who notifies each student as to the Pell Grant amount he or she will receive and the disbursement date.

Is it true that correlation procedures respond to the hypothesis of association?

BlackZzzverrR [31]

Yes you are rightIs it true that correlation procedures respond to the hypothesis of association?

7 0

4 years ago

¿Necesitas un punto porque puedo darte algunos si lo necesitas?

erastova [34]

Answer

muchas gracias

Explanation:

5 0

3 years ago

when a chlorine atom forms an ion its radius increases, but when a sodium atom forms an ion its radius decreases. explain this a

BabaBlast [244]

This apparent contradiction between the chlorine ion and the sodium ion is; due to electrostatic attraction between the nucleus and the electrons.

As we know, there's a periodic trend for atomic radii in the periodic table; the trend is as follows;

Atomic radius increases down a group and reduces across the period.

Elements get larger down the group and this explains the trend down a group.

However, atomic radius decreases across a period because the more Valence electrons there are in an element, the more the electrostatic attraction between the positively charged nucleus and the negatively charged electrons.

Consequently, when Chlorine forms an ion by gaining an electron, the electrostatic attraction between its nucleus and electrons increases and the the atomic radius decreases.

On the other hand, when sodium forms an ion by losing an electron, the electrostatic attraction between its nucleus and electrons decreases and the the atomic radius increases.

Read more:

brainly.com/question/2848851

5 0

3 years ago

Which example shows an advantages of owning a car over leasing one?

ollegr [7]

Here are 5 advantages of buying a car: Paying less over the long term. Monthly lease payments are generally less expensive than monthly car loan payments. However, with each loan payment, you can build up equity for the future when you decide to sell it or trade it in.

4 0

3 years ago

a 15.0 kg block is attached to a very light horizontal spring of force constant 575 n/m and is resting on a smooth horizontal ta

Luden [163]

The instantaneous velocity of the 15 kg. mass just after collision can be found by the principle of linear momentum.

a) The speed of the 15 kg. just after collision is 2 m/s.

b) The type of collision is inelastic collision

c) The compression of the spring is approximately 0.323 m.

Reasons:

The given parameters are;

Mass of the block attached to the spring, m₁ = 15.0 kg

Force constant of the spring, K = 575 N/m

Mass of the stone that strikes the block, m₂ = 3.00 kg

Speed of the stone, v₂ = 8.00 m/s

Speed with which the stone rebounds, v₃ = 2.00 m/s

a) The total initial momentum = 3 kg. × 8 m/s = 24 kg·m/s

The final momentum, just after collision = 3 × (-2) kg·m/s + 15 kg ×v₁

By conservation of momentum, we have;

24 kg·m/s = 3 × (-2) kg·m/s + 15 kg ×v₁

$v_1 = \dfrac{24 \, kg \cdot m/s + 6 \, kg \cdot m/s}{15 \, kg} = 2 \, m/s$

The speed of the 15 kg. just after collision, v₁ = 2 m/s.

b) A collision is elastic when the kinetic energy of the collision is conserved

The initial kinetic energy, K.E.₁ = 0.5 × 3 kg. ×(8 m/s)² = 96 J

The sum of the final kinetic energy are;

0.5 × 3 kg. × (2 m/s)² + 0.5 × 15 kg × (2 m/s)² = 36 J

The initial kinetic energy ≠ The final kinetic energy

Therefore, the collision is not elastic

(c) The kinetic energy given by the block = The elastic potential energy gained by the spring

Kinetic energy of the block, K.E. = 0.5 × 15 kg × (2 m/s)² = 30 J

Elastic energy gained by the block = 0.5 × K × x² = 0.5 × 575 N/m × x²

Therefore;

0.5 × 575 N/m × x² = 30 J

$x^2 = \dfrac{30 \, J}{0.5 \times 575 \, N/m} = \dfrac{12}{115} \, m^2$

$x = 2 \cdot \sqrt{\dfrac{3}{115} } \approx 0.323$

The compression of the spring, x ≈ 0.323 m.

Learn more here:

brainly.com/question/7694106

Questions;

(a) The speed of the 15 kg mass immediately after the collision.

(b) Determine the type of collision; Elastic or inelastic collision.

(c) The distance to which the spring is compressed by the block.

3 0

3 years ago