2 years ago

????????????????what’s the answer

Physics

1 answer:

kompoz [17]2 years ago

6 0

Answer:

I don't know what do u. mean

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HELP PLZ

Anon25 [30]

Answer:

A = 11.77 m/s²

Explanation:

Mass of box (m) = 66kg

Force (f) = 777n

Acceleration (a) = ??

F = ma

777 = 66 · a

A = $\frac{777}{66}$ = 11.77m/s²

5 0

2 years ago

Read 2 more answers

A student jumps straight up from a diving board that is 3.1 m above the water and hits the water 2.4 seconds later. With what ve

amm1812

Answer:

10. m/s

Explanation:

Given:

y₀ = 3.1 m

y = 0 m

a = -9.8 m/s²

t = 2.4 s

Find: v₀

y = y₀ + v₀ t + ½ at²

0 m = 3.1 m + v₀ (2.4 s) + ½ (-9.8 m/s²) (2.4 s)²

v₀ = 10.47 m/s

Rounded to two significant figures, the student's initial velocity was 10. m/s.

7 0

3 years ago

Why might be people be causing global warming?

amid [387]

Pollution?
:):):):):):)

8 0

3 years ago

Part complete a machinist turns the power on to a grinding wheel, which is at rest at time t = 0.00 s. the wheel accelerates uni

nirvana33 [79]

As we know from the equation of kinematics

$w = w_0 + \alpha * t$

here it starts from rest

final angular speed will become 90 rad/s in time interval of t = 10 s

now we will have

$0 = 90 + (-1.8)* t$

$t = 50 seconds$

So it will stop after 50 seconds of constant deceleration.

7 0

3 years ago

What standard of measurement do most countries use and discuss why such a standard is beneficial

frosja888 [35]

I mean i guess its the metric system?

6 0

3 years ago