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ahrayia [7]
3 years ago
10

What is the resultant of the two vectors shown?

Physics
1 answer:
BARSIC [14]3 years ago
5 0

Answer:

B is the right answer of the following statement

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After a 50-kg person steps from a boat onto the shore, the boat moves away with a speed of 0.70 m/s with respect to the shore. I
Svetradugi [14.3K]

Answer:

M=125 kg

v=1.75 m/s

Explanation:

From the law of linear momentum

  P =mv

Case 1     50*V =M* 0.7     equation 1

               50*V =(M+50)* 0.5    equation 2

equating 1 and 2

               M* 0.7=(m+50)* 0.5

               0.2 M= 25

                    M=125 kg

Putting value of M in equation 1

               50*V =125*0.7

                     V=1.75 m/s

                   

7 0
3 years ago
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ndicate whether the statement is true or false. Whenever we move, we alter the rate at which we move into the future. A. True B.
Ksju [112]
Whenever we move, we alter the rate at which we move into the future. This statement is true. 
4 0
3 years ago
What is the concentration of H+ ions at a pH = 2
jolli1 [7]
Its 1.0*10^-7M     its considered a concentration because hydrogen ion is exactly equal to hydroxide ions produced by dissociation of water 
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3 years ago
The force of kinetic friction between a box sliding on a surface depends on the ____ .
vazorg [7]

Answer: speed of the box

Explanation: maybe

6 0
2 years ago
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A force of 35 N acts on a ball for 0.2 s. If the ball is initially at rest:
olya-2409 [2.1K]

To solve this problem we will apply the concepts related to momentum and momentum on a body. Both are equivalent values but can be found through different expressions. The impulse is the product of the Force for time while the momentum is the product between the mass and the velocity. The result of these operations yields equivalent units.

PART A ) The Impulse  can be calculcated as follows

L= F\Delta t

Where,

F = Force

\Delta t =Change in time

Replacing,

L = (35N)(0.2s)

L= 7N\cdot s

PART B) At the same time the momentum follows the conservation of momentum where:

Initial momentum= Final momentum

And the change in momentum is equal to the Impulse, then

\Delta p = L

And

\Delta p = p_f - p_i

There is not initial momentum then

\Delta p = p_f

L = p_f

p_f = 7N\cdot s = 7kg\cdot m/s

8 0
3 years ago
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