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3 years ago

If you travel 450 meters in 40 seconds, what is your average speed in meters per

Physics

2 answers:

Vedmedyk [2.9K]3 years ago

8 0

Answer:

The answer is a 11.25m/s

cupoosta [38]3 years ago

7 0

The answer should be A. 11.25

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Nuclear fusion is the combining of atomic nuclei to produce energy and

GenaCL600 [577]

Answer:

D) Radiation

Explanation:

Nuclear fusion is the combining of atomic nuclei to produce energy and radiation.

5 0

3 years ago

A 1.5kw vacuum cleaner is used for half an hour. Calculate its energy usage.

juin [17]

Answer:

its energy usage is 0.05

Explanation:

1.5kw/30=0.05

8 0

3 years ago

What is the relationship between power and voltage?

kipiarov [429]

<u>Answer:</u>

The power and voltage are related through Power Rule .

<u> Explanation : </u>

Power Rule states that the current I that flows the element in the circuit with a loss in voltage V, then the amount of power dissipated by that element in the circuit is the multiplicative product of voltage and the current.

Mathematically, power law is

$\boldsymbol{P}=\boldsymbol{I} \times \boldsymbol{V}$

The rate of work done or the rate of energy consumption or production is termed as power.Unit of power is denoted as W(watts).

Potential energy between any two points on a circuit is called as Voltage and is measured in volts (V) .

3 0

3 years ago

We can model the motion of a bumblebee's wing as simple harmonic motion. A bee beats its wings 250 times per second, and the win

zlopas [31]

Answer:

The amplitude of the wing tip's motion is 1.6 mm.

Explanation:

Given that,

Beat = 250 /s

Speed = 2.5 m/s

We need to calculate the amplitude of the wing tip's motion

Using the equation for the maximum velocity

$v_{max}=2\pi f A$

$A=\dfrac{v}{2\pi f}$

Where,

v = speed

f = frequency

A = amplitude

Put the value into the formula

$A=\dfrac{2.5}{2\pi\times250}$

$A=0.00159 = 1.59\times10^{-3}\ m$

$A=1.6\ mm$

Hence, The amplitude of the wing tip's motion is 1.6 mm.

3 0

4 years ago

Read 2 more answers

How would you go about measuring the speed of a vehicle? What measurements would you have to take? What calculations would you h

White raven [17]

Answer:

For a body moving at a uniform velocity you can calculate the speed by dividing the distance traveled by the amount of time it took, for example one mile in 1/2 hour would give you 2 miles per hour. If the velocity is non-uniform all you can say is what the average speed is.

3 0

3 years ago