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hjlf
2 years ago
15

IN nuclear in oder to slow down fast neutron the target material should contain

Physics
1 answer:
stealth61 [152]2 years ago
8 0

Answer:

it depends if it is alpha ,beta or gamma

Explanation:

if alpha use paper

if beta use some clothing or aluminium

if it is gamma use lead

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The net force is 180 and the mass is 1.793 what is the acceleration
nata0808 [166]

Answer:

100.390407

Explanation:

To find acceleration, you would use the formula a=f/m (acceleration equals force divided by mass) and then once you enter those numbers in the formula, a=180/1.793. Then you divide 180 divided by 1.793 which gets you an answer of 100.390407.

6 0
3 years ago
Imagine that you are working as a roller coaster designer. You want to build a record breaking coaster that goes 70.0 m/s at the
Rzqust [24]

Wow !  This is not simple.  At first, it looks like there's not enough information, because we don't know the mass of the cars.  But I"m pretty sure it turns out that we don't need to know it.

At the top of the first hill, the car's potential energy is

                                  PE = (mass) x (gravity) x (height) .

At the bottom, the car's kinetic energy is

                                 KE = (1/2) (mass) (speed²) .

You said that the car's speed is 70 m/s at the bottom of the hill,
and you also said that 10% of the energy will be lost on the way
down.  So now, here comes the big jump.  Put a comment under
my answer if you don't see where I got this equation:

                                   KE = 0.9  PE

        (1/2) (mass) (70 m/s)² = (0.9) (mass) (gravity) (height)     

Divide each side by (mass): 

               (0.5) (4900 m²/s²) = (0.9) (9.8 m/s²) (height)

(There goes the mass.  As long as the whole thing is 90% efficient,
the solution will be the same for any number of cars, loaded with
any number of passengers.)

Divide each side by (0.9):

               (0.5/0.9) (4900 m²/s²) = (9.8 m/s²) (height)

Divide each side by (9.8 m/s²):

               Height = (5/9)(4900 m²/s²) / (9.8 m/s²)

                          =  (5 x 4900 m²/s²) / (9 x 9.8 m/s²)

                          =  (24,500 / 88.2)  (m²/s²) / (m/s²)

                          =        277-7/9    meters
                                  (about 911 feet)
3 0
2 years ago
A............... pulley helps us by changing the direction of the applied effort​
DerKrebs [107]

Explanation:

Malai thaxai. na

ffndgufijvdyfbffnfcjoigkf

8 0
2 years ago
Read 2 more answers
If you drop a bowling ball, a tennis ball, and a feather from the top of a tall building at the same time which one will hit the
Whitepunk [10]
In the absence of air resistance the result is D .
6 0
3 years ago
Read 2 more answers
As a marble rolls across the floor, it gradually slows to a stop due to friction. Which statement best describes the change in m
Olegator [25]

Answer:

I belive it would be "C"

Explanation:

If it was any of the other answers "B" it would instantly stop. "A" it would roll forever.

3 0
3 years ago
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