PLEASE HELP


Write a word problem involving potential energy using the following variables: Potential Energy = 16 J
Acceleration due to gravity on Earth = 9.8 m/s^2
Mass = 7 kg
Think about what information you are missing and what the problem could be asking you to solve. Make sure to include the solution to your problem. (Potential energy = 9.8 x mass x height)
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Write a word problem involving kinetic energy using the following variables: (Kinetic energy = 0.5 x mass x speed^2)

•Kinetic energy = 316 J
•Speed = 10 m/s

Think about what information you are missing and what the problem could be asking you to solve. Make sure to include the solution to your problem.

Explanation:

1st.

potential energy = 16 j

acceleration d t gravity = 9.8 m/s²

mass = 7 kg

we know

pe = m×g×h

16 = 7 × 9.8 × h

16 = 68.6h

16/68.6 = h

h = 2.16

2nd :

ke = 316 j

s = 10

we have

ke = 0.5×m×s²

316 = 0.5 × m × 10²

316 = 0.5 × m × 100

316 = 50m

316/50 = m

6.32 = m

m = 6.32 kg

may be check it once cuz I'm also not perfect at numericals too . I'm just 14 yo girl lol.

hope this helps :)

Divers found two substances on the bottom of the ocean. At room temperature, both substances are liquid. Scientists then transferred the same amount of energy out of both substances. When a scientist checked again, Substance 1 had changed phase, but Substance 2 had not. How are Substances 1 and 2 different?

How many steps or minutes would it take to burn off 890 calories?

What trait (dark or light moth) is an advantageous trait in the light forest?

Taylor created the following table to compare the three types of rocks. What correction needs to be made to the information in the table?

Examples of igneous rock are sandstone and limestone and examples of sedimentary rock are granite and basalt.

Examples of igneous rock are granite and marble and examples of metamorphic rock and basalt and gneiss.

Metamorphic rocks are made from the cooling and hardening of sediment and igneous rock is made from high heat and pressure causing chemical change.

Igneous rocks are the cooling and hardening of magma or lava and sedimentary rock is made of sediment cemented together.

Describe the transfer of energy that occurs when you drop a book on the floor. Please include all possible forms.

what happens to suns energy while it travels to earth's atmosphere

A: Some of it is destroyed in Earth's atmosphere.
B: It is completely trapped by Earth's surface.
C: It is all reflected back into space.
D: Some of it reaches Earth's surface.

Please help!!

Data just came in about the space pod's mission and the thrusters fired for exactly the same about of time and at the same force as they have in past missions. Nothing about the pod's thruster force was different. Based on this new evidence, neither of our previous claims could be true!


We are left with the same question: why didn't the pod dock like it was supposed to do?
What new theories do you have?

Which of these actions requires KINETIC Energy? Choose all of the correct answers.

- Sleeping
- Swimming
- Turning a doorknob
- Listening to music
- Hitting a tennis ball
- Waiting at a red light

What is the speed of light in a vacuum?

300,000 km/sec
100,000 km/sec
500,000 km/sec
250,000 km/sec

Describe a situation where you can be traveling at a low speed but have an extremely high velocity

Please answer this question fast

Does a tree falling over in a forest make a sound if there is no receptor (human or animal ear) to hear it? In your answer, describe why you think it does or does not. Describe how you would test your hypothesis. Use relevant terms.

A pumpkin with a mass of 2.5 kg was pushed toward a wall. The average acceleration of the pumpkin was 10.7 m/s2.

How much force was applied to the pumpkin to make it move?

A. 4.28 N

B. 4.28 m/s2

C. 26.75 m/s2

D. 26.75 N

Which observation indicates a chemical property?


slowly dissolves


turns cloudy


turns black


gritty

50 points for 5 questions p.s if u get brainliest u get 50 moe and then u have 100 SO YAAAAAAY

1.What can federal appeals courts do?



Choose all answers that are correct.


Overturn the decisions of the district courts.


Remand cases back to lower courts.


Uphold the decisions of the lower courts.


Recommend cases be heard by the Supreme Court.
2.Why do the losing parties in civil trials and convicted criminals seek to involve the federal appeals courts in their cases?


because they feel that laws were incorrectly interpreted or applied in their cases


in order to force the winning side or the prosecution to present its evidence again


because they believe that their cases should be heard by magistrate judges


so that new appellate juries will hear the facts of their cases
3.How are federal judges selected?


Candidates are nominated and appointed by the Supreme Court unless the president uses the veto.


Candidates are nominated by Congress and voted upon by citizens over the age of 18 in federal elections.


Candidates are nominated by current federal judges and appointed by Congress if the House approves by a two-thirds majority vote.


Candidates are nominated and appointed by the president if the Senate approves by a majority vote.
4.What are two roles of magistrate judges?



Choose exactly two answers that are correct.


to hear preliminary evidence and decide if a case should be brought to trial


to appoint the U.S. attorney(s) for their districts


to issue court orders, such as search warrants


to deliver rulings on major cases involving federal law
5.What is the main duty of the United States Supreme Court?


to sentence or parole convicted criminals


to appoint judges to lower federal courts


to hear and rule on cases


to ratify or veto new laws thx UwU

Study the image of the moving car.

While traveling downhill, the car’s potential is ________ and kinetic energy is _______.

- Increasing
- Decreasing
- Staying the same

Place the locations of a watermelon in order from MOST to LEAST potential energy.

