Answer:
P max = 1000 pa
P min = 200 pa
Explanation:
P = F/A
pressure will be maximum when surface gets minimum. so to find the maximum amount of pressure we need to calculate the minimum surface. it is 2cm×5cm = 10cm² = 0.001m² . then we have:
P = 1 / 0.001 = 1000 pa
to find minimum pressure the surface that must be chosen is 10cm×5cm = 50cm² = 0.005m² .
P = 1 / 0.005 = 200 pa
Answer:
The dog has more momentum than the pony.
Explanation:
To solve this problem, we must remember the formula for calculating momentum, which is given below:
momentum = p = m*v
where m represents the mass of the object and v represents the velocity of the object
Using this knowledge, let's calculate the momentum for the dog and the pony.
Dog: p = m*v = (2kg)*(41 m/s) = 82 kg*m/s
Pony: p = m*v = (75kg)*(1 m/s) = 75 kg*m/s
Since 82 > 75, we can conclude that the dog has more momentum.
Hope this helps!
Answer:
The answer to your question is the letter C. 3 Watts
Explanation:
Data
Power = ?
Force = 20 N
Distance = 1.5 m
time = 10 s
Formula
Work = force x distance
Power = Work/time
Process
a) Calculate the Work
Work = 20 x 1.5
Work = 30 J
b) Calculate the Power
Power = 30J/10s
Power = 3 Watts
The units of Power are Watts and the units of Work and energy are Joules.
Options:
1.Case
C2.It will be the same in all three cases.
3.Case A
4.Case B
Answer:C2. It will be the same in all three cases.
Explanation:In the above scenerio,
F, is the only net force that is acting on the System. Hence, the acceleration of the center of mass (a point in an object where a force can be applied to cause a linear acceleration without leading to an angular acceleration)is the same in each of the cases highlighted.The torque(the rotational equivalent of a linear force) depends on where the force acts.