Answer:
6m/s squared
Explanation:
We'll use a simple kinematic equation to solve this.
v=v⊕at
1.If a compound is made from a metal and a non-metal, its bonding will be ionic.
2.If a compound is made from two non-metals, its bonding will be covalent.
Answer:
Change volume / volume = .5 / 30 = .01666
coefficient of volume expansion = 3 * 24E-6 = 72E-6
Change in temp = .0167 / 24E-6 = 232 deg C
Final temp = 232 + 30 = 262 deg C
Change in volume / volume = 3 * coeff linear expansion * change in deg C
To solve this problem we will apply the concept related to the balance of forces. Here the electrostatic force defined by Coulomb's laws must be proportional to the weight of the electron, defined by Newton's second law, so that such balance exists, both can be described as:

Here,
Charge required
Charge of electron
d = Distance
k = Coulomb's constant
= mg
Here,
m = mass
g = Gravitational acceleration
In equilibrium the sum of Force is zero, then,





Therefore the charge required for this to happen is 
My guess would be the sphere. I'm not very good at physics but I think it would be the sphere because it can roll, while the cube can't. The cube may be able to slide, but may eventually stop. It may be easier to push a sphere up a ramp better.