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
Andrej [43]
3 years ago
5

PLEASE HELP ME,, I WOULD BE SO HAPPY

Physics
1 answer:
Scrat [10]3 years ago
4 0

Answer:

thanks for the points liar

Explanation:

You might be interested in
A bottle of water with mass 0.9 kg is left out in the sun, the radiation from the sun warms up the water bottle. If the water bo
natita [175]

Answer:

Final temperature, T2 = 314.9 Kelvin

Explanation:

Given the following data:

Mass = 0.9kg

Initial temperature, T1 = 10°C to Kelvin = 10 + 273 = 283K

Quantity of heat = 120,000 J

Specific heat capacity = 4182 j/kgK

To find the final temperature;

Heat capacity is given by the formula;

Q = mcdt

Where;

Q represents the heat capacity or quantity of heat.

m represents the mass of an object.

c represents the specific heat capacity of water.

dt represents the change in temperature.

Making dt the subject of formula, we have;

dt = \frac {Q}{mc}

Substituting into the equation, we have;

dt = \frac {120000}{0.9*4182}

dt = \frac {120000}{3763.8}

dt = 31.9K

Now, the final temperature T2 is;

But, dt = T2 - T1

T2 = dt + T1

T2 = 31.9 + 283

T2 = 314.9 Kelvin

8 0
3 years ago
If the density of an object is 5.2 g/cm3, and volume is 3.7 cm3, what is its mass
netineya [11]
Here's the equation you use: Density = mass/volume

1) 5.2g/cm^3 = m/3.7cm^3

2) m = 5.2g/cm^3 x 3.7cm^3

3) m = 19.24g

You can check the answer by plugging it in

19.24g/3.7cm^3
= 5.2g/cm^3
6 0
3 years ago
Read 2 more answers
3. According to the article, why did Europeans so quickly accept that the sun did move and change?
Sphinxa [80]

Answer:A

Explanation:because it is good

5 0
3 years ago
Read 2 more answers
An inflatable raft (unoccupied) floats down a river at an approximately constant speed of 5.6 m/s. A child on a bridge, 71 m abo
saveliy_v [14]

Answer:

21.28 m

Explanation:

height, h = 71 m

velocity of raft, v = 5.6 m/s

let the time taken by the stone to reach to raft is t.

use second equation of motion for stone

h = ut + \frac{1}{2}at^{2}

u = 0 m/s, h = 71 m, g = 9.8 m/s^2

71 = 0 + 0.5 x 9.8 x t^2

t = 3.8 s

Horizontal distance traveled by the raft in time t

d = v x t = 5.6 x 3.8 = 21.28 m

3 0
3 years ago
10.0 ppm 10.4 ppm 10.2 ppm 10.8 ppm 10.1 ppm 10.5 ppm 10.1 ppm Using the new instrument on the first day the technicians got a v
iren [92.7K]

Answer:

The datapoint 9.0 ppm is outlier at the 90% confidence level.

Explanation:

The old data has following values

mean=10.5 mm

standard deviation 0.2 mm

Now the mean of new values is calculated as following

mean=\frac{10+10.4+10.2+10.8+10.1+10.5+10.1}{7}\\mean=10.3 ppm

So the value as 9.0 ppm can be considered easily as outlier in  this regard.

3 0
3 years ago
Other questions:
  • In the seventeenth century, astronomer Johannes Kepler observed the planets revolving around our sun and analyzed data about the
    15·1 answer
  • Gina estimates that her moms truck weighs about 6,000 pounds. How can you write 6,000 using exponents?
    8·2 answers
  • Which one of the following lines best illustrates personification?
    7·2 answers
  • A 400-turn circular coil (radius = 1.0 cm) is oriented with its plane perpendicular to a uniform magnetic field which has a magn
    10·1 answer
  • A spring, when compressed 0.20 m from the equilibrium position, stores 24 J. What is the value of the spring constant
    8·1 answer
  • A developmental psychologist would be interested in studying __________. A. different philosophies about life after death B. psy
    10·2 answers
  • Suppose the foreman had released the box from rest at a height of 0.25 m above the ground. What would the crate's speed be when
    12·1 answer
  • A 50.0-g Super Ball traveling at 29.5 m/s bounces off a brick wall and rebounds at 16.0 m/s. A high-speed camera records this ev
    15·1 answer
  • Differentiate between capital g and small g​
    8·1 answer
  • 10dm/s=...m/phút=......km/h
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!