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Readme [11.4K]
3 years ago
12

A current of 2 Amps flows through a circuit containing a motor with resistance 12 Ohms. How many Joules of energy is converted i

f the motor runs for one minute?
Physics
1 answer:
Snowcat [4.5K]3 years ago
7 0

Answer:2880 joules

Explanation:

Current=2 amps

Resistance=12 ohms

Time=1 minute=60 seconds

Energy=(current)^2 x resistance x time

Energy=2^2 x 12 x 60

Energy=2 x 2 x 12 x 60

Energy=2880

Energy=2880 joules

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If you ran 15 km/hr for 2.5 hours, how much distance would you cover?
SVETLANKA909090 [29]

Answer: 37.5 km

Explanation:

The question is that

If you ran 15 km/hr for 2.5 hours, how much distance would you cover ?

Where

Speed = 15 km/ hr

Time = 2.5 hours

Using the formula for speed.

Speed = distance/time

Substitute speed and time into the formula

15 = distance/ 2.5

Make distance the subject of formula by cross multiplying.

Distance = 15 × 2.5

Distance = 37.5 km.

6 0
3 years ago
The force that one surface exerts on another when the two rub against each other is called
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1. Friction (Example: when you rub your hands together and you start to feel heat.)

2. Attract each other. (Example: Every object has a gravitational pull of some sort. The larger the object, the stronger the gravitational pull. This is why the sun is able to keep all eight planets in orbit around it.)

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3 years ago
A ball whose mass is 1.9 kg is suspended from a spring whose stiffness is 8.0 N/m. The ball oscillates up and down with an ampli
MArishka [77]

Answer:

2.05 radians/s

Explanation:

This is a simple harmonic motion. The angular frequency of a loaded spring is given by

\omega = \sqrt{\dfrac{k}{m}}

where k is the spring constant and m is the mass on the spring.

Using the known values,

\omega = \sqrt{\dfrac{8}{1.9}} = 2.05

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What is the evidence proving that we're in the 6th mass extinction?
Sveta_85 [38]

Answer:

Global warming and climate change

8 0
3 years ago
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ahrayia [7]

The amount of oxygen will be 22.29 gm required to produce 37.15 g co₂.

<h3>What is a chemical reaction?</h3>

One or more compounds, known as reactants, are transformed into one or more distinct substances, known as products. Such a process is known as a chemical reaction.

Given reaction;

\rm C_3h_8 +5O_2 }\rightarrow  3CO_2 +4H_2O

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5x=3y

5x=37.15

x=3×37.15/5

x=22.29 gm

Hence the amount of oxygen will be 22.29 gm

To learn more about the chemical reaction refer to the link;

brainly.com/question/22817140

#SPJ1

3 0
2 years ago
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