Those are the two points on the map of the stars called
the "solstices" ... one in June and one in December.
Momentum = mass x velocity, so 500kg x 2m/s = 1000 kg m/s
We will use two definitions to solve this problem. The first will be given by the conservation of energy, whereby the change in kinetic energy must be equivalent to work. At the same time, work can be defined as the product between the force by the distance traveled. By matching these two expressions and clearing for the Force we can find the desired variable.
Thus the force acting on the sled is,
Replacing,
Therefore the Force acting on the sled is 32N
Answer:
P = 5400[W]
Explanation:
We must use the following equation of kinematics to calculate the acceleration.
where:
Vf = final velocity = 9 [m/s]
Vo = initial velocity = 0 (starting from rest)
a = acceleration [m/s²]
t = time = 1.5 [s]
Now with this second equation of kinematics, we can determine the distance traveled.
where:
x= distance [m]
Now we must use Newton's second law which tells us that the sum of forces is equal to the product of mass by acceleration.
∑F = m*a
Now replacing:
Ahora la potencia se puede calcular por medio del producto de la fuerza por velocidad.
where:
P = power [W]
F = force = 600 [N]
v = velocity = 9 [m/s]
hope it helps:)
Explanation:
A galvanometer is converted into an ammeter by connecting a low resistance in parallel with the galvanometer. This low resistance is called shunt resistance S. The scale is now calibrated in ampere and the range of ammeter depends on the values of the shunt resistance.