Answer:
6/2times500=1500
Explanation:
s = d/t which means speed equals distance divided by time.
Answer:
The density of the block is 7.4g/ml.
Explanation:
We can determine the volume of the metal block by taking the difference between the volumes measured in the graduated cylinder:
Now, as we know that the average density of an object is calculated dividing its mass by its volume, we can calculate the density ρ of the metal block using the expression:
Finally, it means that the density of the metal block is 7.4g/ml.
Answer:
16 Newtons
Explanation:
We will use the equation F=ma
First, find the acceleration using the givens.
a=∆v/∆t
a=15-3/3
a=12/3
a=4 m/s^2
Next, plug the acceleration and mass into the equation.
F=ma
F=4kg(4m/s^2)
F=16 Newtons
B. Neutrons or Protons Adding or removing protons from the nucleus changes the charge of the nucleus and changes that atom's atomic number. For example, adding a proton to the nucleus of an atom of hydrogen creates an atom of helium. (Actually, a few neutrons have to be added as well to make the new nucleus stable, but the end result is still helium.)
Answer: velocity = 50m/s
Distance moved=5m
Explanation:
Using the formula Ft=Mv i.e impulse= momentum
Where F= force ,t= time, M= mass, v = velocity
In this case we need to find v,
F,t,M are all given in the question.
Therefore, substituting the values we have
250N×0.1s=0.5kg×v. Mass=500g= 0.5kg
v=25/0.5= 50m/s
The distance the puck will move when it is on his stick.
D= Velocity × time
D=50m/s × 0.1s
D=5m
Goodluck...
