Answer:
Impulse = 0.9408Ns
Explanation:
Impulse is the product of force and time
Impulse = Ft
Given
Force F = mg
F = 12(9.8)
F = 117.6N
Time = 8 * 10^-3 = 0.008s
Get the impulse
Impulse = 117.6*0.008
Impulse = 0.9408Ns
Answer:
44.64335 L
Explanation:
R = Gas constant = 8.314 J/mol K = 0.08205 L atm/mol K
P = Pressure
V = Volume
T = Temperature = 438 K
1 denotes initial
2 denotes final
From ideal gas law we have
So,
The volume of Helium is 44.64335 L
The correct option is <u>D</u>.
Qualitative observations are observations that are made using our senses of sight, hearing, smell, taste and feel. These observations do not involve numbers or measurements of any kind.
The student's observations regarding the squirrel as is mentioned in options A, B and C involve measurements. Therefore these are not qualitative observations.
Option D, however, is made on the basis of sight, where the student observes the squirrel moving in a zigzag manner.
Therefore, of all the three observations, the student's observation that the squirrel ran in a zigzag pattern is the qualitative observation.
Answer: Stationary or constant velocity
Explanation:
Objects with balanced forces acting on them experience no change in motion, or no acceleration. So these objects could either be stationary at rest or have a constant velocity. These include a hanging object, a floating object, an object on a table that doesn't move, and a car moving at a constant 10 mph
