Answer:
0.45 grams per cu centimeter
Explanation:
True or False: Waves become stronger as they travel away from their source
Answer:
False
Explanation:
They become weaker as they travel away from their source.
Scientists discovered how to use x-rays over 100 years ago. They found that x-rays
could pass through soft parts of the human body but were stopped by hard body
parts. How do doctors use x-rays today?
A.to find injuries
B.to cure diseases
C.to prevent illnesses
D.to protect body parts
The graph represents the percentages of salt water and fresh water on Earth. What is the percentage of salt water?
1. 3 percent
2. 50 percent
3. 97 percent
4. 100 percent
Answer:
97.
Explanation:
Though the exact number is 96.5, we can round it up since its 5. When rounding by 10, 5 or more rounds up and 4 or less rounds down. So rounding up of 96.5 is 97. 3)
The percentage of salt water is 97 percent on Earth. Hence, option (3) is correct.
What is water distribution on Earth?Saline seawater makes up the majority of the water in the atmosphere and on the surface of the Earth, with fresh water making up less than 1% of the total. The majority of the water on Earth is saline or salt water, with an average salinity of 35 ‰ (or 3.5%, or around 34 grams of salts in 1 kg of saltwater), though this fluctuates slightly depending on the amount of runoff absorbed from nearby land.
Over 97% of the water on Earth comes from the oceans and marginal seas, saline groundwater, and water from saline closed lakes, however no closed lake holds a large amount of water on a global scale. Except when evaluating water quality in arid places, saline groundwater is rarely taken into account.
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What type of energy is stored in the bonds between atoms?
Question 1 options:
Thermal Energy
Nuclear energy
Light Energy
Chemical energy
please include explanation
Answer:
chemical energy
Explanation:
Energy, potential energy, is stored in the covalent bonds holding atoms together in the form of molecules. This is often called chemical energy.
If a bowler rolls the bowling ball down the alleyway with a force of 1,000N. The ball exerts a reaction force again the alleyway with approximately how much force? Explain your thinking behind this.
Answer:
1,000
Explanation:
because the ground won't stop the ball so it is always going to stay the same
a student built a fire using coal. the coal started to burn. which statement best describes the energy changes that occurred.
A. the chemical energy stored in the coal changed to thermal energy and light energy
B. the thermal energy stored in the coal changed to light energy and chemical energy.
C. the light energy and thermal energy stored in the coal changed to mechanical energy.
D. the light energy and thermal energy stored in the coal changed to chemical energy
Answer:
98% sure the answer is A, as coal, when burning, releases thermal and light energy through the fire.
Explanation:
Mike is doing a project for science class. He is making an analogy of a cell and relating it to the structure and function of a city. He is looking for a building to represent the mitochondria. Which building in a city has a similar function and would best represent the role of the mitochondria in the cell?
Answer: Mitochondria are organelles that make energy for a cell; they are inherited from ... In this chapter, we will look at the structure and function of the eukaryotic cell. ... to functions of a city to emphasize that all parts are needed. ... We begin by looking at ... cell, as he peered through a primitive microscope of his own construction.
Which direction will heat be transferred?
Question 4 options:
From lower temperatures to higher temperatures
From higher temperatures to lower temperatures
Heat is never transferred, thermal energy is always constant.
In both directions equally
please include explanation
Answer:
From higher temperatures to lower temperatures.
Explanation: Heat goes from hot to cold. Never cold to hot.
James loves music. What would be an experiment he could conduct?
Dance to a cool song and record heart rate.
Write a song
Record his heart rate while listening to different types of music and record/compare the results.
Answer:
Record his heart rate while listening to different types of music and record/compare the results.
Answer:
Record his heart rate while listening to different types of music and record/compare the results.
Explanation:
Consider going around a horizontal turn to the right. If the coaster suddenly slipped off the track, what path would it follow? Draw a top-view sketch below.
Answer:
Explanation: It would go straight because objects in motion stay in motion and it would stay the same direction
Consider going around a horizontal turn to the right. If the coaster suddenly slipped off the track, It would go straight because objects in motion stay in motion and it would stay the same direction.
What is motion ?"Movement of any object from one position to another position with respect to the observer is called as Motion."
Motion is change of location or position of an object with respect to time. Change in motion is the result of an applied force. Motion is typically described in terms of velocity also seen as speed, acceleration, displacement, and time.
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Based on Newton’s 3rd Law of motion, if an archer shoots an arrow at the target, the action force is the bowstring against the arrow. Explain where the reaction force can be found.
Answer: the reaction force is the arrows push against the bow sting
Explanation:the two objects must react the same , bowstring and arrow.
What is the average kinetic energy of an object's particles?
Question 3 options:
Heat
Thermal Energy
Thermodynamics
Temperature
please include explanation
What is the average kinetic energy of an object's particles?
the answer is temperature
What Human Body System(s) allow for our sense of hearing and balance to occur?ФωФ
Answer: the ear is a sensory organ that picks up sound waves allowing us to hear
Explanation: a sensory organ that lets us hear.
HElP thank you pLeAsE
Answer:
Cell membrane
Explanation:
I've done this before
who like countrie music give me a straghit awncer and i will create a nother one
Apple juice in a bottle has a volume of 475 cubic centimeters and a mass of 494 grams .Calculate its destiny