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4 years ago

Tides occur in ocean but not in lakes.why?

Physics

1 answer:

Sholpan [36]4 years ago

8 0

Answer:

The Tides are caused by the gravitational pull of the moon and the sun .... Tides do occur in lakes they just aren't noticible.

Explanation:

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3 years ago

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Some radar systems detect the size and shape of objects such as aircraft and geological terrain. What is the frequency of such a

vova2212 [387]

Answer:

$f=1.57\times 10^9\ Hz$

Explanation:

Given that,

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We know that,

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3 years ago

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3 years ago

What is meant by cathode rays?<br>what is radio activity and state three of it's effects?<br>

stealth61 [152]

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3 years ago

A crane lifts up two boxes.<br><br> Which free body diagram shows the forces acting on block A?

Temka [501]

Answer:

The 3rd graph

Explanation:

A free body diagram is a diagram which shows all the forces acting on an object.

The problem asks us to find the free body diagram of block A, so we must find all the forces acting on block A.

We have 3 forces acting on block A in total:

- The force of gravity (its weight), which pushes the block downward (in the diagram, it is the force represented with $F_{gA}$

- The tension in the rope 1, which pulls block A upwards: this force is represented with $F_{T1}$

- The tension in the rope 2, due to the weight of block 2, which pulls block A downwards: this force is represented with $F_{T2}$

Based on the direction of these 3 forces, the correct diagram is the 3rd one.

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3 years ago

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Tides occur in ocean but not in lakes.why?​

Tides occur in ocean but not in lakes.why?