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4 years ago

The table below shows the acceleration of gravity on different bodies in the solar system.

Physics

2 answers:

erastova [34]4 years ago

6 0

It is Pluto !! The PE is mgh !!

As mass is constant everywhere and height is given 1 m thus the value of g determines the PE !!

So g is least on Pluto thus the PE will be least !!

levacccp [35]4 years ago

4 0

Do you remember the formula for potential energy ?

PE = (mass) (gravity) (height)

If the mass and the height are always the same, then the least PE comes from the least gravity. Surely you can find THAT in the table.

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The sticky substances in cigarettes that coat the lining of the<br> lungs are _____.

Svetach [21]

Answer:

Tar

Explanation: Tar is a big ingredient in cigarettes and can cause the sticky substance

5 0

3 years ago

Read 2 more answers

A circular wire loop of radius 14.1 cm carries a current of 2.34 A. It is placed so that the normal to its plane makes an angle

Tomtit [17]

Answer:

(a) $0.1460Am^2$

(b) 1.3927 Nm

Explanation:

We have given that radius $r=14.1cm=0.141m$

Current i = 2.34 A

Angle $\Theta =49.2^{\circ}$

Uniform magnetic field B = 12.6 T

Area is given by $A=\pi r^2=3.14\times 0.141^2=0.0624m^2$

(A) We know that magnetic dipole moment is given by $M=iA$ , here i is current and A is area

So magnetic moment $M=iA=2.34\times 0.0624=0.1460Am^2$

(b) We know that torque is given by

$\tau =BIAsin\Theta$

So torque experienced by coil will be $\tau =BIAsin\Theta =12.6\times 2.34\times 0.0624\times sin49.2^{\circ}=1.3927Nm$

7 0

4 years ago

Water flowing through a pipe suddenly comes to a section of pipe where the pipe diameter decreases to 86% of its previous value.

lord [1]

In all the sections of the pipe, volumetric flow rate is the same. Therefore,
Q1 = Q2

Q = VA, V = velocity, A = Cross-sectional area.

Then,
V1A1 = V2A2

But,
A = πD^2/4
Then,
V1·πD1^2/4 = V2·πD2^2/4
V1·D1^2 = V2·D2^2

But
D2/D1 = 86% = 0.86, or D1/D2 = 1/0.86
Therefore,
V2 = (V1D1^2)/D2^2 = V1·(D1/D2)^2 = 66*(1/0.86)^2 = 89.24 m/s

The speed in the smaller section is 89.24 m/s.

4 0

3 years ago

What would the time on the lower clock read if the frequency of the wave were 0.1 Hz

alina1380 [7]

Answer: 10 s

Explanation:

f=0.1Hz

T=1/f

T=1/0.1Hz

T=10s

7 0

3 years ago

Use the DC Construction kit to build a simple circuit to perform the following task:

PilotLPTM [1.2K]

Answer:

The resistance is 8.7 ohm.

Explanation:

Voltage, V = 110 V

mass, m = 1 kg

change in temperature, T = 100 - 20 = 80 C

time, t = 4 min = 4 x 60 = 240 s

specific heat, c = 4184 J/kg C

let the resistance is R.

The heat generated by the heater is used to the heat the water.

$\frac{V^2}{R} t = m c T \\\\\frac{110^2}{R}\times 240 = 1\times 4184\times 80\\\\R = 8.7 ohm$

3 0

3 years ago