Answer:
v = 31.3 m / s
Explanation:
The law of the conservation of stable energy that if there are no frictional forces mechanical energy is conserved throughout the point.
Let's look for mechanical energy at two points, the highest where the body is at rest and the lowest where at the bottom of the plane
Highest point
Em₀ = U = m g y
Lowest point
= K = ½ m v²
As there is no friction, mechanical energy is conserved
Em₀ =
m g y = ½ m v²
v = √ 2 g y
Where we can use trigonometry to find and
sin 30 = y / L
y = L sin 30
Let's replace
v = RA (2 g L sin 30)
Let's calculate
v = RA (2 9.8 100.0 sin30)
v = 31.3 m / s
Explanation:
1)a=16m
b=28m
c=10m
volume of one box: V=16*28*10=4480m³
volume of 100 boxes: 4480*100=448000m³
2) 1960
3) 7: meter-length, kilogramme-mass, second-time, ampere-electric current, kelvin-temperature, candela-luminous intensity, mole-amount of substance
4)Area: S=a*b
Volume: V=a*b*c
<span>A continuous spectrum is one where the light emitted goes along the entire spectrum. A line spectrum is one that only emits a few frequencies. </span>
Answer:
0.002T
Explanation:
It is given that,
Distance between two parallel wires, d = 5 mm = 0.005
Current in each wire, I = 60 A
Let B is the magnitude of the magnetic field at a point that is between the two wires and 2.0 mm from one of the two wires.
calculating the magnetic field due to first wire is given by :
The magnetic field due to second wire is given by :
Let B is the net magnetic field from wire A, so,
Answer:
a= 0.5m/s^2
Explanation:
Force applied on an object is known as
F=m.a (Newton's second law states it)
a=F/m
a=5/10=0.5m/s^2