Una bola de ping pong de 10 g. de masa rueda a 10 m/s hacia una bola de pool de 250 g de masa, inicialmente quieta. Luego del ch
1 answer:
You might be interested in
Answer:
V(t1-t0)
Explanation:
Moving 'uniformly' means constant velocity (speed). the formula for constant speed motion is =( change in position/ change in time)
where,
V is speed
given in the statement :
change in time = t = t1-t0
let the constant speed be ' V '
disance = X = X1-X0
applying the above mentioned formula: V =
V = X/t
X = Vt
the distance X1-X0 = Vt =V(t1-t0)
Answer:
32cm³
Explanation:
Given parameters:
Density of substance = 2.7g/cm³
Mass of substance = 86.4g
Unknown:
Volume of substance = ?
Solution:
Density is the mass per unit volume of a substance.
Density =
Since the unknown is volume we solve for it;
mass = density x volume
86.4 = 2.7 x volume
volume = = 32cm³
Answer:
The change in current at is
Explanation:
From the question we are told that
The resistance is
The current is
The change in voltage with respect to time is
The change in resistance with time is
According to ohm's law
differentiating with respect to time using chain rule
substituting value at R = 456