B. a boulder falling off a cliff in a straight path
C. a ball being thrown straight up
D. a bicyclist moving in a straight line at a constant speed
Accelerated motion refers to any motion with changing velocity, including changes in speed or direction. Most of the examples provided involve accelerated motion, except for the bicyclist moving in a straight line at a constant speed, as both speed and direction remain constant in such scenario.
In the context of physics, accelerated motion refers to any motion in which the velocity changes - either in magnitude (speed) or direction. This can be due to an increase or decrease in speed, or a change in direction. Examples of accelerated motion include an airplane taking off down a straight runway, a boulder falling off a cliff in a straight path, and a ball being thrown straight up.
However, a bicyclist moving in a straight line at a constant speed is NOT an example of accelerated motion. In this case, the speed (magnitude of velocity) and direction are both constant, and therefore there is no acceleration present.
#SPJ6
Answer:
D. A mechanical wave travels through matter, while an electromagnetic wave travels through empty space.
Explanation:
Answer:
The total mass of the abattoir is 100 grams. When you add 100 ml of water and 50 ml of oil, you need to consider the density of these substances to calculate their mass.
The density of water is approximately 1 gram per milliliter (g/ml). So, 100 ml of water has a mass of 100 grams.
The density of oil can vary depending on the type, but for a rough estimate, we can assume it's around 0.9 grams per milliliter (g/ml). So, 50 ml of oil has a mass of 50 x 0.9 = 45 grams.
Now, you can calculate the total mass:
Total mass = Mass of abattoir + Mass of water + Mass of oil
Total mass = 100 grams + 100 grams + 45 grams
Total mass = 245 grams
The total mass when 100 ml of water and 50 ml of oil are added to the abattoir will be 245 grams.
Explanation:
B. has the ability to create static discharge
C. has an excess or shortage of electrons.
D. has a large atomic nucleus
Before the fuel is burned, it's chock full of chemical energy. When the fuel is burned, the chemical energy is released, and it escapes in the form of heat and light energy.
Answer:
¨chemical energy¨ is released.