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
Ilya [14]
3 years ago
5

The specific heat of a certain type of metal is 0.128 J/(g⋅∘C).0.128 J/(g⋅∘C). What is the final temperature if 305 J305 J of he

at is added to 94.0 g94.0 g of this metal, initially at 20.0 ∘C?
Physics
1 answer:
Makovka662 [10]3 years ago
6 0

Answer:

45.3°C

Explanation:

Heat gained = mass × specific heat × increase in temperature

q = mC (T − T₀)

Given C = 0.128 J/g/°C, m = 94.0 g, q = 305 J, and T₀ = 20.0°C:

305 J = (94.0 g) (0.128 J/g/°C) (T − 20.0°C)

T = 45.3°C

You might be interested in
A 20 kg mass is dropped from a tall rooftop and accelerates at 9.8 m/s2. What is the weight of the dropped object?
patriot [66]
Objects in free fall are weightless.
6 0
3 years ago
Read 2 more answers
Calculate the angle for the third-order maximum of 580-nm wavelength yellow light falling on double slits separated by 0.100 mm.
alekssr [168]

<u>Answer:</u> The angle of diffraction is 0.498°

<u>Explanation:</u>

To calculate the angle of diffraction, we use the equation given by Bragg, which is:

n\lambda =2d\sin \theta

where,  

n = order of diffraction = 3

\lambda = wavelength of the light = 580nm=5.80\times 10^{-7}m    (Conversion factor:  1m=10^{9}nm )

d = spacing between the crystal planes = 0.100 mm = 1.0\times 10^{-4}       (Conversion factor:  1 m = 1000 mm)

\theta = angle of diffraction = ?

Putting values in above equation:

3\times 5.80\times 10^{-7}=2\times 1.00\times 10^{-4}\sin \theta\\\\\sin \theta = 0.0087\\\\\theta=\sin ^{-1} (0.0087)=0.498

Hence, the angle of diffraction is 0.498°

6 0
3 years ago
20 POINTS
bekas [8.4K]
They can pretty much be by water i think
5 0
3 years ago
A 500kg car skids to a stop at a traffic light, leaving behind a 18.25m skid mark as it comes to a rest. Assuming that the car i
Nastasia [14]

Answer:

Coefficient of friction will be 0.587

Explanation:

We have given mass of the car m = 500 kg

Distance s = 18.25 m

Initial velocity of the car u = 14.5 m/sec

As the car finally stops so final velocity v = 0 m/sec

From second equation of motion

v^2=u^2+2as

0^2=14.5^2+2\times a\times 18.25

a=-5.76m/sec^2

We know that acceleration is given by

a=\mu g

5.76=\mu\times  9.81

\mu =0.587

So coefficient of friction will be 0.587

6 0
3 years ago
Hello I need help its due today!
telo118 [61]

Answer:This also means that Mercury's surface gravity is 3.7 m/s2, which is the equivalent of 38% of Earth's gravity (0.38 g). This means that if you weighed 100 kg (220 lbs) on Earth, you would weigh 38 kg (84 lbs) on Mercury.

Explanation:

5 0
2 years ago
Other questions:
  • An electrically neutral balloon is rubbed on cloth and becomes positively charged. What can be said about its mass?
    10·2 answers
  • Which force acts between two surfaces to prevent or slow motion
    15·1 answer
  • Suppose a dolphin sends out a series of clicks that are reflected back from the bottom of the ocean 80 m below. How much time el
    9·1 answer
  • Jeremiah was investigating different aspects of sound waves. He listened to two sounds. Sound 1 had a lower pitch than sound 2.
    10·1 answer
  • How are mechanical waves caused <br><br> please answer ASAP
    7·2 answers
  • Water is flowing through a pipe whose cross sectional area at point A is larger than the cross sectional area at point B. The re
    5·1 answer
  • In order to get a tree stump out of the ground, chains are connected to two trucks. One truck pulls with a force of 600 N to the
    9·1 answer
  • If you rub a balloon on a sweater, which will have more electrons?
    13·1 answer
  • Find the mass of an object with force 280 Newton and acceleration as 18 m/s2.​
    5·1 answer
  • A 3.8 kg ball is rolling eastward across a horizontal,
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!