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
kifflom [539]
2 years ago
6

Can someone help me with theses

Physics
2 answers:
Alenkasestr [34]2 years ago
5 0

Answer:

Answer to #1, is D.

Explanation:

The theory of plate tectonics states that the Earth's solid outer crust, the lithosphere, is separated into plates that move over the asthenosphere, the molten upper portion of the mantle. This is also, a theory with the ring of fire.

Tems11 [23]2 years ago
4 0

Answer:

D

Explanation:

Because it is impossible for a near 1,000,000 ton well anything to float

You might be interested in
Which one of the following statements concerning the momentum of a system when the net force acting on the system is equal to ze
Alex

Answer:

D

Explanation:

According to newton's 2nd law rate of change of momentum is directly proportional to the force applied on the body. Since, net Force is zero this means momentum did not change or momentum of the body remained constant.

Hence, the system have constant value of momentum. Therefore, option D is correct.

5 0
3 years ago
‘The Universe is expanding.’ Justify this statement with the Big bang model of universe and Hubble’s Law.
Taya2010 [7]

Explanation:

The expansion of the universe is the increase in distance between any two given ... Metric expansion is a key feature of Big Bang cosmology, is modeled mathematically with the ...

7 0
2 years ago
A hot-air balloon is rising upward with a constant speed of 2.03 m/s. When the balloon is 8.13 m above the ground, the balloonis
HACTEHA [7]
The answer is 4.2s...
7 0
2 years ago
Why does ice melt faster in water than in oil when both liquids are at the same temperature​
vekshin1
Water has a high specific heat capacity. Oil has a smaller heat capacity.
7 0
3 years ago
Read 2 more answers
A small sphere with mass m is attached to a massless rod of length L that is pivoted at the top, forming a simple pendulum. The
USPshnik [31]

Answer:

a) see attached, a = g sin θ

b)

c)   v = √(2gL (1-cos θ))

Explanation:

In the attached we can see the forces on the sphere, which are the attention of the bar that is perpendicular to the movement and the weight of the sphere that is vertical at all times. To solve this problem, a reference system is created with one axis parallel to the bar and the other perpendicular to the rod, the weight of decomposing in this reference system and the linear acceleration is given by

          Wₓ = m a

          W sin θ = m a

          a = g sin θ

b) The diagram is the same, the only thing that changes is the angle that is less

                θ' = 9/2  θ

             

c) At this point the weight and the force of the bar are in the same line of action, so that at linear acceleration it is zero, even when the pendulum has velocity v, so it follows its path.

The easiest way to find linear speed is to use conservation of energy

Highest point

            Em₀ = mg h = mg L (1-cos tea)

Lowest point

          Emf = K = ½ m v²

          Em₀ = Emf

          g L (1-cos θ) = v² / 2

              v = √(2gL (1-cos θ))

4 0
3 years ago
Other questions:
  • 1) Arrange the following spectral regions in order of increasing energy: infrared, microwave, ultraviolet, visible.
    8·1 answer
  • Which layer of the sun gives off the visible light normally seen from earth?
    5·1 answer
  • Y=1/2 at^2 solve for t
    8·1 answer
  • If a solution is forced to dissolve more solute than it normally can dissolve, the solution is
    12·1 answer
  • Calculate the kinetic energy of a car that travels at a speed of 20 m/s and has a mass of 1200 Kg
    15·1 answer
  • matt built a boat with a mass of 320g. When he tried it out, he found that it displaced 260g of water. did the boat sink or floa
    12·1 answer
  • Un vehiculo se desplaza con movimiento rectilio uniforme. Sabiendo que recorre 90 km en 3 horas. Averiguo la velocidad en m/s.
    11·1 answer
  • PLEASE HELP ME WITH THIS ONE QUESTION
    6·1 answer
  • Yall is this right
    14·1 answer
  • A descending elevator of mass 1,000 kg is uniformly decelerated to rest over a distance of 8 m by a cable in which the tension i
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!