Answer:
a. i. applied force
ii. gravitational force
iii. normal force of reaction
b. net force is zero
c. we move forward
d. frictional force
e. opposite dirction of force applied
Explanation:
Answer:
True
Explanation:
Gauss's law:
It is one of the Maxwell's equations which are the foundation of Electrodynamics. According to this law magnetic field has zero divergence and magnetic monopole can't exist. Inside a closed surface, the magnetic flux inward at the south pole will be exactly equal to the outward magnetic flux at the north pole of the magnetic dipole. Thus, the net magnetic flux will be zero.
Answer:
E = F/q
Explanation:
Electric Field (E) : Electric Field (E) of an electrostatic field is defined as the force (F), per unit test charge (q) which it exert at that point. Its direction is that of the force exerted on a positive charge. The S.I unit of Electric field is Newtons per coulombs. (N/C).
Electric Field (E) can be expressed mathematically as,
E = F/q
Where F = Electrostatic force (Newton), q = charge (coulombs), E = Electric field.
Paint is immiscible because the layer that forms on top of settled paint is a substance which cannot dissolve with the rest of the paint. Stirring the paint is only temporarily in effort to form an even and thoroughly mixed solution by physically mixing the separate molecules of the solution. However, for it to be miscible, it the solution has to be evenly distributed (chemically) on a molecular level as to not separate when left for a lengthy period of time.
The energy required to raise the temperature of the air in a room by 5.0°C is 336 kJ
U = m ΔT
U = Energy
= Specific heat
m = Mass
ΔT = Change in temperature
ρ = Density
V = Volume
ρ = 1000 g / m³ (Dry air )
= 1 J / g K
ΔT = 5 °C
V = 4 * 4 * 3
V = 48 m³
m = ρ V
m = 1000 * 48
m = 48000 g
U = 1 * 48000 * 7
U = 336000 J
U = 336 kJ
Therefore, the energy required to raise the temperature of the air in a room by 5.0°C is 336 kJ
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