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
Lemur [1.5K]
2 years ago
12

A kettle full of water is brought to a boil in a room with temperature 20°c. after 15 minutes the temperature of the water has

decreased from 100° to 75°c. find the temperature after another 5 min

Physics
1 answer:
kogti [31]2 years ago
4 0

Answer: The temperature after another 5 minutes is 68.5°c

Explanation: Please see the attachments below

You might be interested in
Mary Jo went on riding her horse through the trails. Her pace was 8 km/hr. She left at 8:30 am and got back to the barn at 9:00
goldfiish [28.3K]

Answer:

4km

Explanation:

Distance=speed x time

Knowing this we know the time and speed

so it is 8 x .5= D

And 8 x .5 =4

If you have any questions let me know

4 0
3 years ago
B)
Vlad1618 [11]

Answer:

a) 16m/s b) 192m

Explanation:

v1=32m/s a=-2m/s^2 t=8s v2=? d=??

a) I will use this equation v2= v1 + a*t

v2= 32m/s + -2m/s^2 * 8s

v2= 32m/s + -16m/s

v2= 16m/s

b) v2^2=v1^2 + 2ad

rearranging

v2^2-v1^2=2ad

v2^2-v1^2/2= a d

v2^2-v1^2/2a=d

16m/s^2 - 32m/s^2/ 2 x-2m/s^2 =d

d=192m

5 0
2 years ago
Write the importance of international bureau of weights and measurement.​
Taya2010 [7]

Answer:

The importance of international bureau of weights and measures are;

1. to bring unification of measurement system.

2. to establish and preserve fundamental international prototypes.

3. to verify national standards, etc.

8 0
3 years ago
When the distance between two masses is doubled, the gravitational attraction between
mrs_skeptik [129]

The new gravitational attraction will be 1/4 as much

Explanation:

The magnitude of the gravitational force between two objects is given by

F=G\frac{m_1 m_2}{r^2}

where

G=6.67\cdot 10^{-11} m^3 kg^{-1}s^{-2} is the gravitational constant

m1, m2 are the masses of the two objects

r is the separation between them

In this problem, the original force between the two objects is F, when they are separated by a distance r.

Later, the distance between the two objects is doubled, so the new distance is

r'=2r

Therefore, the new force will be

F'=G\frac{m_1 m_2}{(2r)^2}=\frac{1}{4}(\frac{Gm_1 m_2}{r^2})=\frac{F}{4}

Therefore, the new force will be one-fourth as much.

Learn more about gravitational force:

brainly.com/question/1724648

brainly.com/question/12785992

#LearnwithBrainly

5 0
3 years ago
The particle in the atom with a negative charge is the ______<br> Answer here
NISA [10]

Answer:

Explanation:

The electron has a negative charge. Proton is positive and neutron is neutral.

4 0
3 years ago
Read 2 more answers
Other questions:
  • How many significant figures are in 25.030 , 0.006 070 , 1.004 and 1.3005 20 and why ?
    12·2 answers
  • Hot air balloons float in the air because of the difference in density between cold and hot air. In this problem, you will estim
    6·1 answer
  • When a carpet is beaten with a stick dust particles off<br> ...why
    5·1 answer
  • Atomos neutros de um certo elemento representativo M apresentam dois elétrons em sua camada de valência. As fórmulas corretas pa
    11·1 answer
  • What movement allows us to move our side to side?
    7·1 answer
  • Which frequency would be the third harmonic in a series for an open-pipe resonator if the fundamental is 440 Hz
    5·1 answer
  • Indicate all the forces acting on a block of wood​
    9·1 answer
  • What is an Alternative fuel?
    9·2 answers
  • If humans can't see air but can see water,
    11·2 answers
  • What is the equilibrium constant for the following reaction at 25 °c?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!