Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 9 Answered

please help me to solve it
question image
Asked by asmitasaha2005 | 01 Oct, 2020, 18:40: PM
answered-by-expert Expert Answer
m1v1=m2v2
m subscript 1 over m subscript 2 equals V subscript 2 over V subscript 1 V subscript 2 over V subscript 1 equals fraction numerator 1 cross times 10 to the power of negative 3 end exponent over denominator 4 cross times 10 to the power of negative 3 end exponent end fraction fraction numerator V 1 over denominator V subscript 2 end fraction equals 4 over 1 fraction numerator K E subscript 1 over denominator K E subscript 2 end fraction equals fraction numerator m subscript 1 V subscript 1 squared over denominator m subscript 2 V subscript 2 squared end fraction fraction numerator K E subscript 1 over denominator K E subscript 2 end fraction equals fraction numerator 1 cross times 4 squared over denominator 4 cross times 1 squared end fraction fraction numerator K E subscript 1 over denominator K E subscript 2 end fraction equals 4 over 1
Answered by Utkarsh Lokhande | 01 Oct, 2020, 21:12: PM
Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 9 - Science
force of 100N acting on a certain mass for 4sec give it a velocity of 20m/sec square find the mass of body if a body a initially
Asked by adityapasi.com | 25 Jul, 2024, 21:22: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Science
a body is moving in a circle of radius 7m with a time period 4s it's speed is
Asked by suranjitabhusagar | 24 Jul, 2024, 20:09: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Science
a body is moving in a circle of radius 'r' ,covers 3/4 th of the circle. find the ratio of the distance to displacement.
Asked by awantika29july2010 | 16 Jul, 2024, 19:07: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Science
a train starting from rest attains a velocity of 72km/hr in 5min.assuming that the acceleration is uniform,find(i)the acceleration and (ii) the distance traveled by the train for attaining this velocity.
Asked by chitra.thulasiram | 07 Jul, 2024, 11:06: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Science
an object has moved through a distance can it have zero displacement with example
Asked by artibatham80 | 29 Jun, 2024, 19:18: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Science
the linear speed of the seconds hand of a wall clock is 1.05 CM/ s. what will be the length of the seconds hand
Asked by vijaylakshmitamilraj | 29 Jun, 2024, 05:56: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Science
a person enters into a circular park of radius r and moves on the circular path for t minutes and reaches at starting point. the angular displacement of the person
Asked by vijaylakshmitamilraj | 28 Jun, 2024, 21:33: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Science
An athlete completes one round of a circular track of diameter 200 meters in 40 seconds. What will be the distance covered in the displacement at the end of 2 minutes and 20 seconds?
Asked by SIVESH.DASH | 24 Jun, 2024, 18:22: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Science
3rd assertion
question image
Asked by ssdpk2425 | 12 Jun, 2024, 23:39: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Science
percent composition
Asked by pullahoneyo25 | 12 Jun, 2024, 18:13: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Are You a Teacher or a Parent Seeking Customised Tests? Click here
×