1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Pachacha [2.7K]
2 years ago
9

Congugar verbos en primera persona del singular

Physics
1 answer:
stira [4]2 years ago
3 0
This is Spanish !!!!
You might be interested in
Xavier is roller skating at 14 km/h and tosses a set of keys forward on the ground at 8 km/h. The speed of the keys relative to
JulijaS [17]

Answer:

22km/h

Explanation:

The speed of the keys relative to the ground will be given by the sum of speed of keys with respect to the ground and the speed of keys with respect to the skater

Given that the speed of keys with respect to the ground is 8 m/s while the speed of keys with respect to skater is 14 km/h then the relative speed which combines both speeds will be 8+14=22 km/hr

8 0
3 years ago
How much thermal energy is
Alex17521 [72]

Answer:

Qt = 940500 [J]

Explanation:

In order to solve this problem and understand it well, we must analyze that the ice melts or changes phase at a temperature of 0 [°c], then the water at a temperature of 100 [°C] evaporates or changes phase. That is, we have 5 different stages of water (initially in the form of ice), which are:

-) From -30 [°C] to 0 [°C] = Sensible change of temperature

-) At 0 [°C] = Latent heat of melting ice = 334 x 10³ [J/kg]

-) From 0 [°C] to 100 [°C] = Sensible change of temperature

-) At 100 [°C] = Latent heat of fusion for water = 2260 x 10³ [J/kg]

-) From 100 [°C] to 130 [°C] = Sensible change of temperature (superheating)

We can calculate the sensible heat of any process with the following expression:

Q=m*C_{p}*(T_{f}-T_{i})

where:

Q = heat or thermal energy [J]

m = mass of the body or substance = 300 [g]

Cpw = specific heat of the water = 4180 [J/kg*°C]

Cpi = specific heat of the ice = 2090 [J/kg*°C]

Tfinal = final temperature of the process [°C]

Tinicial = initial temperature of the process [°C]

And for some latent heat process, we can calculate the thermal energy using the following expression:

Q_{lat}=m*Dh_{fus/eva}

where:

Dhfus/eva = Fusion heat or latent heat [J/kg]

So, we need to calculate the fice processes.

Q_{1}=0.3*2090*(0-(-30))\\Q_{1}=18810 [J]\\Q_{2}=0.3*334*10^{3} \\Q_{2}=100200[J]\\Q_{3}=0.3*4180*(100-0)\\Q_{3}=125400[J]\\Q_{4}=0.3*2260*10^{3}\\Q_{4}=678000[J]\\Q_{5}=0.3*2010*(130-100)\\Q_{5}=18090[J]

And the final step is the sum of all the five heat processes.

Q_{t}=Q_{1}+Q_{2}+Q_{3}+Q_{4}+Q_{5}\\Q_{t}=18810+100200+125400+678000+18090\\Q_{t}=940500[J]

8 0
2 years ago
Kyle has a mass of 54 kg and is jogging at a velocity of 3 m/s. What is Kyle’s kinetic energy?
olga nikolaevna [1]

Answer:243joules

Explanation:

Mass(m)=54kg

Velocity(v)=3m/s

Kinetic energy =(m x v^2)/2

Kinetic energy =(54 x 3^2)/2

Kinetic energy =(54 x 9)/2

Kinetic energy =486/2

Kinetic energy =243joules

8 0
3 years ago
Read 2 more answers
Reasons why inductors opposes charges passing through it<br>​
saul85 [17]

Answer:

é isso daí msm

Explanation:

oq eu falei

8 0
2 years ago
Final exam answers for physical science apex?
Tju [1.3M]
First table:

1. For height, we usually use cm. If it is a must to use the conversion to solve for number 1, we can first convert the ft into m then to cm and then convert the in to cm and then add the values.

5ftx\frac{0.305m}{1ft}  = 1.525mx\frac{100cm}{1m} =152.5cm

then we convert the remaining 2in into cm and add it up:
2inx\frac{2.54cm}{1in}=5.08cm

152.5cm + 5.08cm = 157.58cm or 157.6cm

Another way to do this is to convert the ft to in and add it up to the remaining 2 in then convert to cm. The answer would be more or less the same. 

2. For weight, we will convert lbs to kg. 

105lbsx\frac{1kg}{2.2lbs} =  \frac{105kg}{2.2} = 47.7kg

3. For distance we will convert mi to km. 

1.1mix\frac{1.61km}{1mi} = 1.8km

4. The unit mph is miles per hour and we will want to convert that into kph or kilometers per hour. You will use the same method that you did above to get it. We do not need to convert hours anymore, so it will stay as is.

65 \frac{mi}{hr}x\frac{1.61km}{1mi} = 104.7\frac{km}{hr}

5. Now for the next one it is very straightforward because 1V = 1V no matter where you go. So if the given is 220V then that means that the converted value is also 220V. 

6. Now to convert Fahrenheit to Celsius, then all you have to do is use the formula given above and fill in what you know. 

The given is  70°F

°C = \frac{5}{9} (F - 32)
     = \frac{5}{9} (70 - 32)
     = \frac{5}{9} (38)
     = \frac{190}{9}
     = 21.1°C

The second table is very easy, all you need to do is convert the values to scientific notation or the other way around. All you need to do is move the decimal till you have a coefficient that is between 1 to 10 and then count how many times you moved the decimal. That will be the number or the exponent of 10. 

1. $150,000 = $1.5 x 10^5

If you moved the decimal to the left, the exponent will be positive. 

Now the other way around. To convert scientific notation to standard form, just move the decimal the number of places indicated by the exponent of 10. If it is positive, you will move to the right and if it is negative, you will move to the left. 

2. 2.59x10^6 = 2,590,000m

Now notice that the next value is less than 1. This means you will be moving the the decimal to the right to make it have a coefficient of 1 to 10. You need to move it 3 times to the right so that means the exponent will be negative. 

3. 0.005in = 5.0 x 10^(-3)in

Now do not forget to put in your units. In math or even in science the unit is EXTREMELY IMPORTANT. 

Hope this helped you and good luck!
4 0
3 years ago
Other questions:
  • A magnetic dipole with a dipole moment of magnitude 0.0243 J/T is released from rest in a uniform magnetic field of magnitude 57
    13·2 answers
  • What are the five events that can trigger a mass movement
    8·1 answer
  • A sealed container holds 0.020 moles of ideal nitrogen (n2) gas, at a pressure of 1.5 atmospheres and a temperature of 290k. the
    14·1 answer
  • Compared with a car moving at some original speed, how much work must the brakes of a car supply to stop a car that is moving tw
    11·1 answer
  • How much heat is required to increase the temperature of 1 kg of steel from 21 °C to 22 °C?
    14·1 answer
  • Topic: Chapter 19: Some wiggle room
    8·1 answer
  • Which of the following is a chemical change?
    14·2 answers
  • PLZ HURRY
    10·1 answer
  • Describe three ways that solar energy can be used
    9·1 answer
  • The following equation shows the position of a particle in time t, x=at2i + btj where t is in second and x is in meter. A=2m/s2,
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!