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jekas [21]
3 years ago
5

A rack of seven spherical bolwing balls (each 7.00 kg, radius of 9.50 cm) is positioned along a line located a distance =0.850 m

from a point ,
Calculate the gravitational force
the bowling balls exert on a ping-pong ball of mass 2.70 g, centered at point .
Physics
1 answer:
lapo4ka [179]3 years ago
4 0

Answer:

8.72*10^{-12} N

Explanation:

force of attraction f = G m1m2/ r^2 = \frac{6.67*10^{-11}*7*5*2.70 }{.85*.85*1000} = 8.72*10^{-12} N

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Importance of international bureau of weights and measures Inthe world​
vaieri [72.5K]

Answer:

The international bureau of weights and measures is an international organization to bring about the unification of different measurement systems to make or establish international standards and prototypes, etc.

If my answer helped, kindly mark me as the Brainliest!!

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4 0
3 years ago
A squirrel on a limb near the top of a tree loses its grip on a nut, so that the nut slips away horizontally at a speed of 1.5m/
tatiyna

Answer:

The height of the squirrel  h =113 \  m

Explanation:

From the question we are told that  

    The horizontally speed is v  = 1.5 m/s

    The horizontal  distance d =  7.2 \ m

Generally the the time taken is mathematically represented

      t = \frac{d}{v}

=>   t = \frac{7.2}{1.5}

=>   t = 4.8 \  s

Generally from kinematic equation we have that

     h =  ut + \frac{1}{2} gt^2

Here u  is the initial velocity of nut in the vertical and the value is 0 m/s

     h =  0 * 4.8  + \frac{1}{2} * 9.8 * (4.8)^2

=>  h =113 \  m

6 0
3 years ago
How to find the value of sin(90+ theta) ?
koban [17]
Sin(90 + θ)

By addition angle formula for sine.

sin90cosθ + cos90sinθ

1*cosθ + 0*sinθ

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sin(90 + θ) = cosθ
6 0
3 years ago
Expain how a hurricane develops
Firlakuza [10]

Answer:

A hurricane starts to form when warm air rises and then that warm air turns into cooler air. After a while of this happening large clouds and thunderstorms    are made. The clouds and thunderstorms keep growing and rotating from earth's Coriolis Effect. Then a hurricane forms.

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A van slows down as it travels up a steep hill. Its speed goes from 20m/s at the bottom of the hill to 12m/s when it reaches the
Paladinen [302]
The van's AVERAGE speed on the way up the hill is

(1/2) (20 + 12) = (1/2) (32) = 16 m/s .

At an average speed of 16 m/s, it travels

(16 m/s) x (8 s) = 128 meters in 8 seconds.
5 0
4 years ago
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