Physics

Which is NOT a characteristic ofthe temperate region?A. a lot of organic matterB. moderate temperaturesC. moderate rainfallD. under-developed soil horizons
1 Answer
A rock with a 8 kg mass is tied to a string and swung in a circular path. The 1.8 meter string is tied to a post, and during the motion, the string has a 35 angle with the post. The rock makes 100 rounds in 3 minute. The centripetal force on the ball is __ N.
1 Answer
if i were to (HYPOTHETICALLY) punt a small child off of a building, (HYPOTHETICALLY) how long would it take for the (VERY HYPOTHETICAL) child to reach maximum velocity?(HYPOTHETICALLY) the child would weigh 88 pounds, have blond hair and blue eyes, and (HYPOTHETICALLY) be named "Jacob."THIS QUESTION IS HYPOTHETICAL AND I AM TOTALLY NOT PLANNING TO COMMIT AN ATROCITY!
1 Answer
What does a 'dead' battery mean chemically? a) q > 1 b) q < 1 c) q = 1 d) q = k e) q/k = 0
2 Answers
Using the model above, which letter represents the position of the earth when the northern hemisphere is experiencing the shortest hours of daylight ABCD
1 Answer
A student wants to make a scientific explanation regarding the wave model of electromagnetic radiation. Which of the following would be part of the scientific explanation?(1 point)claimsopinionshistorical eventsprocedures
2 Answers
Help please. Will give brainliest
1 Answer
I have an answer but I'm not it sure about it. I just need someone to help confirm it. Thanks
1 Answer
A 1.2-kg hot iron sphere with heat capacity576 J C-1 is cooled by immersing it in a tank ofwater (Fig g). (See the photo that I uploaded)The mass of the water is 3 kg andits initial temperature is 12 C. After 5 minutes,both the iron sphere and the water reach a finaltemperature of 15 C.(a) Find the energy gained by the water.(b) Find the average rate of energy transfer fromthe iron sphere to the water. (c) What is the initial temperature of the ironsphere?
1 Answer
PLEASE HELP ASAP1) During a transformation, a positive radon nucleus repels a positive helium nucleus(m = 6.64 1027 kg), giving it an energy of 7.37 1013 J. How fast is the heliumnucleus moving when it is far away from the radon nucleus? Draw an energy bar chartto assist you.2) A positive charge of +7.2 C and a positive charge of +6.64 C are 10 cm apart, atrest. After t seconds, the particles are at a distance 15 meters apart with velocities8.7 m/s and 9.1 m/s, respectively. Draw an energy bar chart of the situation anddetermine the direction of the forces and velocities of each charge.
1 Answer
how many electrons flow through a 3 A current in 3 seconds
1 Answer
help me with this one aswell, too confused and tired for this
1 Answer
A microwave has a period 0.000015 s has a wavelenth of ?(Round your answer to the nearest hundreth. Add a zero to the begining of the number if necessary.)
1 Answer
Which of the following statements about waves are true? Select all that apply.OSound waves cannot travel through empty space.Sound waves can travel through liquids.Light waves are not true waves.Light waves need matter in order to travel.Waves can only move matter up and down or from side to side.
2 Answers
Which statement correctly describes the relationship between frequency and wavelength?A :As the frequency of a wave increases, the longer its wavelength isB: As the frequency of a wave increases, the shorter its wavelength is.C: As the frequency of a wave increases, its wavelength remains the same.
2 Answers
Which is NOT a part of transverse waves?A. wavelengthB. troughC. compressionD. crest
1 Answer
This fossil snake and this living rat both have a structure in their skull called the quadrate bone. What best explains why both species have a quadrate bone?
1 Answer
A body of mass 5kg is ejected vertically from the ground when a force of 600N acts on it for 0.1s. Calculate the velocity with which the body leaves the ground.
2 Answers
9. aDefine refraction of light. Draw the ray diagram when an object is placed at C in a concave mirror Write any two natures of that image
1 Answer
Aresultant vector is the *blank* of two or more vectors.
1 Answer
Why does the law of conversion of mass make sense?
2 Answers
write down everything that you know about heat temperature pressure and heat transfer
2 Answers
( Infer this information for both the lens and mirror based on the data collected. Report these ranges in terms of f and/or 2f. For example, When do is less than 2f. )What range of do values will result in a real image?What range of do values will result in a virtual image? What range of do values will result in a smaller image?
1 Answer
What is fission and how is it related to atomic energy
1 Answer