3 years ago

PLEASE HELP! I NEED ANSWER SOON

Physics

2 answers:

Serga [27]3 years ago

4 0

Answer:

5 and 3. I guess I am not very sure

Nikolay [14]3 years ago

4 0

The answers are 1,3,5

You might be interested in

A 200 kg roller coaster car is located at the top of a hill where the height is 30 m. What is the velocity when it reaches the b

Makovka662 [10]

Answer: 24.2

Explanation:

8 0

3 years ago

Need help on this thank you

Semmy [17]

Answer:

TRUE - In any collision between two objects, the colliding objects exert equal and opposite force upon each other. This is simply Newton's law of action-reaction.

7 0

3 years ago

Calculate the heat, in kilocalories, that is absorbed if 183 g of ice at 0.0 ∘C is placed in an ice bag, melts, and warms to bod

boyakko [2]

Answer:

The total amount of heat needed will be $Q_T=21.411kcal$ .

Explanation:

We will divide the calculation in two: First, the heat needed to melt the ice, and then the heat needed to warm the resulting liquid from 0°C to 37°C.

$m=183g$

$l_f=80\frac{cal}{g} =334\frac{J}{g}$

$l_w=1\frac{cal}{g} =4.184\frac{J}{g}$

i) The fusion heat will be:

$Q_f=l_fm=14640cal=14.640kcal$

ii) The heat needed to warm the water from $T_i=0^{\circ}C$ to $T_i=37^{\circ}C$ will be:

$Q_w=l_wm(T_f-T_i)=6771cal=6.771kcal$

So, the total amount needed will be the sum of these two results:

$Q_T=Q_f+Q_w=14.640kcal+6.771kcal=21.411kcal$ .

8 0

3 years ago

Elements are organized on the periodic table based on their properties. Which statement correctly predicts and explains the chem

ExtremeBDS [4]

Answer:Rubidium or answer 1

Explanation:took quiz

7 0

3 years ago

A) State what is meant by absolute zero temperature.

Lynna [10]

Answer:

Absolute zero temperature is the lowest limit of the thermodynamic temperature scale, a state at which the enthalpy and entropy of a cooled ideal gas reach their minimum value, taken as zero kelvins.

3 0

3 years ago