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
Elena-2011 [213]
3 years ago
9

What electrical appliance was invented in 1910

Physics
1 answer:
Minchanka [31]3 years ago
6 0
I think the toaster was invented in 1910

You might be interested in
Which of the following best describes a plane?
ASHA 777 [7]

From that list of choices, choice 'B' is the only example of a plane,
but it doesn't 'describe' it at all.
7 0
3 years ago
What is the heart rate recorded a few minutes after completing a workout?
DochEvi [55]
Correct answer should be C
8 0
3 years ago
Read 2 more answers
A projectile launcher has a mass of 3 kg. It fires a projectile of mass 0.08 kg horizontally at a speed of 300 m/s. a. What is t
alexdok [17]

Answer:

0

Explanation:

It’s before the projectile was fired, so nothing has happened yet.

6 0
2 years ago
The small piston of a hydraulic lift has a cross-sectional of 3 00 cm2 and its large piston has a cross-sectional area of 200 cm
Nesterboy [21]

Q: The small piston of a hydraulic lift has a cross-sectional of 3.00 cm2 and its large piston has a cross-sectional area of 200 cm2. What downward force of magnitude must be applied to the small piston for the lift to raise a load whose weight is Fg = 15.0 kN?

Answer:

225 N

Explanation:

From Pascal's principle,

F/A = f/a ...................... Equation 1

Where F = Force exerted on the larger piston, f = force applied to the smaller piston, A = cross sectional area of the larger piston, a = cross sectional area of the smaller piston.

Making f the subject of the equation,

f = F(a)/A ..................... Equation 2

Given: F = 15.0 kN = 15000 N, A = 200 cm², a = 3.00 cm².

Substituting into equation 2

f = 15000(3/200)

f = 225 N.

Hence the downward force that must be applied to small piston = 225 N

8 0
3 years ago
A small steel roulette ball rolls around the inside of a 30 cm diameter roulette wheel. It is spun at 150 rpm, but is slows to 6
liraira [26]

Solution :

Given

Diameter of the roulette ball = 30 cm

The speed ball spun at the beginning = 150 rpm

The speed of the ball during a period of 5 seconds = 60 rpm

Therefore, change of speed in 5 seconds = 150 - 60

                                                                      = 90 rpm

Therefore,

90 revolutions in 1 minute

or In 1 minute the ball revolves 90 times

i.e. 1 min = 90 rev

     60 sec = 90 rev

        1 sec = 90/ 60 rec

         5 sec = $\frac{90}{60}\times 5$

                   = 75 rev

Therefore, the ball made 75 revolutions during the 5 seconds.

7 0
2 years ago
Other questions:
  • The earth exerts a gravitational force of 500 N on Amy. What is Amy’s mass in kg?
    13·1 answer
  • Carbon dioxide is a gas produced by___ and used by ___
    5·1 answer
  • A Russian athlete lifts 300kg to a height of 2.5 m in 2 seconds. What is the work done? And what power is exerted?
    10·1 answer
  • Describe the total momentum of billiard balls before and after the cue ball collides with another ball.
    10·2 answers
  • Which type of energy is released when a nucleus is split apart?
    5·2 answers
  • Your boss asks you compare two sound waves and determine which has the higher frequency. Wave A has a period of 4⁄100 second and
    6·2 answers
  • What are SI units, and why are they used?
    5·2 answers
  • Which is an example of current electricity?
    11·1 answer
  • A weather balloon has a volume of 35 L at sea level (1.0 atm). After the balloon is released it rises to where the air pressure
    10·1 answer
  • The blue, hotter stars tend to have shorter lifetimes than the red, cooler stars.<br> true<br> false
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!