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Ne4ueva [31]
3 years ago
5

Plz answer number one and two

Physics
1 answer:
Julli [10]3 years ago
6 0
Steam and stain on the clothing
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A lamp uses a 230 V mains supply and transfers 96 J of energy every second. Work out the current through the lamp. Give your ans
sertanlavr [38]

Answer:

0.4 A

Explanation:

From the question,

Electric power = Voltage×current

P = VI.......................... Equation 1

Make I the subject of the equation

I = P/V..................... Equation 2

Given: P = 96 J/s, V = 230 V.

Substitute into equation 2

I = 96/230

I = 0.4 A.

Hence the current is 0.4 A

8 0
4 years ago
Turn friction on, and get the object accelerating with an applied force. Then, take the applied force away. Is there any acceler
patriot [66]

Answer:

there can be acceleration

Explanation:

because of the friction. If the friction and applied force is nowhere then it will not move, but if it has a friction it will move but not in the same direction it can only move slightly or really move. based on me only

7 0
3 years ago
Help on springs,I klai
ra1l [238]
K = ∆F / ∆s = 4N / 0.08m = 50N/m
3 0
3 years ago
What is the angular position in radians of the minute hand of a clock at 2:55?
OleMash [197]
Refer to the diagram shown.

There are twelve 5-minute divisions.
Each 5-minute division is equal to 360°/12 = 30°.

By convention, angles are measured counterclockwise from the positive x-axis.
The angular position of the minute hand at 2:55 is
θ = 90° + 30° = 120°

Because 360° = 2π radians, therefore
θ = (120/360)*2π = (2π)/3 radians  = 2.0944 radians

Answer: (2π)/3 radians ofr 2.0944 radians.

8 0
3 years ago
Read 2 more answers
A gas sample is heated from -20.0°C to 57.0°C and the volume is increased from 2.00 L to 4.50 L. If the initial pressure is 0.14
Svetach [21]

Answer:

The answer is e.

Explanation:

We take:

T_{1}=253K

V_{1}=2.00 l

P_{1}=0.14atm

V_{2}=4.50 l

T_{2}=330K

Taking the gas as an ideal gas, we can use the ideal gas law:

\frac{PV}{nRT}

⇒ n=\frac{P_{1}V_{1}}{RT_{1}} ⇒ n=0.013mol

Then:

P_{2}=\frac{nRT_{2}}{V_{2}} ⇒ P_{2}=0.0811 atm

Taking R=0.08205atmL/molK.

5 0
3 years ago
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