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2 years ago

Volcanic eruptions are caused primarily by the movement of

Physics

1 answer:

Assoli18 [71]2 years ago

4 0

The answer is Tectonic Plates

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4. Analyze: What can you say about the acceleration of dividers when the pressure increases

Pavlova-9 [17]

Answer:

if increase the pressure in a system the acceleration should increase

Explanation:

The definition of pressure is

P = F / A

Where F is the force and A the area

F = P A

Let's write Newton's second law

F = ma

We substitute

P A = m a

So we see that the pressure is directly proportional to the acceleration, if increase the pressure in a system the acceleration should increase

5 0

3 years ago

A crane lifts an air conditioner to the top of a building. If the building is 12 m high, and the air conditioner has a mass of 2

Ganezh [65]

Work needed = 23,520 J

<h3> Further explanation </h3>

Given

height = 12 m

mass = 200 kg

Required

work needed by the crane

Solution

Work is the transfer of energy caused by the force acting on a moving object

Work is the product of force with the displacement of objects.

Can be formulated

W = F x d

W = Work, J, Nm

F = Force, N

d = distance, m

F = m x g

Input the value :

W = mgd

W = 200 kg x 9.8 m/s²x12 m

W = 23520 J

5 0

2 years ago

A pendulum clock is taken to the moon (g = 1.6 N/kg). How long must the pendulum be in order for the clock to

mamaluj [8]

Answer:

0.041 m

Explanation:

T = 2π√(L/g)

1 s = 2π√(L / (1.6 N/kg))

L = 0.041 m

4 0

3 years ago

A student is running to catch the campus shuttle bus, which is stopped at the bus stop. The student is runnign at a constant spe

Serggg [28]

Answer:

Part a)

$t = 16.8 s$

$d = 100.8 m$

Part b)

$v_f = 2.86 m/s$

Explanation:

Part a)

Constant speed by which the student will run is given as

$v = 5 m/s$

now after some time if student is going to overtake the position of bus

so here the final positions will be same

so we have

$x_{bus} = x_{student}$

$0 + \frac{1}{2}at^2 + d = v_{student} t$

$\frac{1}{2}(0.170)t^2 + 60 = 5 t$

$0.085 t^2 - 5t + 60 = 0$

so it is

$t = 16.8 s$

So student will run the total distance

$d = vt$

$d = (6)(16.8)$

$d = 100.8 m$

Part b)

Speed of bus when student reach the bus is given as

$v_f = v_i + at$

$v_f = 0 + (0.170)(16.8)$

$v_f = 2.86 m/s$

4 0

3 years ago

Please help! What are 3 things that make Longitudinal and Transverse waves the same?

Flura [38]

"<span>All waves have frequency, wavelength, speed and amplitude." </span>

4 0

3 years ago