Weight is a measure of the force of gravity acting on an object. According to Newton’s laws of motion, force is directly proportional to both mass and acceleration, and the equation for force is F=m*a, where m is mass and a is acceleration. We can use this equation to solve for weight.
A ball is thrown in the air. gravity is accelerating the ball downward while it still travels upwards
The blast made by the vessel's driver is telling you that he intends to pass by your left side. If you agree with his intention, you will respond by sounding one short blast in return. If you are not in agreement with this move or you do not really understand the intention of the driver, you will give the danger signal which is five short rapid blasts.
Answer:
By replacing your home's five most frequently used light fixtures or bulbs with models that have earned the ENERGY STAR, you can save $75 each year.
Compared to traditional incandescents, energy-efficient lightbulbs such as halogen incandescents, compact fluorescent lamps (CFLs), and light emitting diodes (LEDs) have the following advantages:
Typically use about 25%-80% less energy than traditional incandescents, saving you money
Can last 3-25 times longer.
Answer: The speed of the edge of the wheel = 19.72m/s
Explanation:
The liner speed of the edge of the wheel is given as;
V=wr
V= linear speed =?
w= angular velocity =456rpm
Converting rpm to rad/s
1rpm = π/30 rad/s
456rpm = 47.75 rad/s
r=0.413m
V=47.75 × 0.413
V= 19.72m/s
Therefore speed of the edge of the wheel = 19.72m/s
