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3 years ago

Why are strong forces able to hold atomic nuclei together?

1 answer:

4 0

The nucleons(protons and neutrons) are held together by means of this strong force. If this strong never existed, all the nucleus will blow themselves due to strong repulsive force between protons(neutron has no charge).
Thats it!
If I explain beyond, it will surely bounce off your head. Anyways, if you wanna know more bout it, ping me. (:

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The centers of two 15.0 kg spheres are separated by 3.00 m. The magnitude of the gravitational force between the two spheres is

kompoz [17]

we have to use newtons law of gravitation which is
F=GMm/r^2
G=6.67 x 10^<span>-11N kg^2/m^2
</span>M=<span>(15kg)
</span>m=15 kg
r=(3.0m)^2<span>
</span>putting values we have
<span>=(6.67 x 10^-11N kg^2/m^2)(15kg)(15kg)/(3.0m)^2 </span>
=1.67 x 10^-9N

7 0

3 years ago

Which of the following people would most likely be satisfied with conventionalism?

ANTONII [103]

The following people would most likely be satisfied with conventionalism is morality cannot be compared across cultural borders.

<h3>What is conventionalism?</h3>

Conventionalism is the philosophical demeanor that central standards of a specific kind are grounded on (express or understood) arrangements in the public eye, as opposed to on outer reality. Implicit principles assume a vital part in the way of thinking's design.

Across the borders of the different states, different cultures exist. These cultures can't give an idea of moralism in the people.

Thus, conventionalism is something in which morality cannot be compared across cultural borders.

Learn more about conventionalism.

brainly.com/question/24316302

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3 0

2 years ago

Which statement is false?

dusya [7]

C) doubling the mass doubles the acceleration

5 0

3 years ago

A 0.500 kg ball is dropped from rest at a point 1.20 m above the floor. The ball rebounds straight upward to a height of 0.700 m

KatRina [158]

To solve this problem we will apply the concepts related to energy conservation. With this we will find the speed before the impact. Through the kinematic equations of linear motion we will find the velocity after the impact.

Since the momentum is given as the product between mass and velocity difference, we will proceed with the velocities found to calculate it.

Part A) Conservation of the energy

$mgh = \frac{1}{2} mv^2$

$v_1 = \sqrt{2gh}$

$v_1 = \sqrt{2(9.8)(1.20)}$

$v_1 = 4.84m/s$

$\therefore v_1 = -4.84/s \rightarrow \text{Negative direction downward}$

Part B) Kinematic equation of linear motion,

$v_2^2 = u_0^2 +2a\Delta y$

Here

v= 0 Because at 1.5m reaches highest point, so v=0

$0 = u_2^2 +2(-9.8)(0.7)$

$u_2 = 3.7m/s$

Therefore the velocity after the collision with the floor is 3.7m/s

PART C) Total change of impulse is given as,

$J = P_2 -P_1$

$J = mU_2-mV_1$

$J = m(U_2-V_1)$

$J = (0.5)(3.7-(-4.84))$

$J = 4.27kg \cdot m/s \rightarrow \text{Upward because is positive}$

6 0

4 years ago

True or false? Scientific laws can be expressed through a law that relates several variables.

Marina86 [1]

Answer:

True

Explanation:

Scientific laws are often written as expressions that contains variables and are laws that are binding themselves.

In science, laws are natural phenomenon that draws from careful observations that holds through following a series of detailed study. Within the range of assumed parameters, a law will always hold true.

Most laws in science are denoted using mathematical variables which helps to interpret them.

The variables shows the relationship between the different parts of the law.

For example, Newton's law of universal gravitation is expressed mathematically as shown below;

F = $\frac{G m_{1} m_{2} }{r^{2} }$

where G, m and r are all variables.

G is the universal gravitation constant

m is mass

r is the distance between them.

F is the gravitational force.

Most scientific laws are often expressed in this format.

5 0

3 years ago