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liq [111]
3 years ago
11

A 2-kg ball is thrown at 3 m/s. What is the ball's momentum? *

Physics
1 answer:
crimeas [40]3 years ago
8 0

Answer:

Given

mass (m) =2kg

velocity (v) =3m/s

momentum (p) =?

Form

p=mv

2kgx3m/s

p=6kg.m/s

the momentum of ball's =6kg.m/s

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balandron [24]

Answer:

160

Explanation:

1000 divided by 6.25

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3 years ago
If a body starts moving from rest its<br>initial velocity is<br>ų <br>V<br>zero<br>m/s​
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Answer:

zero

When a Body start a from rest ,its initial velocity is zero.

6 0
3 years ago
A copper cylinder is initially at 21.1 ∘C . At what temperature will its volume be 0.163 % larger than it is at 21.1 ∘C?
fomenos

To solve this problem we will apply the concepts related to the final volume of a body after undergoing a thermal expansion. To determine the temperature, we will use the given relationship as well as the theoretical value of the volumetric coefficient of thermal expansion of copper. This is, for example to the initial volume defined as V_1, the relation with the final volume as

V_2 = V_1 +0.163\% V_1

V_2 = V_1 +0.00163V_1

V_2 = 1.00163V_1

Initial temperature = 21.1\°C

Let T be the temperature after expanding by the formula of volume expansion

we have,

V_2 = V_1 (1+\gamma \Delta t)

Where \gamma is the volume coefficient of copper 5.1*10^{-5}/C

1.00163V_1 = V_1(1+\gamma(T-21.1\°))

1.00163 = 1+5.1*10^{-5}(T-21.1\°)

0.00163 = 0.000051T-0.0010761

T = 53.0608\°C

Therefore the temperature is 53.06°C

7 0
3 years ago
Valency of oxygen is two. why??​
AlexFokin [52]

Answer:

Tha valency of Oxygen is 2 because it need two atom of hydrogen to form water.

6 0
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Read 2 more answers
B. Interpret Data Solution A has a pH of 1.6.
Kobotan [32]

Answer:

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Explanation:

Hey im super sorry if i get this wrong :)

6 0
3 years ago
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