<u>what's</u><u> </u><u>your </u><u>question </u><u>O_</u><u>-</u><u> </u><u>?</u><u>?</u>
<u>you </u><u>have </u><u>given</u><u> </u><u>the</u><u> </u><u>es</u><u>s</u><u>ay,</u><u> </u><u>but </u><u>wts </u><u>the </u><u>topic </u><u>?</u><u> </u><u>lol</u>
Answer:
Work done, W = 39.2 J
Explanation:
It is given that,
Mass of the block, m = 2 kg
The block is lifted vertically 2 m by the man i.e the distance covered by the block is, h = 2 m. The man is doing work against the gravity. It is given by :
Where
g is acceleration due to gravity
W = 39.2 J
So, the work done by the man is 39.2 J. Hence, this is the required solution.
Answer:
Explanation:
Given parameters:
Distance covered = 16m
Time = 6s
Initial velocity = 0m/s
Unknown:
Magnitude of the acceleration of the runner = ?
Solution:
To solve this problem, we have to apply the right motion equation which is given below;
S = ut + at²
S is the distance
u is the initial velocity
t is the time taken
a is the acceleration
Now, insert the parameters and solve for acceleration;
16 = (0 x 6) + x a x 6²
16 = 18a
a = = 0.89m/s²
The magnetic north pole of the earth's magnet is in the geographic south pole.
- There are two magnetic and geographic poles each, north and south
- The two geographic poles are the locations where the earth's axis of rotation passes through which is imaginary
- The magnetic north and south poles are not the same as the geographic north and south poles
- In a compass, the needle points to the magnetic north pole
- By convention, the magnetic north pole corresponds to the geographic south pole
- The magnetic south pole corresponds to the geographic north pole
- The magnetic field lines of a magnet start from the magnetic north pole and end at the magnetic south pole
The magnetic north pole of the earth's magnet is the geographic south pole.
Learn more about earth's magnetism here:
brainly.com/question/3928159
#SPJ10
Answer:
Weight = 490 N
Explanation:
The two forces labeled and are the force of gravity and the normal force that the surface acts upon the object. These are equal and in opposite directions cancelling each other.
The other two forces and are both pointing to the right, and therefore add up to give a net force of:
50 N + 75 N = 125 N pointing to the right.
Since the net acceleration of the object is given as 2.5 , we can use it in Newton's equation for the net force on an object to solve for the object's mass:
Notice that since all units are in the SI system, the mass comes directly in kilograms (unit of mass in the SI system)
Now, to find the weight of the object, we multiply its mass times the acceleration of gravity (9.8 ):
Weight =
Again, since all quantities are expressed in SI units, the weight (a force) will come out in units of "Newtons" (N)