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scoundrel [369]

2 years ago

10

compared to an object that does not roll, but instead slides without friction, should a rolling object be released from the same

,a greater, or a lesser height in order just barely to complete the loop the loop?

1 answer:

Zinaida [17]2 years ago

6 0

Answer:

from a lesser hight

Explanation:

because you need less force

hope its right if it is mark brainlyest ;)

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There are Z protons in the nucleus of an atom, where Z is the atomic number of the element. An α particle carries a charge of +2

qaws [65]

Answer:

$r = 2.84 \times 10^{-14} m$

Explanation:

As per energy conservation we know that the electrostatic potential energy of the charge system is equal to the initial kinetic energy of the alpha particle

So here we can write it as

$\frac{1}{2}mv^2 = \frac{k(2e)(ze)}{r}$

now we know that

$m = 1.67 \times 10^{-27} kg$

$e = 1.6 \times 10^{-19} C$

z = 79

here kinetic energy of the incident alpha particle is given as

$KE = 6.4 \times 10^{-13} J$

now we have

$6.4 \times 10^{-13} = \frac{(9\times 10^9)(1.6 \times 10^{-19})^2(79)}{r}$

now we have

$r = 2.84 \times 10^{-14} m$

7 0

3 years ago

PLZ HELP photosynthesis transforms (blank)into chemical (blank)suger . cellular respration releasses the (blank) from food by (b

Alex17521 [72]

Answer is:

Photosynthesis transforms light energy into chemical energy. Cellular respration releasses the carbon dioxide from food into the air.

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5 0

2 years ago

padilas [110]

The answer would be C. Gamma Rays and High Frequency EM waves travel at the speed of light and are transverse waves.

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3 years ago

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Which of these is not a type of force?

coldgirl [10]

Inertia
the awnswer is inertia b

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A1.200 kg car is sliding down an icy

Triss [41]

Answer:

1585.67N

Explanation:

their are many student who can not get answer on time and step by step answer.so there are

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