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Effectus [21]
3 years ago
12

A sample of gas is enclosed in a container of fixed volume. Identify which of the following statements are true. Check all that

apply.If the container is heated, the gas particles will lose kinetic energy and temperature will increase.
Physics
1 answer:
motikmotik3 years ago
7 0

Answer:

B. If the container is cooled, the gas particles will lose kinetic energy and temperature will decrease.

C. If the gas particles move more quickly, they will collide more frequently with the walls of the container and pressure will increase.

E. If the gas particles move more quickly, they will collide with the walls of the container more often and with more force, and pressure will increase.

#FreeMelvin

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60km/hr west

Explanation:

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Which of the following type of personal debts is usually considered wise and justified? A. credit card purchases of luxuries tha
NeTakaya

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4 0
3 years ago
A car drives off a cliff next to a river at a speed of 30 m/s and lands on the bank on theother side. The road above the cliff i
dezoksy [38]

Answer:1.301 s

Explanation:

Given

Initial Velocity(u)=30 m/s

Height of cliff=8.3 m

Time taken to cover 8.3 m

h=ut+\frac{at^2}{2}

here Initial vertical velocity is 0

8.3=\frac{gt^2}{2}

t^2=1.69

t=1.301 s

Horizontal distance

R=u\times t

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7 0
3 years ago
1) A football player kicks a ball at an angle of 30 and gives it a velocity of 15m/s.
mote1985 [20]

Answer:

A) 1.53s

B) 19.8m

C) 2.869m

Explanation:

A) The time of flight for a projectile can be calculated using the formula:

t = 2μsinθ/g

Where; u = velocity

θ = angle

g = acceleration due to gravity (9.8m/s^2)

t = 2 × 15 × sin 30°/9.8

t = 30sin30°/9.8

t = 30 × 0.5/9.8

t = 15/9.8

t = 1.53s

B) The horizontal range (distance) for a projectile can be calculated using the formula:

Range = u²sin2θ/ g

Range = 15² sin 2 × 30 / 9.8

Range = 225 sin 60/9.8

Range = 225 × 0.8660/9.8

Range = 194.855/9.8

Range = 19.8m

C) The maximum height for a projectile can be calculated using the formula:

h = u²sin²θ/2g

h = 15² (sin 30)² / 2 × 9.8

h = 225 × 0.25 / 19.6

h = 56.25/19.6

h = 2.869m

​

3 0
3 years ago
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