Answer:
The reason is similar to the reason why it is difficult to roll an object on a surface with a positive incline than rolling it on the ground
The more the path becomes vertical, the more force we have to apply to oppose the force of gravity
but when we are moving horizontally, we don't have to move against the gravity and hence, it is less difficult than going vertically upwards
Answer:
B
Explanation:
They are the BASE elements. Cannot make them any simpler.
Answer:
Change in internal energy AU = 40 J
Explanation:
Given:
Amount of heat added = 70 J
Work done = 30 J
Find:
Change in internal energy AU
Computation:
The net thermal conductivity into a process less the net work performed by the system represents the shift in internal energy.
Change in internal energy AU = Q - W
Change in internal energy AU = 70 J - 30J
Change in internal energy AU = 40 J
Answer:
The current is 7.87 A.
Explanation:
Given that,
Length = 0.250 m
Magnetic field
Magnetic force = 0.120 N
We need to calculate the current
Using formula of magnetic force
Where, B = magnetic field
I = current
l = length
F = force
Put the value into the formula
Hence, The current is 7.87 A.
I am sorry if it didn't helped
answers;
Calculate the buoyant force of a piece of cork of 8cm3 that floats in water. Density of cork is 207kg/m3. ?
I need the mass, in order to get the volume to apply t to the Buoyancy formula of: B=(W)object=(m)object(g)
Explanation:
From Archimedes Principle, any object partially or totally submerged in a fluid is buoyed upwards with a force equal to the weight of the displaced fluid.
∴
B
=
ρ
f
l
V
f
l
g
=
1000
k
g
/
m
3
×
8
×
10
−
6
m
3
×
9
,
8
m
/
s
2
=
0
,
0784
N
(assuming the density of water is at standard temperature and pressure, and that the cork is totally submerged as it floats in the water
it's not the answer of your question ⁉️ but it is similar ........