2 years ago

What is the reaction force to a foot pushing down on the floor?

Physics

2 answers:

ser-zykov [4K]2 years ago

6 0

C. Every action is an equal reaction when we’re talking about force

Helga [31]2 years ago

5 0

Answer:

C. The floor pushing back against the foot

Explanation:

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Importance of electric circuit

Feliz [49]

Answer:

It is important because it carries useful energy through your house that you can use for a variety of tasks.

Explanation:

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2 years ago

Concept Simulation 2.3 offers a useful review of the concepts central to this problem. An astronaut on a distant planet wants to

Alexandra [31]

Answer:

1.40 m/s^2

Explanation:

Given data

Velocity= 17.4 m/s

time= 12.4 seconds

We want to find the acceleration of the rock

We know that

acceleration = velocity/time

Substitute

acceleration= 17.4/12.4

acceleration=1.40 m/s^2

Hence the acceleration is 1.40 m/s^2

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2 years ago

A solution containing 10.0 g of an unknown liquid and 90.0 g water has a freezing point of -3.33 °C. Given Kf = 1.86 °C/m for wa

Fantom [35]

Answer:

62.06 g/mol

Explanation:

We are given that a solution containing 10 g of an unknown liquid and 90 g

Given mass of solute = $W_B$ =10 g

Given mass of solvent= $W_A$ =90 g

$k_f=1.86^{\circ}C/m$

Freezing point of solution =-3.33 $^{\circ}$ C

Freezing point of solvent = $0^{\circ}$ C

Change in freezing point =Depression in freezing point

=Freezing point of solvent - freezing point of solution=0+3.33= $3.33^{\circ}$

$\Delta T_f=\frac{W_B\times K_f\times 1000}{W_A\times M_B}$

$M_B=\frac{10\times 1.86\times 1000}{3.33\times 90}$

$M_B=62.06 g/mol$

Hence, molar mass of unknown liquid is 62.06g/mol.

6 0

2 years ago

Read 2 more answers

A fishing boat uses a sonar device which sends sound waves to the water that travel at 1000 m/s. The fishing boat detects a sign

Alexeev081 [22]

I think its D answer

sorry I dont have explanation but I think its D

6 0

2 years ago

1.An electrician is deciding what type of material to use for wires. Based on the periodic table, which of the following would b

Alinara [238K]

Without specifics, the best element to conduct electricity would be copper.

5 0

3 years ago