Answer:
The weight of an object would be less on the moon than on the earth
Explanation:
Thus, our object has mass m both on the surface of the Earth and on the surface of the Moon, but it will weigh much less on the surface of the Moon because the gravitational acceleration there is a factor of 6 less than at the surface of the Earth.
A 2-kg bowling ball sits on top of a building that is 40 meters tall.
GPE
A 2-kg bowling ball rolls at a speed of 5 m/s on the roof of the building that is 40 tall
its moving n its on top of a bldg. so ans is both KE n GPE
A 2-kg bowling ball rolls at a speed of 10 m/s on the ground.
KE
A 20-kg child is tossed up into the air by her parent. The child is 2 meters off the ground traveling 5 m/s.
moving n in the air. ans is both KE n GPE
eqn: KE= 1/2mv^2, GPE=hmg
A 1,000-kg car has 50,000 joules of kinetic energy. What is its speed?
50000=1/2*1000^v^2
v=10m/s
A 200-kg boulder has 39,200 joules of gravitational potential energy. What height is it at?
39200=200*9.8*h
h=20m
A 1-kg model airplane has 12.5 joules of kinetic energy and 98 joules of gravitational potential energy. What is its speed? What is its height?
12.5=1/2*1*v^2
v=5m/s
98=1*9.8*h
h=10m
If a person want to move a <span>heavy box across the room, he must apply a force that is greater than starting frictional force acted on the heavy box in order to get the box in motion. the frictional force is equal to coefficient of friction times the normal force, and normal force is approximately the weight of the object. so the force that must be applied must be greater than the wieght of the object.</span>
Almost true but not quite.
That would give you the negative of the actual acceleration.
It should be the other way around:
(final v) minus (initial v), then divide by time.
The study of the atom contributed to our understanding of the periodic table of the elements in the following way: experiments that identified characteristics of atoms provided scientists with atomic weights and atomic numbers, which were used to organize the periodic table.
<h3>PERIODIC TABLE:</h3>
The periodic table is an organized table of the chemical elements arranged in order of their atomic number
The periodic table consists of rows called periods and columns called groups. Each element in the periodic table is made up of its own individual atom.
Hence, the experiments conducted on these atoms provided the atomic numbers and masses used as a template to organize each element in the periodic table.
Learn more about atoms at: brainly.com/question/13981855