Answer:
4.0 N
Explanation:
Sum the forces in the x direction:
∑F = ma
F − Fr = ma
Fr = F − ma
Fr = 5.00 N − (1.35 kg) (0.76 m/s²)
Fr = 4.0 N
When silver is poured into the mould the it will solidify
In this process the phase of the Silver block will change from liquid to solid.
This phase change will lead to release in heat and this heat is known as latent heat of fusion.
The formula to find the latent heat of fusion is given as
![Q = mL](https://tex.z-dn.net/?f=Q%20%3D%20mL)
here given that
![m = mass = 500 g](https://tex.z-dn.net/?f=m%20%3D%20mass%20%3D%20500%20g)
![L = 111 kJ/kg](https://tex.z-dn.net/?f=L%20%3D%20111%20kJ%2Fkg)
now we can find the heat released
![Q = 0.5 * 111 kJ](https://tex.z-dn.net/?f=Q%20%3D%200.5%20%2A%20111%20kJ)
![Q = 55.5 kJ](https://tex.z-dn.net/?f=Q%20%3D%2055.5%20kJ)
So it will release total heat of 55.5 kJ when it will solidify
Answer:
b. 20 sec
Explanation:
y = y₀ + v₀ t + ½ g t²
0 = 0 + (100) t + ½ (-10) t²
0 = 100t − 5t²
0 = t (100 − 5t)
t = 0, t = 20
The body lands after 20 seconds.
We have that the Number of stitches per sec and he mass of oscillation motion is mathematically given as
a) Nt=25stitches per sec
b) m=2.033e-5kg
<h3>
Number of
stitches per sec and he mass of oscillation motion</h3>
Question Parameters:
This <u>sewing </u>machine is capable of stitching 1,500 stiches in one minute.
If the <em>sewing </em>machine has a spring constant of 0.5 N/m,
Generally the equation for the Number of stitches per sec is mathematically given as
Nt=N/t
Therefore
Nt=1500/60
Nt=25stitches per sec
b)
Generally the equation for the Time t is mathematically given as
![T=2\pi\sqrt{\frac{m}{k}}](https://tex.z-dn.net/?f=T%3D2%5Cpi%5Csqrt%7B%5Cfrac%7Bm%7D%7Bk%7D%7D)
Therefore
![0.04=2\pi\sqrt{\frac{m}{0.5}}\\\\m=\frac{0.5*0.04^2}{4\pi^2}](https://tex.z-dn.net/?f=0.04%3D2%5Cpi%5Csqrt%7B%5Cfrac%7Bm%7D%7B0.5%7D%7D%5C%5C%5C%5Cm%3D%5Cfrac%7B0.5%2A0.04%5E2%7D%7B4%5Cpi%5E2%7D)
m=2.033e-5kg
For more information on Mass visit
brainly.com/question/15959704
Answer:
longitudinal waves have those properties