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Y_Kistochka [10]
3 years ago
8

Can somebody help me with this quiz please

Physics
1 answer:
mezya [45]3 years ago
4 0
Sure what do u need help with
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In the blanks below write what the independent variable and the dependent variable would be for each experiment. (what are you t
tiny-mole [99]

Answer:

1. independent- if you studied. dependent- test scores

2. independent- behavior of students. dependent-student grades

3. independent- what you eat. dependent- amount of gas

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6. independent- whether you eat breakfast or not. dependent-student performance

7. independent- which animal you test. dependent- speed of the animals

8. independent- how much candy you eat. dependent- cavities or not

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10. independent- which thing you measure. dependent- the measurements

4 0
3 years ago
Why doesnt food have energy
Nataly_w [17]
Food has calories which feeds your bones in your body from eating away your muscles, it doesn’t have “energy” on the other hand pop and drinks do.
3 0
4 years ago
Read 2 more answers
What uniform magnetic field, applied perpendicular to a beam
schepotkina [342]

Answer:

The magnetic field is 2.11\times10^{-5}\ T

Explanation:

Given that,

Speed v=1.30\times10^{6}\ m/s

Radius = 0.350 m

We need to calculate the magnetic field

Using formula of magnetic field

B =\dfrac{mv}{qr}

Where, m = mass of electron

v = speed of electron

q = charge of electron

r = radius

Put the value into the formula

B=\dfrac{9.1\times10^{-31}\times1.30\times10^{6}}{1.6\times10^{-19}\times0.350}

B=2.11\times10^{-5}\ T

Hence, The magnetic field is 2.11\times10^{-5}\ T

5 0
4 years ago
The specific heat of Aluminum is 0.9 J/g K. How much heat is lost as a 100 gram sample of Aluminum is dropped into a beaker of w
otez555 [7]
Energy=mass*SHC*temp change
=100*0.9*75
=6750J
6 0
4 years ago
A motorboat embarks on a trip, heading downstream in a river in which the current flows at a rate of 1.5m/s. After 30.0 minutes,
Natali5045456 [20]

Answer:

t=2413s

Explanation:

From the question we are told that:

Velocity v=1.5m/s

Time t=30min=>30*60=>1800

Distance d=24.3km

Generally the Newton's equation for Speed going down the stream is mathematically given by

 v + u = \frac{d}{t}

 1.5+v=frac{24300}{1800}

 v=12m/s

Therefore

 v + u = \frac{d}{t}

 t=\frac{24300}{12-1.5}

 t=2413s

3 0
3 years ago
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