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Norma-Jean [14]
3 years ago
8

Explain whether a particle moving in a straight line with constant speed does or does not have an acceleration. b) Explain wheth

er a particle moving around a curve with constant speed does or does not have an acceleration.
Physics
1 answer:
Lelechka [254]3 years ago
5 0

Answer:

A: No because it is nor changing speed or direction

B: Yes because it changes direction even though the speed is constant

Please Give Brainliest

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A battery produces______ current, which is current that flows in only one direction
Lady bird [3.3K]

Explanation:

the battery stores chemical energy but produces direct current electricity

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3 years ago
An object is constrained by a cord to move in a circular path of radius 0.5m on a horizontal frictionless surface. The cord will
Digiron [165]

Answer:

maximum kientcie energy is 4 Joules.

Explanation:

When an object moves in a circular path, the tension acting on the cord is equal to the centripetal force.

Here, the cord will break if its tension exceeds 16 N and the radius of the circular path is 0.5 m. So,

\dfrac{mv^2}{r}=16\\\\mv^2=16\times r\\\\mv^2=16\times 0.5\\\\mv^2=8.......(1)

We know that the kinetic energy of the object is given by :

E=\dfrac{1}{2}mv^2

Putting equation (1) in above equation as :

E=\dfrac{1}{2}\times 8\\\\E=4\ J

So, the maximum kinetic energy the object can have is 4 Joules.

3 0
4 years ago
The storm surge of a hurricane can cause
BabaBlast [244]

Answer:

it can cause huricans and flooding

Explanation:

Storm surge is the rising of the sea level due to the low pressure, high winds, and high waves associated with a hurricane as it makes landfall. The storm surge can cause significant flooding and cost people their lives if they're caught unexpected

7 0
3 years ago
Read 2 more answers
Need help <br> -help me <br> - brainliest<br> - and 46 points to you
Otrada [13]

Answer:

10) The CMB is useful to scientists because it helps us learn how the early universe was formed. It is at a uniform temperature with only small fluctuations visible with precise telescopes.

11) The anisotropies appear on the map as cooler blue and warmer red patches.... These anisotropies in the temperature map correspond to areas of varying density fluctuations in the early universe. Eventually, gravity would draw the high-density fluctuations into even denser and more pronounced ones.

hope this helps ya

can I please get the brainliest?

pretty please??!!

3 0
3 years ago
By what factor will the acceleration of an object change its mass stays constant but the force acting on it triples
Viktor [21]

Answer:

lacceleration is given by

a=F/m

With force acting on the object remained constant ,the acceleration is inversly proportional to mass of the object i.e with increase in mass =>acceleration decreases and with decrease in mass => acceleration increases.

a)

acceleration decreases

b)

acceleration increase

7 0
3 years ago
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