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
UNO [17]
3 years ago
6

Write the types of lever with 5.5 example​

Physics
1 answer:
tekilochka [14]3 years ago
7 0

First class lever -- Teeter-totter, Oars on a boat, Catapult, Shoehorn, Scissors, Pair of pliers

Second class lever -- Wheelbarrow, Crowbar, Nut cracker, Doors or gates, bottle openers

Third class lever -- Tweezers, Stapler, Mousetrap, Broom, Hockey stick

You might be interested in
A disoriented physics professor drives 3.25 km north, then 2.20 km west, and then 1.50 km south. Find the magnitude and directio
Nana76 [90]

Answer: magnitude of resultant = 2.811km, direction of resultant = 209.6°

Explanation: The vector ( in this case displacement) that lies on the y axis is 3.25km north and 1.50km due south.

Their resultant is gotten below

Magnitude of resultant = 3.25 - 1.50 = 1.75km

Direction of resultant = north (direction of the bigger vector)

2.20km is the only vector acting on the x axis due east, combining this vector with the resultant of the vectors above, we realize that 2.2km west is perpendicular to 1.75km due north. Since 1.75km us due north, it implies that it is the vector on the positive y axis (vy) and 2.20km due west implies that it is the vector on the negative x axis(vx), thus their resultant is gotten using phythagoras theorem.

R = √ vx² + vy²

R = √ 2.20² + 1.75²

R = √ 7.9025

R= 2.1811km.

θ = tan^-1 (vy/vx)

θ = tan ^-1 (1.25/2.20)

θ = tan ^-1 (0.5618)

θ = 29.6°.

The direction of the vector is south west which implies the third quadrant of the trigonometric quadrant which implies 180 + θ

Thus the direction of the vector is 180 + 29.60 = 209.6°

From the picture attached to this answer we can see roughly that the magnitude of resultant is longer than it component and the vector is placed on the 3rd quadrant which verifies our quantitative claim.

4 0
3 years ago
The maximum electric field strength in air is 3.0 Mv/m . Stronger electric fields ionize the air and create a spark. What is the
adoni [48]

Answer:

The value is  P_{max} =  2.11 * 10^{6} \  W

Explanation:

From the question we are told that  

    The maximized electric field strength is  E =  3.0 \ MV/m = 3.0 *10^{6} \  V/m

     The diameter is  d =  1.5\ cm  =  0.015 \  m

Generally the cross -sectional area is mathematically represented as

 =>      A =  \frac{\pi * d^2 }{4}

 =>      A =  \frac{3.142  * 0.015^2 }{4}

 =>      A = 0.0001767 \  m^2

Generally the maximum power is mathematically represented as

       P_{max} =  \frac{E_{max}^2}{ 2 * \mu_o * c }  *  A

Here c is the speed of light with value  c =  3.0 *10^{8} \  m/s

        \mu_o is the permeability of free space with value  \mu_o  = 4 \pi *10^{-7} \  H/m

      P_{max} =  \frac{ (3.0 *10^{6})^2}{ 2 * (4 \pi *10^{-7}) * 3.0 *10^{8} }  *   0.0001767

=>   P_{max} =  2.11 * 10^{6} \  W

4 0
2 years ago
On a straight road with the +x axis chosen to point in the direction of motion, you drive for 5 hours at a constant 20 miles per
Leviafan [203]

Answer:

v = 26.7 mph

Explanation:

During the first 5 hours, at a constant speed of 20 mph, we find the total displacement to be as follows:

Δx₁ = v₁*t₁ = 20 mph*5 h = 100 mi

Assuming we can neglect the displacement during the speeding up from 20 to 60 mph, we can find the the total displacement at 60 mph as follows:

Δx₂ = v₂*t₂ = 60 mph*1 h = 60 mi

So, the total displacement during all the trip wil be:

Δx = Δx₁ + Δx₂ = 100 mi + 60 mi = 160 mi

So we can find the the average velocity during the 6-hour period, applying the definition of average velocity, as follows:

v = Δx / Δt = 160 mi / 6 h = 26.7 mph

8 0
3 years ago
Physics multiple choice
Aleksandr-060686 [28]

10. b

11.d

12. b

13.e

I hope this helps

3 0
3 years ago
Read 2 more answers
From the lab iodine clock reaction: explain the reason this result by comparing what is involved in changing Fe2+ into Fe 3+ to
uranmaximum [27]
What is involved in C02 is carbon dioxide
3 0
3 years ago
Other questions:
  • Randy observed that cooked onions in his food taste very differently from the raw onions that he had on his salad. He wondered w
    13·2 answers
  • Your boss asks you to design a room that can be as soundproof as possible and provides you with three samples of material. The o
    13·1 answer
  • Why do you think the earth has fewer craters than the moon
    8·1 answer
  • A charge of -2.720 μC is located at (3.000 m , 4.591 m ), and a charge of 1.600 μC is located at (-2.626 m , 0).There is one poi
    9·1 answer
  • The Doppler effect is an effect produced by a moving source of sound or electromagnetic waves due to the relative motion of a so
    13·2 answers
  • What is the formula for calculating the net force of an object
    10·1 answer
  • Calculate the pressure in pascals if a 560N is applied to an area of 1.6m².​
    5·1 answer
  • An arrow is shot vertically downwards, and strikes the ground at a speed of 29.2 m/s, 10.9 m below from where it was shot. With
    9·1 answer
  • Why this app says im in high school.?. im in middle and im 13
    7·1 answer
  • Sound is capable of travelling in which medium or media ?<br><img src="https://tex.z-dn.net/?f=%20%5C%5C%20" id="TexFormula1" ti
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!