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
adelina 88 [10]
3 years ago
7

Find the change in internal energy, AU, if Q = 2.5 Joules and W = -30.5 Joules. *

Physics
1 answer:
Lena [83]3 years ago
4 0

Answer:

33 J

Explanation:

Using first law of thermodynamics

Q= W + U

2.5 = -30.5 + U

U = 2.5 + 30.5

U = 33 J

You might be interested in
The risk of earthquakes is high along the Pacific coast of the United States because a. There have been no earthquakes there lat
Ludmilka [50]
(D) That's where the Pacific and North American plates meet.
5 0
3 years ago
How long does it take anya to cover the distance of 5.00 miles ?
sammy [17]
Here is the full information about the question. <span>Ilya and Anya each can run at a speed of 8.50mph and walk at a speed of 3.50 mph . They set off together on a route of length 5.00 miles . Anya walks half of the distance and runs the other half, while Ilya walks half of the time and runs the other half.
the calculation would be:
</span><span>
t = d / s </span>
<span>t = 2.5 (half of the total distance) / 8.5 (speed of running) </span>
<span>This is .294 hours which is about 1058s... </span>

<span>for the walking part... </span>

<span>t = d / s </span>
<span>t = 2.5 / 3.5 </span>
<span>t = 5/7hours = 2571 s. </span>
5 0
3 years ago
A 180-ohm resistor has 0.10 A of current in it. what is the potential difference across the resistor
Firlakuza [10]
We know V=IR (Ohm's law).

We are given R=180Ω and I=0.1A, then V=(0.1AΩ)(180Ω). Therefore

V=18V
5 0
3 years ago
A rock is lifted by a machine to a height of 10m. If it has a mass of 22 kilograms
zmey [24]

Answer:

2156J

Explanation:

Given parameters:

Height of lift  = 10m

Mass  = 22kg

Unknown:

Work done by the machine  = ?

Solution:

Work done is the force applied to move a body through a certain distance.

So;

        Work done  = Force x distance

Here;

       Work done  = mass x acceleration due to gravity x height

      Work done  = 22 x 9.8 x 10  = 2156J

5 0
3 years ago
If the force on a hammer is 24 N and its mass is 1.6 kg, then the
Gnesinka [82]

Answer:

15 m/s²

Explanation:

F = ma

make "a" the subject

a = F/m

6 0
3 years ago
Other questions:
  • Large-scale environmental catastrophes _______.
    13·1 answer
  • Measuring the Orbital Speeds of Planets
    6·1 answer
  • What's a broad flat volcano created by quiet eruptions
    13·1 answer
  • ________ fuel is a renewable alternative to petroleum fuels that is made through either biologically or chemically driven produc
    14·2 answers
  • Scientific laws explain_____.
    5·2 answers
  • What's the name for how you see the world through your perception<br> in cognitive theory.
    10·2 answers
  • 4. Un móvil viaja en línea recta con una velocidad media de 1200 cm/s durante 9 s, y luego con velocidad media de 480 cm/s duran
    7·1 answer
  • Which of the following would cause the force of kinetic friction to increase?
    5·1 answer
  • Hdhehehbebehebehebebbebehe
    10·2 answers
  • Energy is the capacity to do work or
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!