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vovikov84 [41]
4 years ago
12

99 POINTS PLZ HELP

Physics
1 answer:
laiz [17]4 years ago
7 0
I can only help you with the last two questions from lesson 5.01

-Because light is the fastest thing in our universe you can calculate the distance by how much time light has to take in order to travel that distance which is light years

-Light years, and every measurement you can think of. Except light years are the easiest most efficient way to measure distances
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A high-temperature gas is compared to the same gas at lower temperature. Which of the following statements is true?
ycow [4]

Answer:

I think it is C

Explanation:

If the temperature of a gas increases, the gas particles have a higher average speed as they gain kinetic energy. They collide more frequently with the walls of the container, which produces a bigger pressure.

7 0
3 years ago
Now assume that the frictional force f is not at its maximum value. What is the relation between the torque Ï„ applied to each w
leva [86]

Answer:

a)The direction the frictional force will acts is in the positive x direction.

Explanation:

a)The direction the frictional force will acts is in the positive x direction

b)in the horizontal direction, the total force F(total) is equal to 4times the frictional force in the wheel.

F(total)=4f

''f'' is taken as the frictional force.

c)4times the normal force on each wheel minus the acceleration equals zero i.e 4N(wheel)-a=0

=4N(wheel)-mg=0

d) torque is the force that tends to bend rotation

ζ=rf

but acceleration=4×frictional force

cross multiply

f=ζ/r

f=ma/4

ma/4=ζ/r

a=4ζ/r

5 0
3 years ago
Read 2 more answers
The distance between the centers of the wheels of a motorcycle is 156 cm. The center of mass of the motorcycle, including the ri
Drupady [299]

Answer:

a = 9.86 m/s²

Explanation:

given,

distance between the centers of wheel = 156 cm

center of mass of motorcycle including rider = 77.5 cm

horizontal acceleration of motor cycle = ?

now,

The moment created by the wheels must equal the moment created by gravity.

take moment about wheel as it touches the ground, here we will take horizontal distance between them.

then, take the moment around the center of mass. Since the force on the ground from the wheels is horizontal, we need the vertical distance.

now equating both the moment

m g d = F h

d is the horizontal distance

h is the vertical distance

m g d = m a h

term of mass get eliminated

g d = a h

so,

a = \dfrac{g\ d}{h}

a = \dfrac{9.8\times 0.78}{0.775}

a = 9.86 m/s²

4 0
3 years ago
During the first 40 s a truck traveled at a constant speed of 15 m/s. Find the
kotykmax [81]

Answer:

600 m

Explanation:

Distance = speed × time

= (15)(40)

= <u>6</u><u>0</u><u>0</u><u> </u><u>m</u>

6 0
3 years ago
Describe how the wavelength of a wave changes if the wave slows down but its frequency does not change.
babunello [35]

Answer:

If the wave slows down with no change in frequency, the wavelength decreases.

3 0
3 years ago
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