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Sholpan [36]
3 years ago
14

Which statements best describe measuring with a graduated cylinder? all that apply.

Physics
2 answers:
melisa1 [442]3 years ago
8 0
My best guess would be C
Maksim231197 [3]3 years ago
8 0

Answer:

a,c,e and f

Explanation:

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A 78−kg skier is sliding down a ski slope at a constant velocity. The slope makes an angle of 21° above the horizontal direction
Feliz [49]

Answer:

274N 0.41

Explanation:

As he is sliding down in a constant speed then the force that accelerates him (weight) and the force that slows his down (friction) are equal.

then

<em>friction=mass x gravity x sin(21)</em>

Fr=78kg x 9.8m/s2 x sin(21)=274N

<em>friction= coefficient of kinetic friction x normal force of from the slope</em>

Fr= u x 78kg x 9.8m/s2 x cos(21)=274N

Fr= u x 78kg x 9.8m/s2 x cos(21)=274Nu=274/677=0.41

8 0
3 years ago
A lever has an effort arm that is 8 meters long and the resistance arm that is 1.5 meters long, how much effort is needed to lif
ruslelena [56]
We are given with two measurements of the arm and an input weight. To answer this problem,we need to balance the forces and use the lengths of the arms. 
209 N * 8 m = x * 1.5 m
x = 1114.67 N

it takes 1114.67 N to lift the input weight
6 0
3 years ago
Read 2 more answers
Is an aquarium a system ?
sweet [91]

No

Explanation:Brooo it does not contribute to the eco system

6 0
2 years ago
Please help... <br>What forms of energy are present in lighting a table lamp?​
prohojiy [21]

Answer:

Electrical energy, Heat energy and Light energy.

Explanation:

Lighting a table lamp requires electricity and after being light up, light energy is produced and you will feel heat around it.

6 0
3 years ago
Read 2 more answers
What is the gravitational energy of a 2.63kg
Elis [28]

Answer:

G.P.E = 368.3

Explanation:

Given the following data;

Mass = 2.63kg

Height, h = 14.29m

We know that acceleration due to gravity is equal to 9.8m/s²

To find the gravitational potential energy;

Gravitational potential energy (GPE) is an energy possessed by an object or body due to its position above the earth.

Mathematically, gravitational potential energy is given by the formula;

G.P.E = mgh

Where;

G.P.E represents potential energy measured in Joules.

m represents the mass of an object.

g represents acceleration due to gravity measured in meters per seconds square.

h represents the height measured in meters.

G.P.E = 2.63*9.8*14.29

G.P.E = 368.3

Note: the unit of gravitational potential energy is Joules.

3 0
3 years ago
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