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
ki77a [65]
3 years ago
11

What amount of temperature do you need to make a metamorphic rock?

Physics
1 answer:
sveta [45]3 years ago
6 0
Anywhere from 400 to 600 degrees Celsius  
You might be interested in
A fighter plane is flying overhead at mach 1.20. What angle does the wave front of the shock wave produced make relative to the
Sever21 [200]

Answer: 56.44°

Explanation:

<u>Given:</u>

  • Let u represent the current speed of the plane, <u>1.2 Mach</u>

<em>Converting to SI Units (m/s):</em>

= (1.2 mach)(340 ms^-1 / 1 Mach)

u  = 408 m/s

  • Speed of sound in air, v = 340 m/s

<u>Find:</u>

  • Angle the wave front of the shock wave relative to the plane's direction of motion, θ

We have, sinθ = speed of sound / speed of object

               sinθ = v / u

                   θ = sin^-1 (v / u)  

                      = sin^-1 (340 / 408)

                   θ = 56.44°

7 0
2 years ago
A security guard walks at a steady pace traveling 170 m in one trip around the perimeter of a building.
WARRIOR [948]
Speed= distance/time
Speed= 170/230
Speed=0.74 m/s
6 0
3 years ago
A block of mass M is attached to a spring of negligible mass and can slide on a horizontal surface along the x-direction, as sho
Hoochie [10]

Answer:

Because of the frictional force, the net force will oppose direction of the block and be directed towards the left even tho the spring exerts no force at this point

6 0
2 years ago
Light travels _____________ in a material with a higher index of refraction.
Aleks [24]
<span>Light travels Slower  in a material with a higher index of refraction.
because </span><span>Water has a higher index of refraction than air and it travels slower (bends) in water
high index mean slow travel
hope it helps</span>
4 0
3 years ago
Read 2 more answers
A person weighing 0.9 kN rides in an elevator that has a downward acceleration of 1.9 m/s^2. The acceleration of gravity is 9.8
Keith_Richards [23]

Answer:

The magnitude of the force is 0.7255kN

Explanation:

The elevator floor acts on the person with a force that is due to the gravitational acceleration less the downward acceleration of the elevator:

(force of floor F) = (mass of person m) x [ (grav. acceleration g) - (elevator acceleration a) ]

in other words, considering the elevator floor as a reference frame in the Earth's gravitational field, the person's weight decreases due to the downward acceleration, as follows:

F = m\cdot(g-a)

We are given the person's weight at rest, 0.9kN, from which the mass can be determined as:

900 N = m\cdot g \implies m = \frac{900N}{9.8 \frac{m}{s^2}}

So

F = \frac{900N}{9.8 \frac{m}{s^2}}\cdot(9.8-1.9)\frac{m}{s^2}\approx 725.5N=0.7255kN

3 0
3 years ago
Other questions:
  • Isaac Newton’s investigations of gravity explained which truth?
    9·1 answer
  • What is the speed of a car that traveled 300 miles in 6 hours?
    12·1 answer
  • A car moves to the right as shown. In order for the
    13·1 answer
  • The height of the Empire State Building is 318.00 meters. If a stone is dropped from the top of the building, what is the stone'
    8·1 answer
  • Is it true that mproving overall fitness may not be possible for people who have physical limitations.
    5·1 answer
  • The uniform bar of mass m and length l is balanced in the vertical position when the horizontal force p is applied to the roller
    14·1 answer
  • A object is placed between the focal point and the lens of a concave lens. Where will the image be formed?
    15·1 answer
  • An apple in a tree has a mass of 0.21 kg. If it is 7.2 meters above the ground, how much potential energy does it have?
    7·1 answer
  • Anyone help me do this question.. am giving the brainliest
    6·1 answer
  • The student hung the plastic strip over a wooden rod
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!