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
mezya [45]
2 years ago
11

I need to figure out A but i’m not sure how

Physics
1 answer:
Damm [24]2 years ago
4 0

Answer:

cc

Explanation:

You might be interested in
Practicing good human relations skills and having a positive attitude will
skad [1K]
Have a positive effect on you as a human being. Your attitude will improve, your charisma will spread, and you will a better, more well rounded person.
7 0
3 years ago
Read 2 more answers
Select a musical instrument. Research the instrument and explain how it works in terms of sound production and resonance. Descri
iren [92.7K]
1. I think a drum would be the easiest instrument to explain. You can vary the pitch and loudness by hitting it with different intensities or at different points or angles.

PS. I'm not talking about a drumset. I'm talking about an ordinary drum.

2. Different types of instruments sound different even though they play the same notes because they use different mechanisms for producing sound.

7 0
3 years ago
Read 2 more answers
Which has more thermal energy: lake or a cup of hot chocolate?
lawyer [7]
Though the hot cocoa would have a higher temperature, the lake would have more thermal energy because it has more molecules with a greater total internal energy.
4 0
3 years ago
Pls help in these 2 questions
Nadya [2.5K]

Answer:

Taking forces along the plane

F cos θ - M g sin θ -100 = M a       net of forces along the plane

F = (M a + M g * .5 + 100) / .866     solving for F

F = (80 * 1.5 + 80 * 9.8 * .5 + 100) / .866 = 707 N

F = 707 N acting along the plane

Fn = F sin θ + M g cos θ       forces acting perpendicular to plane

Fn = 707 * 1/2 + 80 * 9.8 * .866 = 1030 Newtons   forces normal to plane

(this would give a coefficient of friction of 100 / 1030 = .097 = Fn)

4 0
2 years ago
Determine the maximum shearing stress in a solid shaft of 1.5-in. diameter as it transmits 75 hp at a speed of 1800 rpm. (Round
erma4kov [3.2K]

Answer:

\tau=3.96\ ksi

Explanation:

Given that

d= 1.5 in                      ( 1 in = 0.0254 m)

d= 0.0381 m

P= 75 hp                      ( 1 hp = 745.7 W)

P= 55927.5 W

N= 1800 rpm

We know that power P is given as

P=\dfrac{2\pi N\ T}{60}

T=Torque

N=Speed

55927.5=\dfrac{2\times \pi \times 1800\ T}{60}

T=296.85 N.m

The maximum shear stress is given as

\tau=\dfrac{16 T}{\pi d^3}

\tau=\dfrac{16\times 296.85}{\pi \times 0.0381^3}

\tau=27.35\ MPa

We know that 1 MPa =0.145 ksi

\tau=3.96\ ksi

3 0
3 years ago
Other questions:
  • If only some of the light that hits an object is reflected, predict what might happen to the rest of the light.
    14·1 answer
  • The student makes a drawing of a carbon atom. Which of these should the student show in the nucleus of the atom?
    15·1 answer
  • Resistance of rod is 1 ohm. It is bent in the form of square. The resistance across adjoint corners is.​
    10·1 answer
  • A diver jumps up off a pier at an angle of 25° with an initial velocity of 3.2 m/s. How far from the pier will the diver hit the
    9·2 answers
  • What’s the voltage of a battery in a circuit with resistance of 3 ohms and current of 5 amps?
    10·1 answer
  • A particle moving along the y-axis has the potential energy u =4y3j, where y is in m. what is the y-component of the force on th
    13·1 answer
  • HELP ASAP
    7·1 answer
  • Which unit abbreviation is a measurement of force?
    11·1 answer
  • This is being graded.<br><br><br>Great answers only<br><br><br>​
    12·1 answer
  • When a scientific calculator shows the quantity below, what does it mean?<br> 1.5E8
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!