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
zlopas [31]
3 years ago
12

Plz help me yesterdays answer was wrong....

Physics
1 answer:
Anettt [7]3 years ago
3 0

Answer:

water

mercury in thermometer

volume gas thermometer

jar lids

power lines

You might be interested in
Determine the kinetic energy of a 1000-kg roller coaster car that is moving with a speed of 20.0 m/s.
Nookie1986 [14]

Answer:

The kinetic energy is 200.000 Joule (200KJoule)

Explanation:

We use the formula of kinetic energy:

Ec =1/2 x  m x v^2

Ec=1/2 x 1000kg x (20m/s)^2 = 200.000Joule

200.000J/1000KJ/J=200 kJoule

3 0
3 years ago
Someone help with this pls
Elan Coil [88]
The answer would be 91.44
3 0
3 years ago
Read 2 more answers
A light with frequency of 3.5 x 10^15 Hz is utilized to illuminate the selenium metal (work function 5.11 eV). What will be the
ruslelena [56]

Answer:

The maximum speed of the ejected photoelectrons is 1.815 x 10⁶ m/s.

Explanation:

Given;

frequency of the light, f = 3.5 x 10¹⁵ Hz

work function of the metal, Φ = 5.11 eV

                                              Φ = 5.11 x 1.602 x 10⁻¹⁹ J = 8.186 x 10⁻¹⁹ J

The energy of the incident light is given as sum of maximum kinetic energy and work function of the metal.

E = K.E + Φ

where;

E is the energy of the incident light, calculated as;

E = hf

E = (6.626 x 10⁻³⁴)(3.5 x 10¹⁵)

E = 2.319 x 10⁻¹⁸ J

The maximum kinetic energy of the photoelectrons is calculated as;

K.E = E - Φ

K.E = 2.319 x 10⁻¹⁸ J  - 8.186 x 10⁻¹⁹ J

K.E =  2.319 x 10⁻¹⁸ J - 0.8186 x 10⁻¹⁸ J

K.E = 1.5004 x 10⁻¹⁸J

The maximum speed of the ejected photoelectrons in 10⁶ m/s  is given as;

K.E = ¹/₂mv²

v_{max}^2 = \frac{2K.E}{m} \\\\v_{max}= \sqrt{\frac{2K.E}{m}} \\\\v_{max} =  \sqrt{\frac{2(1.5 \ \times \ 10^{-18})}{(9.11 \ \times \ 10^{-31})}}\\\\v_{max} =1.815 \ \times \ 10^{6} \ m/s

Therefore, the maximum speed of the ejected photon-electrons is 1.815 x 10⁶ m/s.

4 0
3 years ago
Simpson drives his car with an average velocity of 85 km/h eastward. How long will it take him to drive 560 km on a perfectly st
Nutka1998 [239]

hahahahahahhha

wag kayo umasa sa brainly

7 0
3 years ago
Read 2 more answers
What can we say about the forces? A. They are balanced. B. They are unbalanced. C. They are not in equilibrium.​
yulyashka [42]

You can say anything you want to about them without fear of contradiction. There's no information here to prove you wrong.

5 0
3 years ago
Other questions:
  • How does refraction support the particle theory of light? Particles bounce off surfaces similar to the way in which a ball bounc
    12·2 answers
  • Which measurement is equivalent to 350 milliliters?
    7·2 answers
  • A student is playing with a radio-controlled race car on the balcony of a sixth-floor apartment. An accidental
    12·1 answer
  • Write a responding to the prompt.<br><br><br><br>What role does mass play in gravitational forces
    11·1 answer
  • How could some chemical changes be reversed?
    12·2 answers
  • a cannonball is fired with a speed of 76 m/s from the top of a cliff. It strikes the plane below with a speed of 89 m/s. if we n
    5·1 answer
  • Why is an organism that reproduces asexually genetically identical to its parent?
    8·2 answers
  • If a critical mass of fissionable material in a spherical shape is flattened like a hamburger, it will be?
    15·1 answer
  • A Cat is on a balcony floor (90cm below the railing), keenly eyeing a butterfly hovering 60 cm above the railing. With what spee
    10·1 answer
  • Calculate the gravitational potential energy is a bicycle of mass 20kg and its rider of mass 50kg cycle to the top of a hill 120
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!