Answer:
An example of positive velocity is throwing a ball upwards
An example of downward vertical velocity is when an object is dropped, for example a ball dropped from a height
Explanation:
In a vertical movement the acceleration is always downwards, therefore negative since it is created by the attraction of the Earth on the body.
An example of positive velocity is throwing a ball upwards
An example of downward vertical velocity is when an object is dropped, for example a ball dropped from a height
Answer:
35.36776 Hz
Explanation:
B = Magnetic field = 
= Maximum voltage = 20 V
d = Diameter of coil = 40 cm = 0.4 m
A = Area = 
N = Number of turns = 500
= Angular velocity
Maximum emf is given by

The angular velocity would be 35.36776 Hz
Answer:
455,000 Pa
Explanation:
PV = nRT
If n is constant:
PV / T = PV / T
(101,325 Pa) (718 mL) / (273 K) = P (175 mL) / (26 + 273) K
P = 455,000 Pa
<span>The speed that reactants are converted into products is Reaction Rate. Reaction Rates describe slow reactions like rusting of an iron bar or fast reactions like combustion of gasoline in a car engine. This is extensively studied in the field of Chemical k</span>