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Arisa [49]
4 years ago
12

In getting ready to slam-dunk the ball, a basketball player starts from rest and sprints to a speed of 4.82 m/s in 1.98 s. Assu

ming that the player accelerates uniformly, determine the distance he runs.
Physics
1 answer:
Ann [662]4 years ago
7 0
Great equation: distance = rate*time

So, distance run = 4.82 meters/second * 1.98 seconds = 9.5436 meters (round according to whatever the problem specifies, usually to the tenths or hundredths is sufficient).

This makes sense if you think about it since you are multiplying seconds with meters over seconds. The seconds cancel out, leaving you only the meters.
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If pressurized air pressure is 350 kPa, atmospheric pressure is 100 kPa, initial atmospheric pressure is 100 kPa, initial accele
Travka [436]

Answer:

d=8.657mm

Explanation:

From the question we are told that

Pressurized air pressure is P_{air}=350 kPa,

Atmospheric pressure is P_a=100 kPa

Initial acceleration of the water rocket is a_i=0.5g.

Acceleration of the water rocket is  a_r=0.5g

Mass of water is M_w=0.5 kg

Generally total mass is given mathematically given as

T_M=0.5+0.5=>1kg

Generally the tension on the rocket is given mathematically given as

T=(P_{air}-P_a)A

T=(350-100) \frac{\pi d^2}{4}

T is also

T=\frac{3Mg}{2}

Therefore

T=>(350-100) \frac{\pi d^2}{4}= \frac{3Mg}{2}

T=>(350-100) \frac{\pi d^2}{4}= \frac{3*1*9.81}{2}

d^2= \frac{3*1*9.81*4}{2(350-100) \pi}

d=\sqrt{\frac{3*1*9.81*4}{2(350-100) \pi}}

d=8.657mm

therefore diameter of nozzle is mathematically given as

d=8.657mm

8 0
3 years ago
While painting the top of an antenna 275 m in height, a worker accidentally lets a 1.00 L water bottle fall from his lunchbox. T
Tom [10]

Answer:

The force of impact of the water bottle is F = 13,475 N

Explanation:

Given data,

The height of the antenna, h = 275 m

The mass of the 1 L water bottle, m = 1 kg

Let the bottle moves distance immediately after the impact is, d = 0.2 m

The force exerted by the bottle on the bushes at the ground is given by the formula,

                                   F = mgh / d

Substituting the values

                                   F = 1 x 9.8 x 275 / 0.2

                                      = 13,475 N

The value of the force of impact can be reduced by increasing the value of d, it is like the lowering the hand along with the motion of the ball to catch it thereby reduce the force of impact.

The force of impact of the water bottle is F = 13,475 N

8 0
3 years ago
In an adiabatic process, what happens when gases in a system are compressed?
I am Lyosha [343]
I would say its c
given a fixed volume, when volume decreases while mass remains constant
density increases ie temperature increases also
5 0
3 years ago
Read 2 more answers
If something is traveling at a constant velocity are forces balanced or unbalanced?
lubasha [3.4K]

Answer:

If something is traveling at a constant velocity, then forces are balanced.

Explanation:

If something is traveling at a constant velocity, then the forces must be balanced because a constant velocity is only achieved with balanced forces.

<em>Please </em><em>like </em><em>and </em><em>mark </em><em>brainliest</em><em>!</em><em> </em>

<em>Hope </em><em>it </em><em>helps!</em>

7 0
4 years ago
Read 2 more answers
Please Help!!!!
oee [108]
I think is limestone
7 0
3 years ago
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