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belka [17]
3 years ago
12

A ball is thrown upward. what can be said about the system ?

Physics
2 answers:
Gwar [14]3 years ago
6 0
It can also be considered as a closed system
Liula [17]3 years ago
4 0
That you have thrown a ball with kinetic energy upwards at an increasing velocity rate
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PLZ HELP NEED ANSWERS!!!!!!!!!!
expeople1 [14]

Answer:

Rice

Explanation:

Bro just dip it in rice thatd the only way to go

4 0
3 years ago
As a system increases in volume, it absorbs 59.0 J of energy in the form of heat from the surroundings. The piston is working ag
Zepler [3.9K]

Answer:

The initial volume of the system is 2.7 L

Explanation:

The change in internal energy is given by;

ΔU = Q - W

where;

Q is the heat absorb from the surrounding

W is the work done by the system

Given;

ΔU  = -107.6 J

Q = 59 J

W = ?

W = Q- ΔU

W = 59J - (-107.6)

W = 166.6 J

Work done is given by;

W = PΔV

W = P(V₂ - V₁)

101.325 Joules = 1 L.atm

166.6 Joules  = ?

= 1.644 L.atm

1.644 L.atm = 0.543 atm(57.7L - V₁)

57.7L - V₁ = (1.644 L.atm) / (0.543 atm)

57.7L - V₁ = 3.0 L

V₁ = 57.7L - 3.0 L

V₁ = 2.7 L

Therefore, the initial volume of the system is 2.7 L

5 0
3 years ago
A static charge is different from an electric current, in that a static charge __
Vesna [10]
Static charge occurs when there is an imbalance of positively and negatively charged atoms, so this one should be the last option that it involves ions as well.

Hope this helps :)
5 0
4 years ago
How can wasted energy be made useful?
murzikaleks [220]

Answer:

by using it in a such place or thing which needs it or which can work with it

7 0
2 years ago
Mary is traveling at a speed of 35 m/s sees a squirrel run across the road in front of her and slams on the brakes. Four seconds
Simora [160]

After 4 seconds the velocity function attains a=8.75m/s².

Given-

Velocity= 35m/s

time=4sec

To find out acceleration, we can understand the following-

Acceleration means rate of change of velocity.

In this question the velocity depreciates to zero i.e. the slope of the graph falls off with negative slope.

This value has negative impact on force as the resultant force is outcome of application of brakes where V=0 as time progresses.

Mathematically, a=\frac{dv}{dt}

v- means velocity .

calculations-

a=35/4

a=8.75m/s²

To find out about acceleration -

<u>brainly.com/question/22935373</u>

#SPJ4

5 0
1 year ago
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