Does gravity exist between a pencil on a coffee mug

Answers

Answer 1

Answer:

Answer:

Yes it does

Explanation:

Gravity is pushing down on the pencil but the coffee mug is also pushing the pencil up with the same amount of force so they both don't move

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In a machine shop, a hydraulic lift is used to raise heavy equipment for repairs. The system has a small piston with a cross-sectional area of 0.075 m2 and a large piston with a cross-sectional area of 0.237 m2 . An engine weighing 3400 N rests on the large piston. What force must be applied to the small piston in order to lift the engine? Answer in units of N.

Answers

Answer:

$F_s=1075.9493\ N$

Explanation:

Given:

area of piston on the smaller side of hydraulic lift, $a_s=0.075\ m^2$

area of piston on the larger side of hydraulic lift, $a_l=0.237\ m^2$

Weight of the engine on the larger side, $W_l=3400\ N$

Now, using Pascal's law which state that the pressure change in at any point in a confined continuum of an incompressible fluid is transmitted throughout the fluid at its each point.

$P_s=P_l$

$(F_s)/(a_s)=(W_l)/(a_l)$

$(F_s)/(0.075) =(3400)/(0.237)$

$F_s=1075.9493\ N$ is the required effort force.

Answer:

F = 1076 N

Explanation:

given,

small piston area, a = 0.075 m²

large piston area, A = 0.237 m²

weight on the large piston, W = 3400 N

force applied on the second piston, F = ?

using pascal law for the force calculation

$(F)/(W)=(a)/(A)$

$(F)/(3400)=(0.075)/(0.237)$

F = 0.3165 x 3400

F = 1076 N

The force applied to the small piston in order to lift the engine is equal to 1076 N.

How do I calculate the equivalent resistance?

Answers

you need to specify between which nodes.

Rab = R1+R5+R3 ; R2,R4 are ignored because CD is opened curcuit.

Rbd = R3 + R4

anyway, the cuircuit seems incomplete

Sęòhs hadoí jdaló, 2jò

An ionic bond form when atoms

Answers

between two ions of opposite charges. In ionic bonding, electrons transfer from one atom to another.

A cheetah runs with a positive acceleration. What does this tell you about the velocity time graph for the cheetah?A. Graph negative slope
B. graph positive slope
C. Graph positive area
D. Graph negative area

Answers

B is the correct answer

Answer:

B. graph positive slope

Explanation:

got it right

Scientific ____ are the best explanations so far to explain a pattern seen in nature.

Answers

Ah hah ! That's what 'theories' are.

How does increasing the tension of a spring affect a wave on the spring?

Answers

Increasing the tension of a spring affects a wave on the spring because it increases the frequency. When the tension rises, so does the frequency.

Answer: Increases the frequency of the wave

Explanation:

Increasing the tension of a spring means increasing its stiffness. The wave produced thereafter has greater frequency.

Higher tension causes the spring to have greater restoring force causing it to quickly come back to its equilibrium position. Thus, the speed of the wave also increases.

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