3 years ago

In order to ride a bike up a hill with increasing speed—

Physics

2 answers:

zaharov [31]3 years ago

6 0

Answer:

the riders must be greater than friction and the force of gravity. uh I guessed

polet [3.4K]3 years ago

3 0

The correct answer would be: “the riders pedal force must be greater than friction and the force of gravity”

hope this helps!

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PLEASE HELP ASAP!!! CORRECT ANSWERS ONLY PLEASE!!!

Arada [10]

Answer:D

Explanation: both variables change in the same direction. An increase in one variable leads to an increase in the other, a decrease in one lead to a decrease the another

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4 years ago

Look at the diagram below. The value of equivalent resistor is: A. 4 Ω B. 6 Ω C. 8 Ω D. 10 Ω

Advocard [28]

Answer:

R=4Ω

Explanation:

R1 and R3 are parrallel

so we have : R=R1*R2/R1+R2

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R2 and 2Ω are in series,so we have

R=R2+2

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3 years ago

Tabitha hit a 0.25 kg volleyball straight up into the air with 45 Joules of energy. How high did volleyball soar up? Round to th

zavuch27 [327]

Answer:

18 m

Explanation:

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7 0

4 years ago

A snowboarder starts from rest on an inclined planar snow surface and gives herself a tiny push to start sliding down the hill.

tiny-mole [99]

Answer:

v = 26.52 m/s

Explanation:

Here we know that as she passes the flag she will gain some speed

so here we can say that

Work done by all forces = change in kinetic energy of the system

so we will have

$W_g + W_f = \frac{1}{2}mv_f^2 - \frac{1}{2}mv_i^2$

here we know that

$W_g = mgh$

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d = 27.81 m

so we have

$mgh - \mu mg d = \frac{1}{2}mv^2 - 0$

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$v = 26.52 m/s$

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3 years ago

an object with a mass of 1.5 kg changes its velocity from 15 m/s to 22 m/s during a time interval of 3.5 seconds. what impulse w

natulia [17]

Impulse is the change in momentum

J = 1.5 kg(22 m/s - 15 m/s) = 10.5 kg-m/s

6 0

3 years ago

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