Explanation:
It is given that,
Length of the string, l = 2 m
Mass of the string, 
Hanged mass in the string, 
1. The tension in the string is given by :
T = 1.96 N
2. Velocity of the transverse wave in the string is given by :
m = M/l
v = 28 m/s
Hence, this is the required solution.
Answer:
They're asking you to explain how the race went bit you have to roughly explain just by looking at the graph.
Explanation:
Alberta- She didn't start at the beginning but now she's running as fast as she can. Wow, she's gaining speed like crazy and may be the fastest contestant. (The line is extremely straight which means she gains speed fast and runs very quick at a constant speed)
Betsy- Betsy is starting slowly but surely and speeds up. She gets to the finish quite fast. (The line has a slanted slope at first but gets very straight and vertical eventually which means there is a high speed)
Carla- Carla is starting the race at 500 meters but she is running very smoothly and constantly without slowing down. (I say this because you can see on the distance line that she starts at the middle and for the speed you can see the line is straight which means its constant.)
Dora- Dora has a constant page and is running quite well but ooh she stops. Maybe she's already tired of running but she's got a long way to go. She's running again! A fast and constant pace just like at the start. (You can see at line is straight which means a constant pace but then the line stops which means she stopped running. Then at the end you can see a constant pace again)
A ) <em>Speed</em><em> </em><em>is</em><em> </em><em>a</em><em> </em><em>scalar quantity and velocity is a vector quantity.</em>
Answer: Option C) 9.63 joules
Explanation:
Mass of object = 8.8kg
Speed of object = ?
Kinetic energy = ?
Momentum of the object = 13 kgm/s
Recall that momentum is a product of mass M and speed V of a moving object.
Thus, Momentum = Mass x Speed
13 kgm/s = 8.8kg x V
V = (13kgm/s ➗ 8.8kg)
V = 1.48 m/s
Now, that the speed of the object is known, calculate its kinetic energy. And, its kinetic energy depends on its mass M and speed, V
Thus, Kinetic energy = 1/2 x mv^2
= 1/2 x 8.8kg x (1.48m/s)^2
= 0.5 x 8.8kg x (1.48m/s)^2
= 4.4 x (1.48m/s)^2
= 9.63 joules
Thus, the kinetic energy of the object is
9.63 joules
An unstable isotope changes until it reaches a different element that is stable.
An unstable isotope changes until it reaches a different isotope of the same element that is stable.
i just did this on ed the other answer was wrong. these ones are right tho
