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2 years ago

By any method you choose, determine your average speed of walking. How do you results compare with those of your classmates?

Physics

2 answers:

mamaluj [8]2 years ago

8 0

Counting the average between u and the classmates

riadik2000 [5.3K]2 years ago

7 0

joji sanctuary

slow dancing in the dark

happier by olivia

filipino artist like john cena

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A crate slides off the back of a flatbed truck that accelerated forward from rest. If the bed of the truck is frictionless, the

jolli1 [7]

The right answer should be B

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2 years ago

Fill in blank without a word bank (unit is wave nature of light) 1. As water waves travels through a slit barrier, they bend and

scoray [572]

1 diffraction
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3 years ago

You have designed a machine that requires 1000 J of work from a motor for every 800 J of useful work done by the machine. What i

valentinak56 [21]

Answer:

80%

Explanation:

$efficiency = \frac{useful \: work \: done}{total \: energy \: input}$

800 / 1000 = 0.8

Efficiency = 0.8 *100 = 80%

4 0

1 year ago

A ship's propeller of diameter 3 m makes 10.6 revolutions in 30s. What is the angular velocity of the propeller?

ycow [4]

Answer:

The angular velocity of the propeller is 2.22 rad/s.

Explanation:

The angular velocity (ω) of the propeller is:

$\omega = \frac{\Delta \theta}{\Delta t}$

Where:

θ: is the angular displacement = 10.6 revolutions

t: is the time = 30 s

$\omega = \frac{\Delta \theta}{\Delta t} = \frac{10.6 rev*\frac{2\pi rad}{1 rev}}{30 s} = 2.22 rad/s$

Therefore, the angular velocity of the propeller is 2.22 rad/s.

I hope it helps you!

5 0

2 years ago

What is the difference between a circuit and a current?

dimulka [17.4K]

Answer:

a circuit is a complete loop that carries a current in the form of electrons from negative to positive

Explanation:

The difference between current and circuit is that a circuit is a complete loop that carries a current in the form of electrons from negative to positive .

In a circuit, there are difference elements or components such as the battery, wire, resistor. The goal of a circuit arrangement is to completely carry current from one end to another.

The current is the quantity of charge that flows within the circuit per unit of time.

So, the battery supplies the electromotive force to move the current round the circuit.

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2 years ago