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vlabodo [156]
3 years ago
11

Football Player Position Mass (kg) Velocity (m/s) Half back 60 8 Tight end 90 6 Full back 110 5 Lineman 120 3 Based on the data

shown in the table, what is most likely being tested? A) Does the speed of a player affect his mass? B) How are mass and speed related in football? C) Which positions have the fastest speed and biggest mass? Eliminate D) How does the speed of a player change as his mass is increased?
Chemistry
2 answers:
katrin [286]3 years ago
5 0
Whether the speed of the player is affected by his weight is being tested.
A) The speed is affected by the player's mass.
B) As the mass increases, the velocity of the player decreases.
C) The fastest speed is the Half Back and the biggest mass if Lineman.
D) As the mass increases, the velocity of the player decreases.
Andreas93 [3]3 years ago
4 0

Answer:

D) How does the speed of a player change as his mass is increased

Explanation:

Since the data in the table shows us a clear increase in mass first, and a decrease in velocity corresponding to that increase in mass, the study most likely is trying to research the effects of an increase in the mass of the player and how it would affect its velocity. AS you can see in the table, the most heavy players are also the slowest and the quickest players are also the thinest, so there is a direct inverse correlationship.

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Natasha_Volkova [10]
I’m pretty sure it’s D.increases the activation energy for a reaction.
4 0
3 years ago
If there is a graduated cylinder containing 20mL of water and a small rock is gently placed inside it, and the water level insid
LekaFEV [45]

Answer:

5

Explanation:

just subtract 20-25 and 5 is left over which is how much the water when up with the rock.

8 0
2 years ago
Read 2 more answers
A particular voltaic cell operates with the reaction: Zn(s)+Cl2(g)--->Zn^2+(aq)+2Cl^-(aq) giving a cell potential of .853 V.
nadya68 [22]

Answer:

The amount of energy liberated will be 49.38 J.

Explanation:

The amount of energy liberated (gibbs free energy) can be calculated using the following equation:

ΔG° = -nFε

n: amount of moles of electrons transfered

F: Faraday's constant

ε: cell potential

20.0 g of Zn is equal to 0.30 mol.

Two electrons are transfered during the reaction.

Therefore, n = 2x0.30 ∴ n = 0.60

ΔG° = - 0.60 x 96.485 x 0.853

ΔG° = 49.38 J

3 0
3 years ago
What is an acid and also what is a base​
expeople1 [14]

Answer:

An acid is a substance that donates protons (in the Brønsted-Lowry definition) or accepts a pair of valence electrons to form a bond (in the Lewis definition). A base is a substance that can accept protons or donate a pair of valence electrons to form a bond.

Hope it helps!!!

3 0
2 years ago
What is the density of CHCL3 vapor at 1.00atm and 298K?
Advocard [28]

Answer:

4.8 g/mL is the density of chloroform vapor at 1.00 atm and 298 K.

Explanation:

By ideal gas equation:

PV=nRT

Number of moles (n)

can be written as: n=\frac{m}{M}

where, m = given mass

M = molar mass

PV=\frac{m}{M}RT\\\\PM=\frac{m}{V}RT

where,

\frac{m}{V}=d which is known as density of the gas

The relation becomes:

PM=dRT    .....(1)

We are given:

M = molar mass of chloroform= 119.5 g/mol

R = Gas constant = 0.0821\text{ L atm }mol^{-1}K^{-1}

T = temperature of the gas = 298K

P = pressure of the gas = 1.00 atm

Putting values in equation 1, we get:

1.00atm\times 119.5g/mol=d\times 0.0821\text{ L atm }mol^{-1}K^{-1}\times 298K\\\\d=4.88g/L

4.8 g/mL is the density of chloroform vapor at 1.00 atm and 298 K.

7 0
2 years ago
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