F=ma
f?
m=1300kg
a=1.07m\s squared
f=1300kg x 1.07=1391N
Answer:
3349J/kgC
Explanation:
Questions like these are properly handled having this fact in mind;
Quantity of heat = mcΔ∅
m = mass of subatance
c = specific heat capacity
Δ∅ = change in temperature
m₁c₁(∅₂-∅₁) = m₂c₂(∅₁-∅₃)
m₁ = mass of block = 500g = 0.5kg
c₁ = specific heat capacity of unknown substance
∅₂ = block initial temperature = 50oC
∅₁ = equilibrium temperature of block and water after mix= 25oC
m₂= mass of water = 2kg
c₂ = specific heat capacity of water = 4186J/kg C
∅₃ = intial temperature of water = 20oC
0.5c₁(50-25) = 2 x 4186(25-20)
And we can find c₁ which is the unknown specific heat capacity
c₁ =
= 3348.8J/kg C≅ 3349J/kg C
Answer:
2.286 ohm
Explanation:
R1 = 16 ohm
R2 = 8 ohm
R3 = 4 ohm
They all are connected in parallel combination
Let the equivalent resistance is R.
1/R = 1/R1 + 1/R2 + 1/R3
1/R = 1/16 + 1/8 + 1/4
1/R = (1 + 2 + 4) / 16
1/R = 7 / 16
R = 16/7 = 2.286 ohm
Net flux through the cylindrical surface is given as

here q = enclosed charge in the surface
so here in order to find the value of q

so now we have

so this is the total flux
now by Gauss's law we can find the electric field




<em>by above expression we can find the electric field at required position</em>
Answer:
242.19702 N
578.46718 N
681.02785 N
Explanation:
M = Mass of the corresponding planet
r = Radius of the corresponding planet
g = Acceleration due to gravity = 9.81 m/s²
G = Gravitational constant = 6.67 × 10⁻¹¹ m³/kgs²
Mass of person

Mass is the property of an object, it is constant irrespective of the forces acting on it so the mass of the person on each planet would be the same.
Gravitational force on Mars

Magnitude of the gravitational force Mars would exert on the man if he stood on its surface is 242.19702 N
Gravitational force on Venus

Magnitude of the gravitational force Venus would exert on the man if he stood on its surface is 578.46718 N
Gravitational force on Saturn

Magnitude of the gravitational force Saturn would exert on the man if he stood on its surface is 681.02785 N