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3 years ago

The frame of reference for an outside observer of a moving

Physics

2 answers:

Molodets [167]3 years ago

6 0

The correct answer is true I am pretty sure

Marrrta [24]3 years ago

5 0

Answer:

false

Explanation:

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In asexual reproduction the new plant is identical to its parent. true false

Step2247 [10]

Answer:

YES

Explanation:

Asexual means the plant is identical to the parent

5 0

3 years ago

Read 2 more answers

a motorcycle is moving at a constant speend of 40 km/h. how long doesbit take for the motorcycle to travel a distance of 10 km

slava [35]

Time = distance/speed
thus = 10/40
which comes to 1/4th of the hour that's 60/4 which is 15 minutes

5 0

3 years ago

A 55-kg woman is wearing high heels. If each heel has a circular cross-section 6.0 mm in diameter and she puts all her weight on

bogdanovich [222]

Answer:

The pressure exerted by the woman on the floor is 1.9061 x 10⁷ N/m²

Explanation:

Given;

mass of the woman, m = 55 kg

diameter of the circular heel, d = 6.0 mm

radius of the heel, r = 3.0 mm = 0.003 m

Cross-sectional area of the heel is given by;

A = πr²

A = π(0.003)²

A = 2.8278 x 10⁻⁵ m²

The weight of the woman is given by;

W = mg

W = 55 x 9.8

W = 539 N

The pressure exerted by the woman on the floor is given by;

P = F / A

P = W / A

P = 539 / (2.8278 x 10⁻⁵ )

P = 1.9061 x 10⁷ N/m²

Therefore, the pressure exerted by the woman on the floor is 1.9061 x 10⁷ N/m²

5 0

3 years ago

Which of the following refers to a force acting toward the center of a circular

Masja [62]

Answer:

D. Centripetal Force :)

3 0

3 years ago

A hovering mosquito is hit by a raindrop that is 50 times as massive and falling at 8.4 m/s, a typical raindrop speed. How fast

kenny6666 [7]

The final velocity after the collision is 8.2 m/s

Explanation:

We can solve this problem by using the law of conservation of momentum: in fact, if we consider the system to be isolated (=no external unbalanced forces), the total momentum of the raindrop+mosquito must be conserved before and after the collision.

If the collision is perfectly inelastic, moreover, the raindrop and the mosquito stick together and travel at the same velocity v after the collision.

Mathematically:

$p_i = p_f\\m_1 u_1 + m_2 u_2 = (m_1+m_2)v$