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Q. A 150 g ball and a 220 g ball are connected by a 36{rm cm}-long, mass less, rigid rod. The balls rotate about their center of mass at 130 rpm. What is the speed of the 150 g ball?
Q. A 29 g bullet is fired straight upward into at rest 1.40kg block and the bullet is embedded in the block. The velocity of the bullet is 510 m/s. Show the conservation of mechanical energy and conservation of momentum are inconsistent before and after the collision and resolve the inconsistency.
Which statement is true concerning the magnitude of the net force on the plane.
A vertical electric field of magnitude 2.00 × 104 N/C exists above the Earth's surface on a day when a thunderstorm is brewing. A car with a rectangular size of 6.00 m by 3.00 m is traveling along a roadway sloping downward at 10.0°. find the elec..
A person lifts a 950N box by pushing it up an incline. If the person exerts a force of 350N along the incline, what is the mechanical advantage of incline.
A chocolate bar (40grams) has 210 Calories. Approximately how long would the 100 watt light bulb shine if we convert all the chocolate's energy into electricity (100% efficiently)? (Remember 1Cal = 1000 cal = 4200 joules)
What are the x and y components of the shell. What is the acceleration of the two blocks, in meters per second squared.
In a common but dangerous prank, a chair is pulled away as a person is moving downward to sit on it, causing the victim to land hard on the floor.
Find out an effective coefficient of kinetic friction
A power station with an efficiency of 0.5 generates 10^8W of electric power and dissipates 1.00 x10^8 W of thermal energy to the cooling water that flows through it.
Somewhere between the Earth and the moon, gravity from these two bodies on the space pod would cancel. Is this location nearer the Earth, the moon, or in the middle (having the same distance between) of the earth and the moon.
What is the magnitude of net force causing the acceleration.
W hat is balls initial speed
An ideal gas is expanded isothermally from 20L to 30L. During thismethod , 6J of energy is expended by the external mechanism that expanded the gas. Which of the statements is correct.
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