PHYSICS HIGH SCHOOL

_____ is the combination of two nuclei to produce a nucleus of heavier mass.a. fission
b. nuclear radiation
c. radioactivity
d. fusion

Answers

Answer 1
Answer: The answer to the given above is letter D. fusion. This is an essential process in the radioactivity where two nuclei combine to produce a heavier one. The combination release a nuclear energy. Its opposite process is a nuclear fission.
Answer 2
Answer:

Answer: your answer is Fusion

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You have decided to study the effect of loud noise on plant growth. You put one plant in a quiet room and the other plant in your school's band hall. Providing each plant with the same amount of water is an example of aA. data.
B. control.
C. variable.
D. observation.

Answers

b. control

also known as constant 

Imagine that a tank is filled with water. The height of liquid column is 7 meters and the area is 1.5 square meters (m2). What's the force of gravity acting on the column of water?

Answers

-- The volume of water is    (1.5 m² x 7 m)  =  10.5 m³

   10.5 m³  =  10,500 liters

   Water mass  =  (10,500 liters) x (1 kg/liter) = 10,500 kg.

-- "Force of gravity on the water"

    =  Weight of the water = (10,500 kg) x (9.8 m/s²) = 102,900 newtons

-- Pressure on the bottom of the tank =

                 (102,900 newtons) / (1.5 m²)

             =      68,600 nt/m²  =  68,600 pascal .

your answer is 102,900 N

i just took the test

A ball is thrown horizontally from the top ofa building 140 m high. The ball strikes the
ground 54 m horizontally from the point of
release.
What is the speed of the ball just before it
strikes the ground?
Answer in units of m/s.

Answers

Answer:

v = d / t = 54 / 5.34 = 10.11 m/s (rounded to two decimal places)

Explanation:

The average distance from the sun to Pluto is approximately 6.10 time 10^9 km. How long does it take light from the sun (384,000 km/s) to reach Pluto?

Answers


From the information as given in the question, the transit time
for light from the sun would be

       (6.1 x 10⁹ km) / (3.84 x 10³ km/sec) = 15,885 seconds (rounded).
                                                                       (4.4 hours) .
==============================

-- A better figure for Pluto's average distance from the sun is  5.874 x 10⁹ km.

-- " 384,000 km/sec " is about 28% too high for the speed of light.
    A much better figure is  300,000 km/sec.

Using these numbers, the transit time is

           (5.874 x 10⁹ km) / (3 x 10⁵ km/sec)  =  19,580 seconds
                                                                             (5.4 hours)

Two large crates, with masses 640kg and 490kg , are connected by a stiff, massless spring (K=8.1kN/m) and propelled along an essentially frictionless, level factory floor by a force applied horizontally to the more massive crate. If the spring compresses 5.1 from its equilibrium length, what is the applied force? Express your answer using two significant figures. The answer is suppose to be 950N

Answers

Answer:

950.7 N

Explanation:

m1 = 640kg

m2 = 490kg

k = 8.1 kN/m

the spring is compressed by 5.1cm

5.1/100 = 0.051m

F = kx

F = 8100 * 0.051

F = 413.1 N

F is the force of the small crate.

F(small) = ma

431.1 = 490a

a = 431.1/490

a = 0.84 m/s^2

The acceleration for the smaller crate is the same for the large create.

F(large) = ma

= 640 * 0.84

= 537.6N

Total force = F(small) + F(large)

= 413.1 + 537.6

= 950.7N

organisims that have a physical trait that makes it easier for them o access food supply are unlikely to pass on that trait to their offsprings

Answers

The answer then is false, if it has a trait that will help it survive in its environment then it will pass on the trait to its offspring. 

Answer: FALSE

Explanation:

EGDE 2021
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