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Anestetic [448]
3 years ago
15

Choose the correct answer from the given alternatives

Physics
1 answer:
Black_prince [1.1K]3 years ago
8 0

Answer:

d

Explanation:

cggbhhgffffggdfvvcdfh

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Note: the 2 in the answers are exponents
stiks02 [169]

Final speed after collision with the wall

v_f = -0.4 m/s

before collision the speed of ball initially

v_i = 0.6 m/s

time taken for the collision

\Delta t = 0.2 s

now as per the formula of acceleration we know that

a = \frac{v_f - v_i}{\Delta t}

now plug in all values in it

a = \frac{-0.4 - 0.6}{0.2}

a = -5.0 m/s^2

so acceleration is - 5 m/s/s for above situation

4 0
4 years ago
Which of the following is correct definition of electrical energy
tatyana61 [14]

Answer:

Electrical energy. Jump to navigation Jump to search. Electrical energy is energy derived from electric potential energy or kinetic energy. When used loosely, electrical energy refers to energy that has been converted from electric potential energy

Explanation:

6 0
3 years ago
A scientist performs an experiment and asks other scientists around the
Arte-miy333 [17]

Answer: C

Explanation: I think

7 0
3 years ago
You are working in a shoe test laboratory measuring the coefficients of friction for running shoes on a variety of surfaces. The
AnnZ [28]

Answer:

0.75

Explanation:

Since the static frictional force is the maximum force applied just before sliding, our frictional force, F is 300 N.

Since F = μN where μ = coefficient of static friction and N = normal force = 400 N (which is the downward force applied against the surface).

So, μ = F/N

= 300 N/400 N

= 3/4

= 0.75

So, the  coefficient of static friction μ = 0.75

6 0
3 years ago
Order the seven basic spectral types from hottest to coldest.
vfiekz [6]

Answer:

There are basically seven spectral types which are used for classifying the stars and it is arranged in the order of increasing temperature from the hottest temperature to the coldest division are: O, B, A, F, G, K, and M. These categories are basically divided into the sub category in the spectral where O is the hottest type and M is the coldest type.  

8 0
3 years ago
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