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Diano4ka-milaya [45]
3 years ago
15

1. Sally rides her bike to school which is 8.0 km from her house. If it takes 15 minutes for her

Physics
1 answer:
miv72 [106K]3 years ago
4 0
The answer could be 1.875?
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What is the effect on the force of gravity between two objects if the mass of one object remains unchanged while the distance to
Vadim26 [7]

Answer:

The correct answer to the question is

B. It always decreases

Explanation:

To solve the question, we note that the foce of gravity is given by

F_G=\frac{Gm_1m_2}{r^2} where

G= Gravitational constant

m₁ = mass of first object

m₂ = mass of second object

r = the distance between both objects

If the mass of one object remains unchanged while the distance to the second object and the second object’s mass are both doubled, we have

F_{G2} =\frac{Gm_1(2m_2)}{(2r)^2} = \frac{2}{4} \frac{Gm_1m_2}{r^2}

Therefore the gravitational force is halved. That is it will always decrease

4 0
3 years ago
There are several events listed below some of the events are related to tectonic plates activity mark each that is associated wi
iVinArrow [24]
A because an earthquake is shaking of tectonic plates
5 0
3 years ago
Which statement describes the redox reaction involved in photosynthesis?
NeTakaya

Answer:

D. O2 is removed from the atmosphere, and CO2 is released

Explanation:

Hope it helps you

3 0
3 years ago
Read 2 more answers
A ball is thrown vertically upward from the top of a building 112 feet tall with an initial velocity of 96 feet per second. The
nordsb [41]

Answer:

t=6.96s

Explanation:

From this exercise, our knowable variables are <u>hight and initial velocity </u>

v_{oy}=96ft/s

y_{o}=112ft

To find how much time does the <u>ball strike the ground</u>, we need to know that the final position of the ball is y=0ft

y=y_{o}+v_{oy}t+\frac{1}{2}gt^{2}

0=112ft+(96ft/s)t-\frac{1}{2}(32.2ft/s^{2})t^{2}

Solving for t using quadratic formula

t=\frac{-b±\sqrt{b^{2}-4ac } }{2a}

a=-\frac{1}{2} (32.2)\\b=96\\c=112

t=-0.999s or t=6.96s

<u><em>Since time can't be negative the answer is t=6.96s</em></u>

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3 years ago
How can being scientifically literate help you in your own life?
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Answer: You can betterly understand what's around you and how it works

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2 years ago
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