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Fed [463]
3 years ago
15

Identify an object that is similar to the shape of a planet.

Physics
2 answers:
Natali5045456 [20]3 years ago
7 0
Sense of planet is the shape of a sphere I think that An exercise ball is the best answer
lbvjy [14]3 years ago
6 0
A sphere??????????
i think thats the answer

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A steady flow of electrical charge is called:
Pavel [41]
A flow of electrical charge from one place to another
is called an electric current. It doesn't need to be steady.
7 0
3 years ago
Read 2 more answers
what is the total distance traveled by a bike rider who rides for three hours at 40 km/hr and then two more hours at 50 km/hr?
marta [7]

Answer:

220 km

Explanation:

3 hours at 40 km/hr

40 km = 1 hour

40 km times 3 = 120 km

2 hours at 50 km/hr

50 km = 1 hour

50 times 2 = 100 km

Total distance

120 km + 100 km = 220 km

4 0
3 years ago
A rocket is sitting on the launch pad. The engines ignite, and the rocket begins to rise straight upward, picking up speed as it
grandymaker [24]

Answer:

e. Only the rocket's motion from the top of its flight path until just before landing is free-fall.

Explanation:

A free-fall  is a fall just under force of gravity. The rocket;s upward motion is result of engine push - even if it was shut down  - and rocket free of engine push effect when it reaches it's maximum height after shutting down of engine. Then rockets stops at it's maximum height for a moment and rtuens back as free fall with only force of gravitation pulling it back to ground with acceleration 'g'.

4 0
3 years ago
what is the maximum force a hammer can apply to a steel nail 2.5 mm in diameter of the nails elastic limit is not to be exceeded
natita [175]

Yield strength of mild steel is given as

Y = 250 MPa

here we know that

Y = \frac{F}{A}

250 * 10^6 = \frac{F}{\pi r^2}

now we can rearrange it as

F = \pi r^2 * 250* 10^6

here we know that

r = 1.25 mm = 1.25 * 10^{-3} m

F = \pi*(1.25*10^{-3})^2* 250* 10^6

F = 1.23 * 10^3 N

so maximum applied force will be F = 1.23 * 10^3 N

7 0
4 years ago
The distribution of total body protein in healthy adult men is approximately Normal, with mean 12.3 kg and standard deviation 0.
Sophie [7]

Answer:

P(12.25\leq x \leq 12.35 ) = 0.9876

Explanation:

given,

mean (μ) = 12.3 Kg

standard deviation (σ ) = 0.1

random sample = 25

probability between 12.25 and 12.35 kg

P(12.25\leq x \leq 12.35 ) = P(\dfrac{12.35-12.3}{\dfrac{0.1}{\sqrt{n}}}\leq z)- P(\dfrac{12.25-12.3}{\dfrac{0.1}{\sqrt{n}}}\leq z)

P(12.25\leq x \leq 12.35 ) = P(\dfrac{12.35-12.3}{\dfrac{0.1}{\sqrt{25}}}\leq z)- P(\dfrac{12.25-12.3}{\dfrac{0.1}{\sqrt{25}}}\leq z)

P(12.25\leq x \leq 12.35 ) = P(\dfrac{12.35-12.3}{\dfrac{0.1}{5}}\leq z)- P(\dfrac{12.25-12.3}{\dfrac{0.1}{5}}\leq z)

P(12.25\leq x \leq 12.35 ) = P(\dfrac{5 (12.35-12.3)}{0.1}\leq z)- P(\dfrac{5(12.25-12.3)}{0.1}\leq z)

P(12.25\leq x \leq 12.35 ) = P(\dfrac{2.5\leq z)- P(-2.5\leq z)

using z-table

P(12.25\leq x \leq 12.35 ) = 0.9938 - 0.0062

P(12.25\leq x \leq 12.35 ) = 0.9876

4 0
3 years ago
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