Allied is the right answer, ig.
When an astronaut brings a cube from the Earth to the Moon, the inertial mass remains constant, but the weight decreases.
<h3>What is the difference between mass and weight?</h3>
Mass of the body is defined as the amount of matter a body have. It is denoted by m and its unit is kg.
Weight is defined as the amount of force an object expert on the surface. It is given as the product of mass and the gravitational pull.
When an astronaut brings a cube from the Earth to the Moon, the inertial mass remains constant, but the weight decreases.Because the value of the gravitational acceleration is different on the moon.
Hence, option D is correct.
To learn more about the mass, refer to the link;
brainly.com/question/19694949
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Acceleration = (change in speed) / (time for the change).
Change in speed = (15 - 30) = -15 km/hr
Time for the change = 4 sec
Acceleration = (-15 km/hr) / (4 sec) = -3.75 km/hr per second .
Is that a lot ? Not much ?
Let's convert it to a unit that we can think about:
(-15 km/hr) x (1,000 m/km) x (1 hr / 3,600 sec) =
(-15 x 1,000) / (3,600) = -(4 and 1/6) m/sec .
So the acceleration of the bus is -(4 and 1/6) m/sec² .
The negative sign means that it slowed down.
(4 and 1/6) m/sec² is about 42% of the acceleration of gravity ...
the acceleration the bus would have if it drove off of a cliff.
When the car or the bus you're riding in slows down at that rate,
you feel 42% of your weight pulling you forward against your
seat belt. That's quite a drastic acceleration !
Visible light has more energy than microwaves but it has a smaller wavelength than microwave
I believe another name for lower point is Ice point