PHYSICS MIDDLE SCHOOL

How the gamma ray is formed?

Answers

Answer 1
Answer: Gamma rays are produced in the disintegration of radioactive atomic nuclei and in the decay of certain subatomic particles. ... When an unstable atomic nucleus decays into a more stable nucleus (see radioactivity), the “daughter” nucleus is sometimes produced in an excited state.

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HIGH SCHOOL

The author s feeling about a subject or topic, which is evidenced in word choice, is called __________. conflict resolution tone tension

Answers

Answer;

Tone

The author s feeling about a subject or topic, which is evidenced in word choice, is called tone.

Explanation;
  • Tone indicates or describes the attitude of the author towards a given subject or topic. The author's attitude is expressed through the choice of words he or she uses.
  • The tone is described by adjectives such as ironic, cynical, intense, sarcastic etc. It may be expressed by use of syntax, point of view, diction, etc.
  • The tone may change very quickly or may remain the same throughout a topic or a story.
The author s feeling about a subject or topic, which is evidenced in word choice, is called tone.
MIDDLE SCHOOL

Four animals live in the Arctic. Their characteristics are described in the following table. Animal Characteristics
A Long tail
B Small feet
C Black fur
D White skin


Which animal is least likely to be captured by its enemies?
Animal A
Animal B
Animal C
Animal D

Answers

Answer: I think the answer is d.

Hope this helps.

Explanation:

Answer:

Animal D

Explanation:

its not C because they wouldn't have any way to camouflage at night or day and they could be spotted easily, it's not B cause that will only cause disadvantages and can not make that animal the LEAST likely, it could be A, just D is the LEAST likely

COLLEGE

For many years, hitters have claimed that some baseball pitchers have the ability to actually throw a rising fastball. Assuming that a top major leaguer pitcher can throw a 95-mph pitch and impart a 1800-rpm spin to the ball, is it possible for the ball to actually rise? Assume the baseball diameter is 2.9 in. and its weight is 5.25 oz.

Answers

Answer

given,

speed = 95 mph

N = 1800 rpm

diameter = 2.9 in

weight = 5.25 oz

   ω = 188.5 rad/s

U = 95 x 1.467 ft/s

U = 139.33 ft/s

calculate the ratio

    ratio = 0.163

coefficient of lift corresponding to 0.163 from the lift and drag coefficient

   C_L = 0.04

ρ is the density of air

Lift produce

 

 

 

     L = 0.04238 lb

weight

 

     W = 0.32815 lb

MIDDLE SCHOOL

The impact time for a particular collision is 3.0 x 10^-3 seconds and the impulse in the collision is 0.30 newton seconds. What is the force of the collision? A.) 25 Newton’s
B.) 50 Newton’s
C.) 1.0 x 10^2 Newton’s

Answers

Answer

C.) 1.0 x 10^2 Newton’s


Explanation

The Newton's second law of motion states that, the rate of change of momentum is proportional to the force producing it.

∴ F = (mv- mu)/t

  Ft = mv - mu.

The quantity Ft is called the  impulse.

Ft =  0.30 Newton seconds

but t = 3.0 x 10⁻³ seconds

Ft =  0.30 Ns

F × 3.0 x 10⁻³ =  0.30 Ns

F =  0.30 / (3.0 x 10⁻³)

  = 100 N

  Answer =  C.) 1.0 x 10^2 Newton’s

Answer:

other guy got it right

Explanation:

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