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3 years ago

I need some help help

Physics

2 answers:

Alexxx [7]3 years ago

7 0

Your answer is B for this question

Semmy [17]3 years ago

4 0

I believe it’s B but I suggest u chec

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What two areas of your body (related to the skeletal system) would be impacted by prolonged periods of sitting and typing

Naddik [55]

Answer: Weak Legs and Glutes

Explanation: Cause ur legs go brrrrrr

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3 years ago

What is the best definition Copernicus

cupoosta [38]

Answer:

(This can be a way to think about it) Nicholas Mikolaj Kopernik,1473–1543 Polish astronomer who declared the now accepted theory that the Earth and the other planets move around the Sun aka the Copernican System.

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3 years ago

Read 2 more answers

Hi :) I don’t really understand why it’s A

Troyanec [42]

Answer:

Explanation:

1. When the block moves across a table top, F(pulling) = - F(frictional).

Sum of this forces = 0, so the block moves with uniform speed.

2. When the block is pulled on top of the table covered with beads

F(pulling) > - F(frictional).

So, the sum of forces (∑F) is a number that is more than 0 and directed to the direction of movement.

So, a = ∑F / m is positive and constant. Speed is increasing because

v(t) = v(0)+at

a is constant and directed forward.

That means a is acceleration, and constant.

6 0

4 years ago

A man standing on a bus remains still when the bus is at rest. When the bus moves forward and then slows down the man continues

vovikov84 [41]

When the bus starts moving forward, the man remains at rest,
causing him to lean back.

When the bus slows down, the man continues to move forward,
and appears to lean forward.

Both events are examples of the effect of inertia.

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4 years ago

A train travels 70 kilometers in 1 hours, and then 63 kilometers in 2 hours. What is its average speed?

lozanna [386]

The answer is: " 44 $\frac{1}{3}$ km " ;
or; write as: " 44.333 km " .
___________________________________________________________
Explanation:
___________________________________________________________
(70 km + 63 km) ÷ (2 + 1 ) = 133 km ÷ 3 = " 44 $\frac{1}{3}$ km " ;
or; write as: " 44.333 km " .
___________________________________________________________

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4 years ago