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34kurt
3 years ago
13

Average acceleration of an object is the:

Physics
1 answer:
Andreyy893 years ago
8 0

Answer:

Change in its velocity divided by the change in time

Explanation:

the equation for average acceleration (a) = (vf-vi)/t

a = (velocity final - velocity initial) / change in time

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A fish swimming in a horizontal plane has velocity v with arrowi = (4.00 i + 1.00 j) m/s at a point in the ocean where the posit
jasenka [17]
To determine the acceleration of the fish, we use one of the kinematic equation which relates velocity and acceleration. Using the given velocities, we substitute it to the equation. As we see, the velocities include their directions where i represents the x direction and j represents the y direction. We do as follows:

a = (v-vi) / t
a = [ (20.0 i - 5.00 j) - (4.00 i + 1.00 j)] / 23
Combining like terms,
a = [16i - 6j] / 23
TO determine the components of the acceleration, we do as follows:
 
<span>ax = 16.0/23.0 m/s2 = 0.70 m/s^2 ( to the right)</span>
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8 0
3 years ago
An electron is located on the x axis at x0 = -9.31×10-6 m. Find the magnitude and direction of the electric field at x = 9.39 ×1
ozzi

Answer: 75

Explanation:

3 0
3 years ago
The temperature of 20 liters of helium gas is increased from 100°K to 300°K. If the pressure was kept constant, the new volume w
slavikrds [6]

Answer:

New volume (V2) = 60 liter

Explanation:

Given:

Amount of helium (V1) = 20 Liter

Temperature (T1) = 100°K

Temperature (T2) = 300°K

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New volume (V2)

Computation:

According to Gas Law:

V1 / T1 = V2 / T2

20 / 100°K = V2 / 300°K

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8 0
3 years ago
Why does a small pebble sin in water?
strojnjashka [21]
A small pebble would sink in water because it is to light and can’t hold itself up in the water. Hope this helped!
6 0
3 years ago
A mass of (200 g) of hot water at (75.0°C) is mixed with cold water of mass M at (5.0°C). The final temperature of the mixture i
MArishka [77]

Answer:

500 g

Explanation:

Specific heat of water = 1 j/g-c

Heat given up by hot water = 200(75-25)(1) = 10 000 j

this is the heat GAINED by the cold water

10000 j =  x ( 25 -5)(1)  

          x =500g

3 0
2 years ago
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