Ask question

Ask question

All categories

3 years ago

6

What's going to happen in 3 weeks ?

2 answers:

Nana76 [90]3 years ago

7 0

<u><em>Answer:</em></u>

<u><em>god knows.</em></u>

Explanation:

Drupady [299]3 years ago

6 0

Answer:

Since this is under Physics, the earth would have completed 79.07% of it’s revolution around the sun.

Explanation:

A full year = 364.25 days
Today is day 288.

In other words, the progress the earth has made is (288/364.25) x 100 = 76.07%

You might be interested in

You use 35 J of energy to move an object 5 m. What is the weight of the object

Vlad [161]

Explanation:

35 ÷ 5 = 7kg.

=======================

7 0

2 years ago

Which statement about gravitational attraction is correct?

natita [175]

It’s b all objects with mass experience gravitational attraction I hope this helps

3 0

3 years ago

A 0.15 kg baseball is hit by a baseball bat. Right before it is hit, the ball’s speed is 30 m/s, and right after it is hit, the

Roman55 [17]

Answer:

Impulse will be 12 kgm/sec

So option (b) will be correct option

Explanation:

We have given mass of the baseball m = 0.15 kg

Ball speed before hit $v_1=30m/sec$

Ball speed after hitting $v_2=-50m/sec$ ( negative direction due to opposite direction )

We have to find the impulse

We know that impulse is equal; to the change in momentum

So change in momentum = $m(v_1-v_2)=0.15(30-(-50))=0.15\times 80=12kgm/sec$

So option (b) will be correct option

5 0

2 years ago

two horses are pulling a 325 kg wagon, initially at rest. The horses exert 250 N and 178 N forward forces, respectively. Ignorin

Dovator [93]

Answer:

AFter 3.5 s, the wagon is moving at: $4.62\,\,\frac{m}{s}$

Explanation:

Let's start by finding first the net force on the wagon, and from there the wagon's acceleration (using Newton's 2nd Law):

Net force = 250 N + 178 N = 428 N

Therefore, the acceleration from Newton's 2nd Law is:

$F=m\,*\,a\\a = \frac{F}{m} \\a= \frac{428}{325}\, \frac{m}{s^2} \\a\approx 1.32 \,\,\frac{m}{s^2}$

So now we apply this acceleration to the kinematic expression for velocity in an object moving under constant acceleration:

$v_f=v_i+a\,*\,t\\v_f=0+1.32\,*\,3.5\,\,\frac{m}{s} \\v_f=4.62\,\,\frac{m}{s}$

7 0

3 years ago

5. Кульки із сталі, чавуну, міді і латуні мають однакові розміри. Яка з них має

Oksanka [162]

Answer:

Sorry, I don't understand this language, sorry dear

4 0

2 years ago