physics
A partical is projected vertically upward with speed 20 m/s. What will be the time after particle is at a height 15m above the ground( g=15 m/s*s)
physics
A non stop bus goes from one station to another at a speed of 54 km/h. The bus returns from the second station to first station at a speed of 36 km/h. Find the average speed of the bus.
geometry
find the equation to the plane through the point (-1,3,2) and perpendicular to the plane (x+2y+2z=5) and (3x+3y+2z=8)
math
first of all multiply 11 by 3 we get 33 now we add 1 to 33 , we get 34 so the result is - 34 / 3 the negative sign is with the whole term so it will remain with the whole fraction
physics
2.5 kg rifle fires a 20 g bullet at 400 m/s. Find magnitude of the recoil velocity of the rifle.
physics
Star Z has 1/5 the radius of Earth and 1000 times the Earth's mass. If a mass weighs 1.0 N on Earth, what does it weight on Star Z? Thank you.
physics
A chain of length l and mass ë per unit length is fully open and is held on a high frictionless table with y1 of its length hanging from the side of the table as shown in figure. When released, it starts slipping off the table. By calculating the speed of the chain as it ...
physics
A small stone of mass m is stuck on the periphery of a wheel of radius R rolling along the x-axis with a constant speed v. The centre of the wheel was at x = 0 at time t = 0, and stone was on the ground at that time. Find the angular momentum of the stone and its rate of chang...
social studies
1-b,2-c,3-c,4-d, 5-a, 6-b, 7-a
biology-multiple choice question
3
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