Help please I can't do these !!!!You throw a rock off the top of a building located on the Planet Mars with an initial velocity of10.0 m/s. The force of gravity on Mars is ⅓ that of Earth. It takes 12.0 s to hit the ground. How tall is the building?

You shot a gun straight up into the air with a velocity of 500 m/s. How long will it take beforeit hits the ground again?

You shoot a gun with a initial velocity of 500 m/s horizontally at the exact instant you drop arock from exactly the same height (at 1.6 m off of the ground). Which one will hit the ground first.

Answers

Answer 1

Answer: 1) G.mars= 9.8x(1/3)=3.26
Vi=10 m/s , T=12 sec
Dis. = Vi(t)+1/2(g)(t)^2
(10)(12)+1/2(3.26)(12)^2= 354.72
2)V=500 m/s
Hmax= v^/2(g) = 500^2/2(9.8) = 12755.1

Related Questions

energy in the form of electromagnetic radiation. Most often associated with a wavelength that is visible to the eye
Okay! Last question was a warm-up question. And now to get your brain thinking some more, how about another one?:First you eat me, then you get eaten. What am I?
How did scientists boost the spacecraft Juno on its way to Jupiter, helping it overcome the gravitational pull of the Sun?
Please need help with this one
The rate at which work is done is

While performing an experiment involving a reaction between two chemicals, the scientist observes that the reaction container has become warm. The observation is an example of:

Answers

Explanation:

In an exothermic reaction, heat is released into the surroundings. In this type of reaction, energy of products is less than the energy of reactants.

In an endothermic reaction, heat is absorbed by the reactant molecules. In this type of reaction, energy of products is more than the energy of reactants.

Therefore, we can conclude that while performing an experiment involving a reaction between two chemicals, the scientist observes that the reaction container has become warm. The observation is an example of exothermic reaction.

When an object is becomes warm its an example of exothermic reaction.

A watershed exists in a mountainous area. In which type of water body will the water flow the fastest? aquifer, tributary, lake, or a river

Answers

That would be Letter B. Lake

Answer:

the the waterside exits in a mountain in in our river

Explanation:

the water comes from the Icebergsand foam water bodies and make a river and then it forms lakes and tributaries

_________ are devices that move atomic nuclei at extremely high speeds

Answers

Particle accelerators are devices that move atomic nuclei at extremely high speeds.

♡♡Hope I helped!!! :)♡♡

Particle Accelerators are the devices that move atomic nuclei at extremely high speeds. This device uses electromagnetic fields to propel charged particles to high speeds.

When a space shuttle was launched, the astronauts aboard experienced and acceleration of 29.0 m/s. If one of the astronauts had a mass of 69.0 kg, what net force in newtons did the astronaut experience?

Answers

   Net force = (mass) · (acceleration)

   = (69 kg) · (29 m/s²)

   = (69 · 29) · (kg·m/s²)

   = 2,001 Newtons upward
   (about 450 pounds)

Which organisms play roles similar to organisms in water ecosystem

Answers

Is there a multiple choice?

Why is it important that the mouth and stomach are near the start of the digestive system? thx

Answers

Answer: To complete the process of digestion after the food is ingested by mouth.

Explanation:

The food that we eat is ingested by mouth and here the mechanical degradation of food takes place. This breaks down the food into smaller pieces.

Mouth also contains the enzyme that is responsible for the digestion of starch.

Then the food from the mouth reaches the stomach where various types of digestive juices and enzymes are secreted to digested the food.

Hence, mouth and stomach must be near in the digestive system.

Because the mouth breaks down the food and the stomach uses acid to break food down even more

Other Questions

Why didn't the first stars to form have solar systems with Earth like planets and satellites?

Can you guy pleas answer this questions4. Would you expect a substance to be a solid, liquid, or gas at absolutezero? Explain your answer.5. Describe what happens, at the molecular level, during melting.6. Describe what happens, at the molecular level, when a substance boils.7. What is the most common phase of matter in the universe?8. What is plasma? Where can you find plasma?

1. How would you calculate the atomic mass of an atom of silver (Ag)?2. The element chlorine (Cl) has 17 protons and 17 electrons. What happens to an atom of chlorine (Cl) if it gains an electron?3. How does an atom differ from a molecule?4. How do protons, neutrons, and electrons differ?5. The element lithium (Li) has 3 protons and 3 electrons. The element fluorine (F) has 9 protons and 9 electrons. An atom of the element lithium (Li) transfers an electron to an atom of the element fluorine (F). Which type of bond results between the atoms, and what happens to the charges in each of the atoms?6. Why do the minerals graphite and diamond look different even though they’re made from the same element, carbon (C)?

True or False: We have a limited amount of fossil fuels. True. False.