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
When electrons are moving freely between many positive ions, what type of bond is occuring?
exis [7]

Answer:

a metallic

Explanation:

Metal atoms are joined together by metallic bonds. Metals can form cations (positive ions) with a sea of delocalized electrons.

8 0
2 years ago
What formula can be used to calculate [H30+]?
elena-s [515]

[H3O+] is just the same with [H+]. There are quite a few relationships between [H+] and [OH−] ions. And because there is a large range of number between 10 to 10-15 M, the pH is used. pH = -log[H+] and pOH = -log[OH−]. In aqueous solutions, [H+ ][OH- ] = 10-14. 

8 0
3 years ago
- Which of the following does not move as a transverse wave?
Sedaia [141]

Answer:

- Which of the following does not move as a transverse wave?

<em>B. sound waves</em>

because sound waves are longitudinal waves having compressions and rare factions.

Which of these effects describes the change in pitch we hear

moving motorbike goes past?

<em>D</em><em>.</em><em> </em><em>Doppler</em><em> </em><em>eff</em><em>ect</em>

Doppler effect is the phenomenon where there is apparent change in frequency (pitch) and wavelength of a wave due to relative motion of the sound source.

Which of the following does not make use of total internal reflection.

<em>B</em><em>.</em><em> </em><em>Endos</em><em>cop</em><em>e</em>

Endoscope doesn't use total internal reflection since no refraction takes place.

6 0
2 years ago
Which of the following surface will absorb radiant heat energy best
OLga [1]

Answer:

D. Black

Explanation:

hope I help you.

3 0
2 years ago
Read 2 more answers
A dart is inserted into a spring-loaded dart gun by pushing the spring in by a distance x. For the next loading, the spring is c
bezimeni [28]

Answer:

The second dart leaves the gun two times as faster than the first one.

Explanation:

Assuming no energy loss during the spring-dart energy transfer, we have by the conservation of energy principle

U_s = K_d \\ \frac{1}{2} kx^2 = \frac{1}{2}mv^2 \\ v = \sqrt{\frac{k}{m}x^2}.

Given an arbitrary x and its double, 2x, launch velocities are

v_1 = \sqrt{\frac{k}{m}x^2} \text{ and} \\ v_2 = \sqrt{\frac{k}{m}\left(2x\right)^2} = \sqrt{\frac{k}{m}4x^2} = 2\sqrt{\frac{k}{m}x^2} = \mathbf{2v_1}.

7 0
3 years ago
Other questions:
  • Critical thinking requires that _______. a. conclusions be held constant after their initial determination b. conclusions be adj
    13·2 answers
  • When hung from an ideal spring with spring constant k = 1.5 N/m, it bounces up and down with some frequency ω, if you stop the b
    6·1 answer
  • Two football players each applied 100 n of force to sack the qb and move him 3 meters downfield. How much work was done?
    13·1 answer
  • A nonconducting sphere has radius R = 2.81 cm and uniformly distributed charge q = +2.35 fC. Take the electric potential at the
    7·1 answer
  • The asteroid Ceres has a mass 6.797 × 1020 kg and a radius of 472.9 km. What is g on the surface? The value of the universal gra
    13·1 answer
  • A skateboarder travels on a horizontal surface with an initial velocity of 3.6 m/s toward the south and a constant acceleration
    5·1 answer
  • A 2.0-kg mass swings at the end of a light string (length = 3.0 m). Its speed at the
    12·1 answer
  • This is actually physical science but there isn’t a tag for that☹︎
    11·1 answer
  • Why can we hear sound around a corner but not see light
    6·1 answer
  • Question 1 of 12
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!