Displacement is the change in velocity of an object.

True or false

Answers

Answer 1

Answer:
Words less true are seldom if ever spoken.

Answer 2

Answer: False, it is the change in distance. Chance in velocity would be Δv

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What simple science equation explains the relationship between mass, weight and gravity.

A 2-kg rock is thrown vertically upward at a speed of 3.2 m/s from the surface of the moon. If it returns to its starting point in 4 seconds, what is the acceleration due to gravity on the moon?

Answers

Answer:

1.6 m/s2

Explanation:

Let $g_m$ be the gravitational acceleration of the moon. We know that due to the law of energy conservation, kinetic energy (and speed) of the rock when being thrown upwards from the surface and when it returns to the surface is the same. Given that $g_m$ stays constant, we can conclude that the time it takes to reach its highest point, aka 0 velocity, is the same as the time it takes to fall down from that point to the surface, which is half of the total time, or 4 / 2 = 2 seconds.

So essentially it takes 2s to decelerate from 3.2 m/s to 0. We can use this information to calculate $g_m$

$g_m = (\Delta v)/(\Delta t) = (0 - 3.2)/(2) = (-3.2)/(2) = -1.6 m/s^2$

So the gravitational acceleration on the Moon is 1.6 m/s2

What terms describes an atom's tendency to hold onto electrons

Answers

It's called Electrophily, or electron affinity.

Insulator

Insulator tendency to hold onto electrons

In a nuclear fusion reaction, what state is matter in?a. gas
b. solid
c. liquid
d. plasma

Answers

the matter is in chemical plasma

Alternatively d)

I hope I was helpfull

Answer:

plasma

Expl

This other guy said it was plasma

gabo’s constructed head no. 2 investigates the sense of ______ and form implied by flat planes, in contrast to the solid mass of conventional sculpture.

Answers

The correct answer for the question that is being presented above is this one: "Space." Gabo’s constructed head no. 2 investigates the sense of space and form implied by flat planes, in contrast to the solid mass of conventional sculpture.

Which is a chemical property of magnesium?flammability
density
melting point
magnetism

Answers

Answer:

flammability

Explanation:

As we know that chemical property of an element will show it's chemical reactivity and its chemical nature on exposing to a reaction.

While physical properties are those which can be measured by some experimental means.

So here we know that all the measurable quantities are

1). Density

2). Melting Point

Here one of the given option is phenomenon in which all the domains of magnet align itself in direction of external magnetic field it is known as Magnetism.

So here correct chemical property is

Flammability.

Final answer:

The flammability of magnesium is the chemical property among those listed. It depicts how it changes to magnesium oxide when heated in an oxygen environment.

Explanation:

The property listed that is a chemical property of magnesium is its flammability. Chemical properties describe how a substance interacts with other substances or changes from one substance to another. Flammability, meaning the ability to burn in the presence of oxygen, is a chemical property because it describes how magnesium will change to magnesium oxide when heated in air.

On the other hand, properties such as density, melting point, and magnetism are physical properties because they describe the physical state of the magnesium and not how it interacts with other chemicals.

Learn more about Chemical Property of Magnesium here:

brainly.com/question/33717506

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What are non-examples of speed?

Answers

Sitting because when you sitting your not moving around so there fore you speed would be 0 barbecue your not putting in any work

Final answer:

Non-examples of speed include acceleration, direction, time, distance, inertia, momentum, and force. These concepts relate to other aspects of motion, not the rate of motion, which speed measures.

Explanation:

Non-examples of speed would be any factors or measures that don't directly pertain to the measurement of an object's change in position or distance over time. These could include factors such as acceleration, which involves the rate of change of speed; direction, which becomes a concern when we deal with velocity, not speed; and elements like time or distance separately.

For instance, projections about gravitational pull on vehicles while in motion would be non-examples because they relate more to the forces affecting the motion, rather than the motion itself. Similarly, an object's inertia or momentum, and the force applied to an object also do not exemplify speed, as they pertain to mass and force, not the rate of motion.

It's also essential to distinguish between instantaneous speed, average speed (total distance divided by elapsed time), and constant speed (speed that doesn't change over time). These are all variations of speed, but one concept isn't interchangeable with the others based on the context of the motion being described.