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k0ka [10]
2 years ago
11

How much time does it take for a rattlesnake to strike its victim if it is strikes at a speed of 1.25 m/s and the victim is exac

tly 5 meters away?
Physics
1 answer:
Marianna [84]2 years ago
6 0

Answer:

4 seconds

Explanation:

5/1.25=4

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Which is not expecting acceleration?
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1. Answer: A skydiver whose air resistance is equal to that of her weight.

A skydiver free falls under gravity but her rate of fall slows down due to drag -air resistance. when this air resistance becomes equal to her weight, the two get balanced and the body does not accelerate or decelerates.

2. Answer: Gravity

Contact forces are those which act when there is physical contact between two bodies. For example: normal force, tension and spring force.

Non-contact forces act between two bodies even when they are at a distance apart. For example: gravity, electric force, magnetic force etc.

3. Answer: The tendency of an object's motion to remain the same.

Inertia is a property of matter by virtue of which it tends to remain in its state of motion or rest. It does depend on mass of the object, more the mass, more is inertia. For example, cycle can be easily moved but we need real push hard for a car to move.

4. Answer: 254 N

The man pushes the box with 310 N force at an angle of  55 degrees to the horizontal.

we can write this in terms of horizontal (F cos \theta)and vertical component (F sin\theta).

Horizontal component: F_H=310 \times cos (55^o)= 178 N

Vertical component: F_v=310 \times sin (55^o)= 254 N

The vertical component would act towards the floor making the job more difficult to move the job.



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3 years ago
Hazardous wastes are placed into categories to aid in _____.
torisob [31]
The waste that poses substantial or potential threats to public and environment health
Hazardous waste are actually defined as RCRA in 40 CFR 261 the the four hazardous traits are 
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4 0
3 years ago
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A violin string E vibrates faster then another violin string G when bowed. Which string produced a sound with higher frequency?​
Lisa [10]

Violin string E

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2 years ago
La) What is meant by the term Basic Quantities.​
castortr0y [4]

Answer:

A basic quantity is basically the physical quantity that can not be defined in terms of other quantities.

Explanation:

A basic quantity is basically the physical quantity that can not be defined in terms of other quantities.

Some of the names of the basic quantities include:

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  2. Length, denoted by symbol 'l', with S.I. unit 'm'
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  5. Temperature, denoted by 'T', with S.I. unit 'K'
  6. Amount of substance, denoted by 'n', with S.I. unit 'mol'
  7. Luminous Intensity, denoted by 'Iv', with S.I. unit 'cd'

  • A basic quantity is chosen arbitrarily.
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2 years ago
Why is it possible to see the moon during the day?
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It depends on the brightness of its light—which is really just the sun's light reflecting off of the moon's<span> surface—and the earth's rotation. In order for the </span>moon<span> to be visible in the sky, it needs to be above the horizon. </span>
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