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3 years ago

Convert 75.170 seconds into hours.

Physics

2 answers:

Neporo4naja [7]3 years ago

5 0

75.15mins i converted it for you

inn [45]3 years ago

4 0

Answer:0.02088056

Explanation:

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While watching some tv you see a circus show in which a woman drives a motorcycle around the inside of a vertical ring. you dete

Mila [183]

Since the biker is moving at constant speed

so we will have

$v = \frac{distance}{time}$

here we know that

$distance = 2\pi R$

time = 4 second

now we have

$v = \frac{2\pi R}{4} = \frac{\pi R}{2}$

now at the top point it feels free fall

so it is

$mg = \frac{mv^2}{R}$

$v^2 = Rg$

$(\frac{\pi R}{2})^2 = Rg$

$R = \frac{4g}{\pi^2}$

so height of the bike at the top is same as diameter

$h = 2R$

$h = \frac{8g}{\pi^2} = 7.95 meter$

Yes it will hurt on falling from this height

5 0

4 years ago

Hey! anybody knows the answer then help me i will mark your answer!!!

Volgvan

10/9

Explanation:

option 2 is the correct answer

8 0

3 years ago

A uniform rod 8m long weighing 5kg is supported horizontally by two vertical parallel strings at p and q and at distance 2m and

Gala2k [10]

Answer:

Fp = 36 N

Fq = 58 N

Explanation:

Let the left end be the reference end with string p closest to it.

Let CCW moments be positive

Sum moments about p to zero

1(9.8)[2 - 1] + Fq[6 - 2] - 5(9.8)[8/2 - 2] - 1.5(9.8)[5 - 2] - 2(9.8)[7 - 2] = 0

Fq[4] = 23.5(9.8)

Fq = 57.575 ≈ 58 N

Sum moments about q to zero

1(9.8)[6 - 1] - Fp[6 - 2] + 5(9.8)[6 - 8/2] + 1.5(9.8)[6 - 5] - 2(9.8)[7 - 6] = 0

Fp = 35.525 N

Sum vertical forces to zero

Fp + 57.575 - (9.8)(1 + 1.5 + 2 + 5) = 0

Fp = 35.525 ≈ 36 N

4 0

3 years ago

1. Let C = (1,4), P = (5,2), and P′ = (13,−2). There is a dilation that leaves C where it is and transforms P into P′. The point

V125BC [204]

Answer:

The dilatation is 3 because the <em>separation </em>between the dilatation center C and P grows by that factor of 3.

Explanation:

Between C and P, the separation is |5-1| = 4 in x-axis and |2-4| = 2 in y-axis
Between C and P', the separation is |13-1| = 12 in x-axis and |-2-4| = 6 in y-axis.

Comparing the separation on each direction, 12/4 = 3 and 6/2 = 3. Therefore, that's the dilatation value.

Alternatively, by computing the distances between the points

$\frac{\sqrt{\left(13-1\right)^2+\left(-2-1\right)^2}}{\sqrt{\left(5-1\right)^2+\left(-2-1\right)^2}}=\frac{6\sqrt{5}}{2\sqrt{5}}=3$

3 0

4 years ago

The (nonconservative) force propelling a 1.50 × 103-kg car up a mountain road does 4.70 × 106 J of work on the car. The car star

aliina [53]

Answer:

be the mehcanic for once and see what the answer is

Explanation:

6 0

4 years ago