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
nikdorinn [45]
3 years ago
7

A common characteristic of mountains formed by two colliding continents is marine _______ rock. A. sedimentary B. limestone C. i

gneous D. metamorphic
Physics
1 answer:
Fiesta28 [93]3 years ago
4 0
The answer is A. Sedimentary
You might be interested in
why it's impossible for baseball players to make sharp turns when moving form base to base? explain using Newton 1st law "object
AVprozaik [17]

Answer:

An object that is moving wants to stay moving in a straight line. It takes an outside force acting upon it to change its direction or cause an acceleration.

Explanation:

7 0
3 years ago
A 25 kh inductor carries a current of 60 ma. how much energy is stored in this system
IgorLugansk [536]
Energy stored= Li^2/2
=45 W
8 0
3 years ago
The platform height for Olympic divers is 10 m. A 60 kg diver steps off the platform to begin his dive.
azamat

Answer:

a) Ep = 5886[J]; b) v = 14[m/s]; c)   W = 5886[J]; d) F = 1763.4[N]

Explanation:

a)

The potential energy can be found using the following expression, we will take the ground level as the reference point where the potential energy is equal to zero.

E_{p} =m*g*h\\where:\\m = mass = 60[kg]\\g = gravity = 9.81[m/s^2]\\h = elevation = 10 [m]\\E_{p}=60*9.81*10\\E_{p}=5886[J]

b)

Since energy is conserved, that is, potential energy is transformed into kinetic energy, the moment the harpsichord touches water, all potential energy is transformed into kinetic energy.

E_{p} = E_{k} \\5886 =0.5*m*v^{2} \\v = \sqrt{\frac{5886}{0.5*60} }\\v = 14[m/s]

c)

The work is equal to

W = 5886 [J]

d)

We need to use the following equation and find the deceleration of the diver at the moment when he stops his velocity is zero.

v_{f} ^{2}= v_{o} ^{2}-2*a*d\\where:\\d = 2.5[m]\\v_{f}=0\\v_{o} =14[m/s]\\Therefore\\a = \frac{14^{2} }{2*2.5} \\a = 39.2[m/s^2]

By performing a sum of forces equal to the product of mass by acceleration (newton's second law), we can find the force that acts to reduce the speed of the diver to zero.

m*g - F = m*a

F = m*a - m*g

F = (60*39.2) - (60*9.81)

F = 1763.4 [N]

3 0
2 years ago
Một cái đĩa có bán kính R quay quanh trục vuông góc và đi qua tâm đĩa theo phương trình ϕ = at3 + bt2 + c;Tìm gia tốc tiếp tuyến
Rama09 [41]

Answer:

Gnlhjsfyjjgisiidisc. Gihiingiifciucuc

5 0
2 years ago
Read 2 more answers
What displacement in cm would occur with a 75 N/m spring if you placed a 300 N weight on the spring?
ollegr [7]

Surface tension=75N/m

Weight=300N

\\ \bull\tt\longmapsto Surface\:Tension=\dfrac{Weight}{Displacement}

\\ \bull\tt\longmapsto Displacement=\dfrac{Weight}{Surface\:Tension}

\\ \bull\tt\longmapsto Displacement=\dfrac{300}{75}

\\ \bull\tt\longmapsto Displacement=4m

\\ \bull\tt\longmapsto Displacement=400cm

6 0
2 years ago
Other questions:
  • How does the planet Venus look to a person standing on the Earth?
    14·1 answer
  • Why do when you sit a apple out for 30 seconds it start to get rotten?​
    7·1 answer
  • Which galaxy type is smooth and uniform in appearance, where no new stars are forming?
    5·1 answer
  • A solenoid coil with 22 turns of wire is wound tightly around another coil with 340 turns. The inner solenoid is 25.0 cm long an
    9·2 answers
  • Curves on some test tracks and race courses, such as the Daytona International Speedway in Florida, are very steeply banked.
    11·1 answer
  • How does heat move through the atmosphere?
    14·1 answer
  • When charges build up on a surface they:
    6·2 answers
  • If a ball has 300 Joules of potential energy at its highest point, how much kinetic energy will it have at its highest speed?
    7·1 answer
  • What's the effect of mass and speed on kinetic energy
    5·1 answer
  • Which of these objects must have the greatest force acting on it? pls help fast
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!