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
Licemer1 [7]
3 years ago
11

How much heat is required to raise the temperature of 2.0 kg of concrete from 10C to 30C? (The specific heat of concrete is 880

j/kg-C.)
A. 22 J
B. 88 J
C. 8800 J
D. 35200 J
Physics
1 answer:
Phantasy [73]3 years ago
8 0

Answer:B

Explanation:

You might be interested in
Samantha and Emily are pushing a box of textbooks in the same direction across their classroom. Samantha is applying a force of
likoan [24]

Answer:

20N

Explanation:

Force applied by Samantha = 10N

Force applied by Emily  = 10N

Since both Samantha pushes the box of textbook in the same direction; their forces are additive.

   Net force applied on box  = Force applied by Samantha + Emily

Force is a pull or push on a body

  Net force  = 10N + 10N  = 20N

4 0
4 years ago
A gamma ray with an energy of 3.40 × 10-14 joules strikes a photographic plate. We know that Planck's constant is 6.63 × 10-34 j
suter [353]
The correct answer is: "A. 5.13 x 10^19 hertz"
4 0
4 years ago
Read 2 more answers
What will occur when the trough of wave A overlaps the trough of wave B?
densk [106]

Constructive interference will occur, which means the waves will combine.

In destructive inference, the waves cancel each other out.

Hope this helps :)

3 0
3 years ago
Read 2 more answers
a car moving with 72 km/hr towards east and another car with 90km/hr towards west find relative of A w.r to B​
hodyreva [135]

Answer:

please tell me what does w.r mean ? then I will try to give answer

7 0
3 years ago
If some electrons are transferred from object A to object B,
Igoryamba

Answer: A. Object A will have a positive charge.

Explanation: If the number of protons and electrons are the same, their net charges cancel each other out, and you have a neutral charge. If electrons are transferred to another object, the amount of positive charge will outweigh the amount of negative charge. As a result, you are left with an overall positive charge in object A. Meanwhile, object B is now negative.

6 0
3 years ago
Other questions:
  • Air in a thundercloud expands as it rises. If its initial temperature is 300 K and no energy is lost by thermal con- duction on
    7·1 answer
  • If a 530-kg swimmer pushes off a pool wall with a force of 421 N, what is her acceleration?
    12·1 answer
  • When a potassium atom forms an ion, it loses one electron. What is the electrical charge of the potassium ion?
    15·2 answers
  • What is the restoring force of a spring with a spring constant of 4a and a stretched displacement of 3b?
    9·2 answers
  • PLZ ANSWER WILL MARK BRAINLEST IF 2 PEOPLE ANSWER
    7·2 answers
  • The layers of the atmosphere are classified according to changes in
    7·1 answer
  • A small electric motor produces a force of 5 N that moves a remote-control car 5 m every second. How much power does the motor p
    7·2 answers
  • Help mee! Physics i think!
    11·1 answer
  • A tank containing water up to a depth of 650 mm is stationary. Find the force exerted by fluid of specific gravity 0.55 on the s
    11·1 answer
  • NEED HELP ASAP!!! THE PERSON WHO ANSWERS THIS GETS A 50-100 BRAINLEST!!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!