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trapecia [35]
2 years ago
7

Aball is thrown horizontaly from the top of a building with an initial velocity of 15 meters per second. At the same instant, a

second ball is dropped from the top of the building. Which of the following is the
same for the two balls?
Physics
1 answer:
beks73 [17]2 years ago
5 0

Answer:

Both balls have the same downward acceleration (and speed)

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Distance= speed (multiplied by) time
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3 years ago
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A skier is accelerating down a 30.0-degree hill at 3.80 m/s^2.
Bond [772]

Answer:

ax = -3.29[m/s²]

ay = -1.9[m/s²]

Explanation:

We must remember that acceleration is a vector and therefore has magnitude and direction.

In this case, it is accelerating downwards, therefore for a greater understanding we will make a diagram of said vector, this diagram is attached.

a_{x}=-3.8*cos(30) = -3.29 [m/s^{2}]\\ a_{y}=-3.8*sin(30) = -1.9 [m/s^{2}]

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3 years ago
Which equation could not be used to determine straight line acceration?
uranmaximum [27]

Answer:

the answer for the question is the last option

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3 years ago
A capacitor is charged to 8.0×10−4 C , then discharged by connecting a wire between the two plates. 35us after the discharge beg
Anettt [7]

Answer:

The average current is 19.567 A

Solution:

As per the question:

Charge, Q = 8.0\times 10^{- 4}\ C

Time, t = 35\times 10^{- 6}\ s

Now,

We know that current is constituted by the rate of transfer of the charge per unit time. Thus we can write:

I = \frac{Q}{t}                 (1)

Now, the charge that was transferred is 86 % of the original value.

Therefore,

We replace Q by 0.86Q in eqn (1):

I = \frac{0.86\times 8.0\times 10^{- 4}}{35\times 10^{- 6}} = 19.657\ A

7 0
3 years ago
3. A cat is moving at 18 m/s when it accelerates at 4 m/s2 for 2 seconds. What is
salantis [7]

Answer:

v=u+at

v=8+(4x2)

v=16m\s2

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