<h3>
Answer:</h3>
Velocity is 1 m/s
<h3>
Explanation:</h3>
<u>We are given;</u>
- Mass of the kiddy train is 1000 kg
- Radius of the curve is 5.0 m
- Centripetal force is 2000 N
We are required to determine the maximum speed of the train.
- Centripetal force refers to the force experienced by an object in a circular motion towards the center of a circular path.
- It is calculated by the formula;
- , where m is the mass, v is the velocity and r is the radius of the circular path.
- Therefore, using the formula we can find the maximum speed.
Therefore, the maximum speed of the train is 1 m/s
Answer:
<h3>2.89 × 10²³ atoms of zinc</h3>
Explanation:
The number of atoms of zinc can be found by using the formula
<h3>N = n × L</h3>
where n is the number of moles
N is the number of entities
L is the Avogadro's constant which is
6.02 × 10²³ entities
From the question we have
N = 0.48 × 6.02 × 10²³
We have the final answer as
<h3>2.89 × 10²³ atoms of zinc</h3>
Hope this helps you
Answer:
The answer to the question is
The resultant ground reaction force exerted by the floor on the volleyball player's shoes = 2088.06 N
Explanation:
To solve the queston we list out the variables thus
Mass of volley ball player = 80 kg
Normal force exerted on her shoes by the floor N =2000 N
friction force, f, exerted on her shoes backwards = 600 N
The resultant ground reactive force, R, is given by
R² = N² + f² = 2000² + 600² = 4000000 + 360000 = 4360000
Therefore R = √(4360000) = 2088.06 N
The direction of the force = atan (2000/600) = 73.3 ° clocwise or 106.699 ° counter clockwise
Alcohols have higher boiling points than do<span> ethers and alkanes of similar molar masses because the OH group allows </span>alcohol<span> molecules to engage in hydrogen bonding.
Hope this helps</span>
A conductor that is more powerful and can last longer