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
antiseptic1488 [7]
3 years ago
10

Help??????????????????????????

Physics
1 answer:
hammer [34]3 years ago
3 0

Answer:

imma go with either b or A

You might be interested in
A worker pushes a crate horizontally across a warehouse floor with a force of 245 N at an angle of 55 degrees below the horizont
aev [14]

Answer:

option A

Explanation:

given,

For exerted by the worker = 245 N

angle made with horizontal = 55°

we need to calculate Force which is not used to move the crate = ?

Movement of crate is due to the horizontal component of the force.

Crate will not move due to vertical force acting on the it.

F_y = F sin \theta

F_y = 245\times sin 55^0

F_y =200.69

hence, worker's force not used to move the crate is equal to 200.69

The correct answer is option A

6 0
3 years ago
Read 2 more answers
If the coefficient alpha for a stress scale was computed to be 0.80, the scale would be:
Lina20 [59]

If the coefficient alpha for a stress scale was computed to be 0.80, the scale would be strongly reliable. A coefficient alpha that is at least 0.70 and above is considered to have a strong internal consistency, which means the items in the scale are closely related as a group.

5 0
3 years ago
Every object that has mass attracts every other object with a gravitational force: It has been proven that the size of the
denpristay [2]

Answer:

this is a law because it is a constant fact of nature

Explanation:

7 0
3 years ago
Read 2 more answers
Q.1- A 3000 cm3 tank contain O2 gas at 20 °C and a gauge pressure of 2.5 x 106 Pa. Find the mass of oxygen in the tank.
exis [7]
20c because te mass of the object is larger than the table
3 0
3 years ago
A mother is helping her children, of unequal weight, to balance on a seesaw so that they will be able to make it tilt back and f
horsena [70]

Answer:

L₁ = W×L / w

Explanation:

The scenario is shown in the image below.

<u>At the pivot point, the torque acting on this point must be zero so that there will be easy back and forth without the heavier child.</u>

<u>Torque created by lighter child + Torque created by the heavier child = 0</u>

Thus,

According to the axis system, the heavier child is left to the pivot (origin), so,

W×(- L ) + w× L₁ = 0

So,

<u>L₁ = W×L / w</u>

7 0
4 years ago
Other questions:
  • The pressure observed after reaction with Zn metal and HCl should be corrected to subtract the pressure due to water vapor prese
    9·1 answer
  • Un ladrillo se le imparte una velocidad inicial de 6m/s en su trayectoria hacia abajo. ¿cual sera su velocidad final despues de
    9·1 answer
  • A football field is about 100m long. If it takes a person 20s to run its length, how fast were they running?
    6·1 answer
  • A grating with 410 grooves/mm is used with an incandescent light source. Assume the visible spectrum to range in wavelength from
    14·1 answer
  • You drive your car in a straight line at 15 m/s for 10 kilometers, then at 25 m/s for another 10 kilometers.
    13·1 answer
  • an airplane is traveling at an altitude of 31,360. a box of supplies is driped from the cargo hold how long will it take to reac
    11·1 answer
  • A 2.10 cm × 2.10 cm square loop of wire with resistance 1.30×10−2 Ω has one edge parallel to a long straight wire. The near edge
    8·1 answer
  • Explain in 2-3 sentences how a genotype determines a phenotype! <br> Will give b to the best one
    5·1 answer
  • Pls help me this is being timed.
    8·1 answer
  • A block weighing 30kg is moved at a constant speed over a horizontal surface by a force of 100 N applied parallel
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!