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Anestetic [448]
2 years ago
11

Please help me, please i will mark brainliest

Physics
2 answers:
abruzzese [7]2 years ago
5 0

Answer:

conductor,neither,insulator

Explanation:

conductors allow electricity to flow through while insulators do not

HOPE IT HELPS

bixtya [17]2 years ago
3 0
Conductor, neither, insulator
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An engine performs 6400 j of work on a motorbike the motorbike and the rider have a combined mass of 200 kg if the bike started
spin [16.1K]

The work done by the engine is converted into kinetic energy of the motorbike+rider system:

W=K=\frac{1}{2}mv^2

where

W=6400 J is the work

m=200 kg is the mass of the system

v is the speed acquired by the motorbike


Rearranging the equation and substituting the numbers in, we find

v=\sqrt{\frac{2W}{m}} =\sqrt{\frac{2(6400 J)}{200 kg}} =8 m/s

4 0
2 years ago
Projectile <br> SHOW WORK<br> WILL MARK BRANLIEST <br> (Draw Picture and Label)
m_a_m_a [10]

a) The horizontal distance covered by the projectile is 600 m

b) The projectile reaches its maximum height after 3.00 s

c) The altitude of the highest point is 44.1 m

Explanation:

a)

The motion of the projectile consists of two independent motions:  

- A uniform motion (constant velocity) along the horizontal direction  

- A uniformly accelerated motion, with constant acceleration (acceleration of gravity) in the downward direction  

In this part A, we just need to analyze the horizontal motion. We know that:

  • The projectile travels horizontally with a constant velocity ov v_x = 100 m/s
  • The total time of flight of the projectile is t=6.00 s

Therefore, the horizontal distance covered by the projectile is given by

x=v_x t

And substituting, we find

x=(100)(6.0) = 600 m

b)

For this part, we need to analyze the vertical motion of the projectile.

First, we want to find the initial vertical velocity. We can do it by using the equation for the vertical displacement:

s=u_y t + \frac{1}{2}at^2

where:

u_y is the initial vertical velocity

a=g=-9.8 m/s^2 is the acceleration of gravity (negative because it is downward)

t is the time

s is the vertical displacement

We know that the total time of flight is t = 6.00 s: this means that when t=6, the projectile returns to its initial vertical position, so s = 0. Substituting and solving for u_y, we get

u_y = - \frac{1}{2}at=-\frac{1}{2}(-9.8)(6)=29.4 m/s

The vertical velocity then as a function of t is given by

v_y = u_y + at

And at the maximum height, it becomes zero: v_y = 0. Substituting and solving for t, we find the time at which the projectile reaches the maximum height:

t=-\frac{u_y}{a}=-\frac{29.4}{-9.8}=3.00 s

c)

To find the altitude of the highest point in the path, we use again the equation:

s=u_y t + \frac{1}{2}at^2

where

u_y = 29.4 m/s is the initial vertical velocity

t = 3.00 s is the time at which the projectile reaches the highest point

a=g=-9.8 m/s^2 is the acceleration of gravity

Substituting the values, we find

s=(29.4)(3.00)+\frac{1}{2}(-9.8)(3.00)^2=44.1 m

So, the highest point is at 44.1 m above the ground.

Learn more about projectiles:

brainly.com/question/8751410

#LearnwithBrainly

8 0
3 years ago
The energy of atoms and molecules in an object due to their motion is_______ energy
QveST [7]
I think the answer is potential 
7 0
3 years ago
In a lab, the mass of object a is 52 kg. object a weighs
aksik [14]
If you are asking for the weight then the formula is F=mg where f is weight m is mass and g is acceleration due to gravity.m=52kg and g=9.8m/s2(the gravity of earth)
F=52*9.8=509.6
therefore the weight of the object is 509.6N
5 0
3 years ago
Read 2 more answers
When you enter a toll road, your ticket is stamped 1:00 p.m. When you leave, after traveling 55 miles, your ticket is stamped 2:
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27.5 because of you divide the 55miles with the time you get your velocity which is the speed.
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