Answer:
11.95m/s
Explanation:
A moving object has a kinetic energy of 150 J and a momentum of 25.1 kg·m/s.
a) Find the speed of the object. Answer in units of m
K. E =½mv²
150= ½mv²
Multiply both sides by 2
mv² = 300
Divide both sides by v²
m = 300/v² .................. Equation 1
Momentum is the product of mass and velocity
Momentum = mv
25.1 = mv
Divide both sides by v
m = 25.1/v ................ Equation 2
Equate equations 1 and 2
300/v² = 25.1/v
Cross multiply
25.1v² = 300v
Multiply v with both sides
25.1v = 300
Divide both sides by 25.1
v = 300/25.1
V = 11.95m/s
I hope this was helpful, please mark as brainliest
The product of √30 and √610 is 10√183.
√30 = √(2×3×5)
and √610 = √(2×5×61
Since 61 can't be factorised further.
Therefore, the value of √30×√610 is
= √(2×3×5×2×5×61)
= 2×5×√(3×61)
=10√183
Answer:
The answer is D because more volume of warm water will go into the mixture
Explanation:
<u>Given</u><u>:</u>
<u>To</u><u> </u><u>be</u><u> </u><u>calculated</u><u>:</u>
Calculate the kinetic energy?
<u>Solution</u><u>:</u>
Kinetic energy = 1/2 mv²
= 1/2 × 55 × 0.6²
= 55/2 × 0.36
= 55 × 0.18
= 9.9 kg.m/s