Answer: momentum = 6kgm/s
Explanation:
given that the baseball pitcher is at stationary position, his velocity will be equal to zero. If velocity is zero, his linear momentum will therefore equal to zero.
Linear momentum is the product of mass and velocity. Given that the baseball has
Mass M = 0.15 kg
Velocity V = 40 m/s
Momentum = MV
Momentum = 0.15 × 40 = 6 kgm/s
I'm not sure...
I feel ya.
My best guess is c) Dark colors reflect less radiation making them warmer.
hope this helps!
The acceleration of the sled will be 1.30 m/s². Force is defined as the product of mass and acceleration.
<h3>What is force?</h3>
Force is defined as the push or pulls applied to the body. Sometimes it is used to change the shape, size, and direction of the body.
Given data;
m(mass of sled)=8 kg
Θ is the inclination of force= 50°
Force of friction,f=2.4 N.
The applied force at the given angle is resolved into the two-component as;
![\rm F_h=F cos \theta \\\\ F_h= 20 cos 50 ^0 \\\\ F_h= 12.85 \ N](https://tex.z-dn.net/?f=%5Crm%20F_h%3DF%20cos%20%5Ctheta%20%5C%5C%5C%5C%20F_h%3D%2020%20cos%2050%20%5E0%20%5C%5C%5C%5C%20F_h%3D%2012.85%20%5C%20N)
![\rm F_v=F sin \theta \\\\ F_v=20 sin 50^0 \\\\ F_v=15.32 \ N](https://tex.z-dn.net/?f=%5Crm%20F_v%3DF%20sin%20%5Ctheta%20%5C%5C%5C%5C%20%20F_v%3D20%20sin%2050%5E0%20%5C%5C%5C%5C%20%20%20F_v%3D15.32%20%5C%20N)
The net vertical force is zero;
![\rm F_N=mg-Fsin50^0 \\\\ \rm F_N=8 \times 9.81 -15.32 \\\\ F_N=63.1 \ N \\\\](https://tex.z-dn.net/?f=%5Crm%20F_N%3Dmg-Fsin50%5E0%20%5C%5C%5C%5C%20%5Crm%20F_N%3D8%20%5Ctimes%209.81%20-15.32%20%5C%5C%5C%5C%20F_N%3D63.1%20%5C%20N%20%5C%5C%5C%5C)
From Newton's second law the net force as;
![\rm \sum F_{net}=ma \\\\ Fcos 60^0-f =ma \\\\ a=\frac{12.855-2.4}{8} \\\\a = 1.30 \ m/s^2](https://tex.z-dn.net/?f=%5Crm%20%5Csum%20F_%7Bnet%7D%3Dma%20%5C%5C%5C%5C%20Fcos%2060%5E0-f%20%3Dma%20%5C%5C%5C%5C%20a%3D%5Cfrac%7B12.855-2.4%7D%7B8%7D%20%5C%5C%5C%5Ca%20%3D%201.30%20%5C%20m%2Fs%5E2)
Hence, the acceleration of the sled will be 1.30 m/s².
To learn more about the force refer to the link;
brainly.com/question/26115859
#SPJ1
Answer:
≈ 22¢
Explanation:
240 / 1000 = 0.240 kV
0.240 kV(2.5 A)(3 hr) = 1.8 kW•hr
1.8 kW•hr($0.12/kW•hr) = $0.216