What two factors determine the streghth of the force of gravity between tow object?

Answers

Answer 1

Answer:
1). the product of the masses of the two bodies

2). the distance between their centers of mass

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A whale comes to the surface to breathe and then dives at an angle of 20.0 ∘ below the horizontal. If the whale continues in a straight line for 200 m , how deep is it?
The age of the universe is thought to be about 14 billion years. Assuming two significant figures, write this in powers of ten in years
A hollow lens is made of thin glass and in the shape of a double concave lens. It can be filled with air, water of refractive index 1.33 or CS2 of refractive index 1.6. It will act as a diverging lens if it is (A) filled with air and immersed in water. (B) filled with water and immersed in CS2. (C) filled with air and immersed in CS2. (D) filled with CS2 and immersed in water.
What change takes place in a wave when the frequency of the wave increases? A.fewer wavelengths pass a given point per second B.no change occurs in the number of wavelengths that pass a given point per second C.a greater number of wavelengths pass a given point per second D.the number of wavelengths that pass a given point per second doubles

If it takes 50n of force to lift a 450n what is the ma of the machine

Answers

If the machine is 100% efficient, then its
Mechanical Advantage is (450/50) = 9 .

If the machine is less than 100% efficient,
then the MA is more than 9 .

Your car is traveling at 70/mi/h (1000ft/s) your sneeze and your eyes close for 0.33 seconds how far did you travel during your sneeze?

Answers

If you're moving at 70 mi/hr, then you cover 33.88 feet in 0.33 sec. If you're moving at 1,000 ft/sec, then you cover 33 feet in 0.33 sec. 70 mph and 1,000 fps are not equivalent. 1,000 fps is about 682 mph, whereas 70 mph is about 103 fps.

Suppose you had a feather, an orange, and a watermelon. Which of the following describes how quickly each of the objects will fall without air resistance, relative to the other two?a. All three objects will fall at the same rate.
b. The watermelon will fall faster than the other two.
c. The orange will fall the fastest, followed by the watermelon and then the feather.
d. The feather will fall faster than the orange, which will fall faster than the watermelon.

Answers

WITHOUT air resistance . . . like on the moon, or in a tank with all
the air removed from it . . . a feather, an orange, and a watermelon
will all fall at the same rate.

So will a piece of tissue, a mosquito, school bus, a rock, and a cruise
ship.

If you drop them all at the same time, then they will all hit the ground
at the same time.

4. Which problem is most likely to result from the use of nuclear power?O A. storage of radioactive wastes
B. miners getting trapped underground
C. oil spills that pollute oceans and beaches
O D. pollutants in the groundwater after drilling

Answers

Answer:

i think it is A

Explanation

The basic building block of life is

Answers

The basic building block of life is molecules, more specifically macromolecules. There are four different macromolecules which could all be described as the building blocks of life, namely carbohydrates, proteins, nucleic acids and proteins.

A(n) is a material that causes a wave to bounce off of it

Answers

Answer;

A barrier, a surface or a boundary

Explanation;

Reflection is the property waves that occurs due to the bouncing back of a wave after it strikes a barrier.

Reflection involves change in direction of a wavefront at an interface between two different media such that the wavefront returns into the medium from which it originated. In other words, the direction of the wave changes when they bounce of a barrier or a surface.

Its a Reflector

Reflector is some sort of material that is used to collect or bounce off energy such as sound, light, or radio wave

Usually it took form in some sort of parabolic that revolve around an axis

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