = 780
A moment is not measured by the breaths we take, but by the moments that take our breath away
Also with time increments. (seconds minutes hours etc.)
