Answer:
1,211.1 kg.
Explanation:
the force of gravity is less on the moon than on earth, so if the man can lift 200kg on earth, he could lift a greater amount on the moon because there is less resistance from gravity.
To know the amount of mass he can lift on the moon, we first need to know the amount of weight that is equivalent to those 200kg here on earth. This because the weight of the object is equal to the force that must be applied to lift it, and that force is applied by the man and it will be the same here and on the moon.
We calculate weight using the formula:
where is the weight of the object (the force with which the earth attracts the object) is the mass and g the acceleration of gravity.
so
for earth the acceleration due to gravity is:
thus:
now we use this value to calculate the mass he can lift on the moon, since for the moon .
we use the same equation, w =mg substituting w = 1962N and :
he can lift 1,211.1 kg.
You can also find the result using the approximate value of the acceleration of gravity on the moon as g/6, where g is the acceleration on earth.
Answer:
The true velocity of wind will be 43.1 km/h.
Explanation:
Given that,
Velocity of motor
The resultant velocity of wind
Suppose, the true velocity of wind is .
We need to calculate the true velocity of wind
Using formula of resultant velocity
Where, = velocity of motor
= velocity of wind
= resultant velocity
Put the value into the formula
The magnitude of true velocity is,
Hence, The true velocity of wind will be 43.1 km/h.
You mean like a box sitting on a table.
One force is the force of gravity, pulling downward on the box.
Now, you know that the forces acting on the box must be balanced, because
if they're not, then the box would be accelerating. But it's just sitting there, so
there must be some other force, just exactly the right strength and direction to
exactly cancel the force of gravity on the box, so that the net force on it is zero.
The other force is the force of the table pushing upward on the box. It's called
the "normal force".
Answer:
Liquid volume is usually measured using either a graduated cylinder or a buret. As the name implies, a graduated cylinder is a cylindrical glass or plastic tube sealed at one end, with a calibrated scale etched (or marked) on the outside wall.
B)comet nuclei are not uniform in composition