- On a roof
- Above a refrigerator
- On the ground
- Aboard a flying airplane
- On top of a table

In a racquetball game, your opponent repeatedly hits the same type of serve off the front wall and it lands in approximately the same location each time. A good defensive strategy to return the serve would be:

(A)Begin in a different place on the court so your opponent serves there
(B) Begin moving in anticipation of where the ball will land
(C)Stay in ready position and move only when the ball lands
(D)Stay in ready position and wait to see if it bounces off a side wall

Study the image of the moving car.

A car that is driving at the flat bottom of the hill would have ______ potential energy and _______ kinetic energy.

- High
- Low
- Equal

Sort the benefits and consequences of using hybrid vehicles into the correct categories.

At the Winter Solstice the Sun's rays are directly perpendicular to what location on the Earth?
Tropic of Capricorn
Tropic of Cancer
The Equator
Antarctic Circle

A group of students is tasked with developing a checklist for determining whether a material undergoes a chemical or physical change. The students make a preliminary list of properties that they can test and classify each as either a chemical or physical property.

Chemical Property Physical Property
bubbles when treated with acid color
burns when placed in a candle flame odor
density hardness
boiling point mass
dissolves in water melting point
Several other students in the class claim that the checklist is incorrect.

What change should the group make to the checklist to correct their mistake?


Boiling point and density should be moved to the physical property side of the list, and color and odor should be moved to the chemical property side of the list.


Boiling point and density should be moved to the physical property side of the list, and hardness and mass should be moved to the chemical property side of the list.

Dissolves in water and boiling point should be moved to the physical property side of the list, and odor and mass should be moved to the chemical property side of the list.

Density and boiling point should be moved to the physical property side of the list.

please help

look at the diagram of the bicycle chain and the cogs above. Explain in detail why you exert a force on the pedals, but you still obey the law of conservation of energy.

Explain each of Newton’s three laws :

a. Law of Inertia
b. Law of Force and Acceleration
c. Law of Action/Reaction

no links please !

A crate is pushed up each of the two ramps shown in the diagram below. Based on the concept that simple machines make work easier, and assuming that both ramps are frictionless, which statement is true? Question 4 options: Ramp B requires less force than ramp A. Ramp A requires less force than ramp B. Ramp B raises the crate higher than ramp A. Ramp A raises the crate higher than ramp B.

50 points for 5 questions p.s if u get brainliest u get 50 moe and then u have 100 SO YAAAAAAY p.s dont answer the new one i for got to add the points
1.What can federal appeals courts do?



Choose all answers that are correct.


Overturn the decisions of the district courts.


Remand cases back to lower courts.


Uphold the decisions of the lower courts.


Recommend cases be heard by the Supreme Court.
2.Why do the losing parties in civil trials and convicted criminals seek to involve the federal appeals courts in their cases?


because they feel that laws were incorrectly interpreted or applied in their cases


in order to force the winning side or the prosecution to present its evidence again


because they believe that their cases should be heard by magistrate judges


so that new appellate juries will hear the facts of their cases
3.How are federal judges selected?


Candidates are nominated and appointed by the Supreme Court unless the president uses the veto.


Candidates are nominated by Congress and voted upon by citizens over the age of 18 in federal elections.


Candidates are nominated by current federal judges and appointed by Congress if the House approves by a two-thirds majority vote.


Candidates are nominated and appointed by the president if the Senate approves by a majority vote.
4.What are two roles of magistrate judges?



Choose exactly two answers that are correct.


to hear preliminary evidence and decide if a case should be brought to trial


to appoint the U.S. attorney(s) for their districts


to issue court orders, such as search warrants


to deliver rulings on major cases involving federal law
5.What is the main duty of the United States Supreme Court?


to sentence or parole convicted criminals


to appoint judges to lower federal courts


to hear and rule on cases


to ratify or veto new laws thx UwU p.s dont answer the new one i for got to add the points

What three sprites are needed to create the Space Invaders game that was discussed in the unit? spaceship, laser, enemy gnome, alien, star moon, sun, rocket spaceship, alien, black hole

What best explains the changes you observed in the moth populations?

50 points for 5 questions p.s if u get brainliest u get 50 moe and then u have 100 SO YAAAAAAY
1.What can federal appeals courts do?



Choose all answers that are correct.


Overturn the decisions of the district courts.


Remand cases back to lower courts.


Uphold the decisions of the lower courts.


Recommend cases be heard by the Supreme Court.
2.Why do the losing parties in civil trials and convicted criminals seek to involve the federal appeals courts in their cases?


because they feel that laws were incorrectly interpreted or applied in their cases


in order to force the winning side or the prosecution to present its evidence again


because they believe that their cases should be heard by magistrate judges


so that new appellate juries will hear the facts of their cases
3.How are federal judges selected?


Candidates are nominated and appointed by the Supreme Court unless the president uses the veto.


Candidates are nominated by Congress and voted upon by citizens over the age of 18 in federal elections.


Candidates are nominated by current federal judges and appointed by Congress if the House approves by a two-thirds majority vote.


Candidates are nominated and appointed by the president if the Senate approves by a majority vote.
4.What are two roles of magistrate judges?



Choose exactly two answers that are correct.


to hear preliminary evidence and decide if a case should be brought to trial


to appoint the U.S. attorney(s) for their districts


to issue court orders, such as search warrants


to deliver rulings on major cases involving federal law
5.What is the main duty of the United States Supreme Court?


to sentence or parole convicted criminals


to appoint judges to lower federal courts


to hear and rule on cases


to ratify or veto new laws thx UwU

Study the image of the moving car.

While going uphill, the car’s potential energy is ________ and kinetic energy is ________.

-Increasing
-Decreasing