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lesantik [10]
3 years ago
14

From because when held inhands stmah 3.in an experiment to determine the density of Sand using a density bottle, the following m

easurements were recorded: Mass of empty of density bottle=43.2g Mass of density bottle full of water=66.4g Mass of density bottle with some sand =67.5g Mass of density bottle with sand, filled up with water=82.3g Use the above data to determine the: a) mass of the water that filled the bottle 1mks b) Volume of the water that filled the bottle. 2mk c) Volume of the density bottle Imk. d) Mass of sandlmk e) Mass of water that filled the space above the sand lmk • • • f) Volume of the sand 3mk Density of the sand​

Physics
1 answer:
BARSIC [14]3 years ago
4 0

What argument does Minow make in his speech?

A. Parents should demand better programs for their children to watch in the evenings.

B. People watch too much television, which leads to boredom and violence.

C. Television executives have a responsibility to provide better programming.

D. The nation's children depend on television to entertain and educate them.

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What happens to the wavelength as the frequency of a whale noise changes from 200hz to 300hz
rewona [7]

Answer:

When there is an increase in the frequency of sound waves, the wavelength decreases.

Explanation:

Given data,

The frequency of the whale changes from 200 Hz to 300 Hz

The formula for frequency and wavelength is,

                             λ = v/f

Where v is the velocity of the sound waves in water (1531 m/s)

The wavelength at 200 Hz is,

                             λ = 1531/200

                                = 7.655 m

The wavelength at 300 Hz is,

                             λ = 1531/300

                                = 5.1 m

Hence, when there is an increase in the frequency of sound waves, the wavelength decreases.

4 0
3 years ago
A satellite is orbiting Earth in an approximately circular path. It completes one revolution each day (86,400 seconds). Its orbi
Vaselesa [24]

Circular path ... circumference = 2π · Radius

Radius = distance from the Earth's center = 22,500 km

Circumference = 2π · 22,500 km = 141,372 km

Speed = (distance to be covered) / (time to cover the distance)

Speed = (141,372 km) / (86,400 seconds)

Speed = (141,372/86,400) (km/sec)

<em>Speed = 1.64 km/sec</em>


<em>Extra Info:</em>

This problem is a nice exercise in Arithmetic, but you shouldn't take any of it to run with in the real world.

A satellite with a period of 1 day is NOT  22,500 km from the center of the Earth.  It's more like 22,500 <u>MILES </u>from the Earth's <u>SURFACE. </u>

The real number is 22,236 miles above sea level, and 26,199 miles (42,164 km) from the center of the Earth.

To do <u>THAT</u> orbit in 86,400 seconds, the satellite has to zip around at <em>3.07 km/sec</em>.

8 0
3 years ago
A person pushes a 25kg box across a horizontal frictionless surface with a force of 200 Newtons.
inna [77]
Second law of physics. F = MA
200 = 25A
I believe you are capable of doing the rest
6 0
3 years ago
Current and Resistivity Concepts1.Electric charge is conserved. As a consequence, when current arrives at a junction of wires, t
zmey [24]

Answer:

1. A). Scalar

2.C) remains de same

Explanation:

5 0
3 years ago
What is the equilibrium line of a glacier?
drek231 [11]
The equilibrium line<span> separates the ablation zone and the accumulation zone; it is the altitude where the amount of new snow gained by accumulation is equal to the amount of ice lost through ablation. The upper part of a </span>glacier<span>, where accumulation exceeds ablation, is called the accumulation zone.</span>
8 0
4 years ago
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