3 years ago

Part A

Physics

2 answers:

inn [45]3 years ago

8 0

Answer:

It would be electrical energy to kinetic energy

Explanation: because of the motion that fan has now.

garri49 [273]3 years ago

5 0

Answer:

Electric potential energy in the battery transforms to electric energy. Electric energy transforms to motion energy (spinning fan blades), sound energy (noise), and thermal energy (a warm motor).

Explanation:

You might be interested in

An average person can reach a maximum height of about 65 cm when jumping straight up from a crouched position. During the jump i

Yakvenalex [24]

Answer:

a. Initial speed is zero from a crouching position...

b... Mass of body * 9.8

Explanation:

4 0

3 years ago

Listening to your stereo system while driving can be dangerous because:

kotegsom [21]

Hey there!

They answer is option C music would make it harder to focus on the road.

Hope this helps.

6 0

3 years ago

Read 2 more answers

If |v|= 11, |w|= 23, |v-w|= 30, find |v+w|

GenaCL600 [577]

Answer:

$|v+w|=20$

Explanation:

We are given that

|v|=11

|w|=23

|v-w|=30

We have to find the value of |v+w|

|a-b|^2=(a+b)\cdot (a+b)=a^2+b^2-2|a||b|cos\theta

Using the formula

$(30)^2=(11)^2+(23)^2-2(11)(23)cos\theta$

$900=121+529-506cos\theta$

$900-121-529=-506cos\theta$

$250=-506cos\theta$

$cos\theta=-\frac{250}{506}$

$|a+b|^2=|a|^2+|b|^2+2a\cdot bcos\theta$

Using the formula

$|v+w|^2=(11)^2+(23)^2+2(11)(23)\times (-\frac{250}{506})$

$|v+w|^2=400$

$|v+w|^2=(20)^2$

$|v+w|=20$

7 0

3 years ago

A 5.0 V battery storing 43.0 kJ of energy supplies 1.5 A of current to a circuit. How much energy does the battery have left aft

Free_Kalibri [48]

Answer:

B. 16 kJ

Explanation:

Energy = VIt.............. Equation 1

Where V = Voltage, I = Current, t = time

Given: V = 5.0 V, I = 1.5 A, t = 1 h = 3600 s.

Substitute these values into equation 2

E = 5.0(1.5)(3600)

E = 27000 J

E = 27 kJ.

Amount of energy left = 43 kJ - 27 kJ

Amount of energy left = 16 kJ.

Hence the right option is B. 16 kJ

3 0

3 years ago

A TV with a power rating of 267 W uses 1.9 kWh in one day. How many hours was the TV during that day?

Aleonysh [2.5K]

1.9kWh/0.267kW = 7.11 hours

4 0

4 years ago