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
lozanna [386]
3 years ago
11

I need help fast please help

Physics
1 answer:
Irina18 [472]3 years ago
5 0
A and C Im pretty sure :)
You might be interested in
Pleaseeee Please help, I will love you forever and ever
matrenka [14]

Answer:

The answer to your question is

Explanation:

Data

mass = 0.5kg

T1 = 35

T2 = ?

Q = - 6.3 x 10⁴ J  = - 63000 J

Cp = 4184 J / kg°C

Formula

                        Q = mCp(T2 - T1)

                         T2 = T1 + Q/mCp    

Substitution

                       T2 = 35 - 63000/(0.5 x 4184)

                        T2 = 35 - 63000/2092

                        T2 = 35 - 30.1

                         T2 = 4.9 °C

6 0
3 years ago
Which trait would be inheritable?
dolphi86 [110]
<span>B) eye color is an inheritable trait</span>
8 0
3 years ago
Read 2 more answers
A scientist kept 1,000 grams of a radioactive material in a container. After 66 days, he observed that 125 grams of the radioact
bixtya [17]
The sample appears to have gone through 3 half-lives
1st half life: 1000 to 500 g
2nd half life: 500 to 250 g
3rd half life: 250 to 125 g
The duration of a half-life, therefore, can be inferred to be 66 ÷ (3) = 22 days. 

After a 4th half life, there will be 125÷2= 62.5 g. 
At this point, an additional 22 days will have passed, for a total of 88 days.
Answer is C. 

8 0
3 years ago
Calculate the average speed (in km/hr) of Charlie whonruns to the store 4 km away in 30 minutes
max2010maxim [7]
I don't know the answer to that
4 0
3 years ago
Question: How is the energy in the food we eat an example of chemical potential energy?
Elanso [62]

Answer: D

Explanation: The chemical bonds in the food store energy that is released when we eat it.

3 0
3 years ago
Other questions:
  • An observer at the top of a 462-ft cliff measures the angle of depression from the top of the cliff to a point on the ground to
    6·1 answer
  • The resistance force for this ideal pulley system is 1000 n what is the fe
    14·1 answer
  • How does a black hole form
    9·2 answers
  • What sound signal alerts others that a boat is backing up?
    11·1 answer
  • Question 4 (point)
    5·1 answer
  • Two identical cars, each traveling at the same velocity, and having the same mass come to a stop
    12·1 answer
  • Who is the most genius scientist in the world​
    7·1 answer
  • Thermal energy and temperature both relate to the amount of ______ energy of moving particles of matter.​
    9·1 answer
  • Which property of the sound wave changes when the volume is increased on a radio?.
    15·1 answer
  • HELP PLEASE!!!!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!