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
Natalka [10]
3 years ago
13

A cube of iron (Cp = 0.450 J/g•°C) with a mass of 55.8 g is heated from 25.0°C to 49.0°C. How much heat is required for this pro

cess? Round your answer to three significant figures.
Physics
2 answers:
Rus_ich [418]3 years ago
8 0
Q = mcΔT 
<span>q = 55.8g x 0.450J/gC x 23.5C </span>
<span>q = 590. J ................ to three significant digits

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

</span>
swat323 years ago
8 0

the answer on edge is 603 J

You might be interested in
Ayudaaaaa por favorrrrrrrr!
abruzzese [7]
Same for #1 I have to say the same thing
6 0
3 years ago
A circular coil 14.0 cm in diameter and containing nine loops lies flat on the ground. The Earth's magnetic field at this locati
sp2606 [1]

Answer:

a)T = 2.9*10^{-5} N-m

b) north edge will rise up

Explanation:

torque on the coil is given as

T = NIABsin\theta

where N is number of loop =  9 loops

i is current = 7.80 A

-B -earth magnetic field = 5.00*10^{-5} T

A- area of circular coil

A = \frac{\pi d^{2}}{4}

A =\frac{\pi .14^{2}}{4}

A =0.015 m2

PUTITNG ALL VALUE TO GET TORQUE

T = 9*7.8*0.015*5*10^{-5} sin{90-56}

T = 2.9*10^{-5} N-m

b) north edge will rise up

3 0
3 years ago
Read 2 more answers
The kinetic energy of a roller coaster is 100 joules. The potential energy of the same coaster is 100 joules. What is the mechan
igor_vitrenko [27]

Answer/Explanation:

The mechanical energy is 200 joules. Mechanical energy is determined by adding the total kinetic energy by the total potential energy.

M = kp

100 + 100 = 200

4 0
2 years ago
lightning strikes in the distance and six seconds later Thunder is heard how far away was the lightning strike
marshall27 [118]
The speed of sound really depends on the temperature and moisture in the air,
and the sound of the thunder doesn't necessarily travel straight from the lightning
to where you are.  So we can't say exactly. 

But if we use the nominal speed of 340 m/s, then 6 seconds means 2,040 meters,
or about 6,700 feet, or about 1.27 miles.
8 0
3 years ago
Imagine a box sitting on a shelf. What forces are acting on the box?
mel-nik [20]

In case of an object sitting at rest on another base, there are two equal and opposite forces – Normal force and the gravity.

Answer: Option A

<u>Explanation: </u>

When an object is placed at rest position on another object, there is a force exerted by the surfaces of the two contact objects. This force is denoted as Normal Force.

When an object such as a box is placed on a shelf, its surface exerts a contact force on the base of the shelf- The Normal force directed upward. Meanwhile, the gravity stays at its action and tries to pull the box towards itself.  

Both of these forces however are equal and opposite and therefore, there is zero net force on the box. That's why it remains at rest, holding on Newton's third law.

8 0
3 years ago
Other questions:
  • A uniformly charged conducting sphere of 1.1 m diameter has a surface charge density of 6.2 µC/m2. (a) Find the net charge on th
    14·1 answer
  • A magnetic field is applied to a freely floating uniform iron sphere with radius R = 2.00 mm. The sphere initially had no net ma
    6·1 answer
  • Which planets are closets to the sun?
    8·2 answers
  • Drill bits are attached to power drills to make holes. Drill bits are made of {BLANK 1} because they’re hard and resistant to co
    9·1 answer
  • The source of Earth's magnetic field is
    5·2 answers
  • Bart stole a watermelon and ran 5,000 feet from the cops and they chase lasted 0.1 hours how fast was Bart running in miles per
    9·1 answer
  • More Density Graphi Questions
    14·1 answer
  • What happens to the gravitational potential energy between two particles if the distance between them is halved? (a) It does not
    13·1 answer
  • A train travels 100 km east and then 75 km west. What is the magnitude of<br> its displacement?
    5·1 answer
  • Which best illustrates the relationships between a producer and a consumer
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!