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12345 [234]
3 years ago
7

A basketball is tossed upwards with a speed of 5.0 m/s. We can ignore air resistance. What is the maximum height reached by the

basketball from its release point? (Answer using a coordinate system where upward is positive.)
Physics
1 answer:
strojnjashka [21]3 years ago
4 0

Answer:

the maximum height is 1.276 meters

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Explain why materials such as plastic foam, feathers, and fur are poor conductors of heat.
vampirchik [111]
They are poor conductors because they keep the heat trapped in one spot, while other materials like metal let the heat go through itself.
8 0
3 years ago
Marks: 1
____ [38]

Answer:

W = 5W

Explanation:

1W = 1J/s

W = Watts

J = Joules

s = seconds

W = J/s

W = 300J/60s

W = 5W

6 0
2 years ago
One circuit contains only an ac generator and a resistor, and the rms current in this circuit is IR. Another circuit contains on
snow_tiger [21]

Answer:

1/3 times.

Explanation:

Let V₀ be the peak voltage .

IR ( rms )  = ( V₀ / √2 R )

R is value of resistance

IC =  ( V₀ ωC / √2  )

( 1 / ωC is reactance of capacitance in ac circuit  )

\frac{I_R}{I_C} =\frac{\frac{V_0}{\sqrt{2}R } }{\frac{V_0\omega C}{\sqrt{2} } }

= \frac{I_R}{I_C} = \frac{1}{\omega C R}

When frequency is tripled angular frequency will also be tripled

hence the ratio \frac{I_R}{I_C} becomes 1/3 times.

7 0
3 years ago
Suri rolled a bowling ball down a lane in 2.5 s. The ball traveled
igor_vitrenko [27]

Answer:

3.1 m/s

Explanation:

The acceleration of the ball is given by:

a=\frac{v-u}{t}

where

v is the final velocity

u is the initial velocity

t is the time elapsed

Here we know:

a = 1.8 m/s^2 is the acceleration

v = 7.6 m/s is the final velocity

t = 2.5 is the time elapsed

Solving for u, we find the initial velocity of the ball:

u=v-at=7.6 m/s-(1.8 m/s^2)(2.5 s)=3.1 m/s

7 0
3 years ago
Determine how the mechanical advantage of a ramp changes as the ramp becomes longer
kenny6666 [7]
The mechanical advantage becomes smaller, decreasing the amount of work that needs to be done. It will take less effort to lift the object or load. It only changes if the slope does.
3 0
3 years ago
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