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
Irina-Kira [14]
3 years ago
9

The work of warren washington would be most likely to explain which of the following phenomena

Physics
1 answer:
Inessa [10]3 years ago
7 0

Answer:

t

Explanation:

You might be interested in
The color red that we see depends upon the :
Anastaziya [24]

if i am correct the answer is d. because depending on how far a wavelength goes we see different colors.

7 0
3 years ago
Read 2 more answers
A mass of 267 g is attached to a spring and set into simple harmonic motion with a period of 0.176 s. If the total energy of the
Gnoma [55]

Answer:

(a) 7.1 m /sec

(b) 339.9 N/m

(c) 19.91 cm

Explanation:

We have given mass m = 267 gram = 0.267 kg

Time period T = 0.176 sec

Total energy of the oscillating  system = 6.74 J

We know that energy is given by

(a) Ke=\frac{1}{2}mv_{max}^2

6.74=\frac{1}{2}\times 0.267\times v_{max}^2

v_{max}=7.1m/sec

(b) Now \omega =\frac{2\pi }{T}=\frac{2\times 3.14}{0.176}=35.681rad/sec

We know that \omega =\sqrt{\frac{k}{m}}

35.68=\sqrt{\frac{k}{0.267}}

k=339.9N/m

(c) We know that energy is given by

E=\frac{1}{2}KA^2

6.74=\frac{1}{2}\times 339.9\times A^2

A=19.91cm

4 0
3 years ago
Can anyone pls answer this plss plss I'm not sure which one it is​
lyudmila [28]

Answer:

a) wet marble , dry marble, newspaper, and towel

5 0
3 years ago
A small water pump is used in an irrigation system. The pump takes water in from a river at 10oC, 100 kPa at a rate of 5 kg/s. T
sergij07 [2.7K]

Answer:

0.98kW

Explanation:

The conservation of energy is given by the following equation,

\Delta U = Q-W

\dot{m}(h_1+\frac{1}{2}V_1^2+gz_1)-\dot{W} = \dot{m}(h_2+\frac{1}{2}V_2^2+gz_)

Where

\dot{m} = Mass flow

h_1 =Specific Enthalpy (IN)

h_2 = Specific Enthalpy (OUT)

g = Gravity

z_{1,2} = Heigth state (In, OUT)

V_{1,2} =Velocity (In, Out)

Our values are given by,

T_i = 10\°C

P_1 = 100kPa

\dot{m} = 5kg/s

z_2 = 20m

For this problem we know that as pressure, temperature as velocity remains constant, then

h_1 = h_2

V_1 = V_2

Then we have that our equation now is,

\dot{m}(gz_1) = \dot{m}(gz_2)+\dot{W}

\dot{W} = \frac{(5)(9.81)(0-20)}{1000}

\dot{W} = -0.98kW

8 0
3 years ago
Many types of scientific equipment are used to perform different functions in the science lab.Which of the folllowing combinatio
faltersainse [42]

Answer:

Many types of scientific equipment are used to perform different functions in the science lab. Which of the following combinations of equipment would be needed to bring one liter of water to 85°C? a. ... Various pieces of safety equipment are used in the lab to provide protection against injury.

Explanation:

6 0
3 years ago
Other questions:
  • 1.5kj of energy are used every second by a microwave oven, what is the power rating of the oven?
    15·2 answers
  • For a plane mirror,how is the object s related to the distance s?
    6·1 answer
  • a canary sits 10 m from the edge of a 30-m-long clothesline, and a grackle sits 5 m from the other end. The rope is pulled by tw
    5·1 answer
  • Algorithm to determine number of shortest paths between two nodes
    15·1 answer
  • In describing a vector, what must you describe besides the magnitude?
    10·1 answer
  • A glowing electric light bulb placed 15 cm from a concave spherical mirror produces a real image 8.9 from the mirror. the light
    7·1 answer
  • The volume control on a surround-sound amplifier is adjusted so the sound intensity level at the listening position increases fr
    5·1 answer
  • Give me an atom with the following characteristics.
    10·1 answer
  • What’s the surface temperature of earth
    10·1 answer
  • 1. What causes some atoms of the same element<br> to have different atomic masses?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!