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You are watering your lawn with a hose when you put your finger over the hose opening to increase the distance the water reaches. If you are pointing the hose at the same angle, and the distance the water reaches increase by a factor of 4, what fraction of the hose opening did you block?
a recipe for bread states that the dough must bake for 40 minutes at a temperature of 190degc. the oven you are using
The centers of a 8.00kg lead ball and a 150g lead ball are separated by 8.00cm. What gravitational force does each exert on the other
Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 12.0 m/s at an angle 47.0 degrees, obtain the maximum height the ball goes above the ground
A diatomic gas does 320 J of work and also absorbs 600 cal of heat. What is the change in internal energy of the gas?
A uniform plank, 10.0 m long and weighing 200 N, is supported horizontally by a brick at one end and an egg at the other. What is the force exerted on the plank by the brick
question1a 23-g bullet travelling 285ms penetrates a 4.5kg block of wood and emerges cleanly at 230ms. if block is
A weightlifter's barbell consists of two 15-kg masses on the ends of a 20-kg rod 1.6 m long. find the magnitude of the barbell's angular momentum
You drop a 297-g silver figure of a polar bear into the 203-g aluminum cup of a well-insulated calorimeter containing 257 g of liquid water at 21.7°C. What is the final temperature of the water, cup, and bear
What is its initial velocity as it leaves the ground. Two particles are fixed on an x axis.
A 13.5-g bullet is fired into a block of wood at 253 m/s. The block is attached to a spring that has a spring constant of 205 N/m. determine the mass of the wooden block
each of two small spheres is positively charged the combined charge totals 60.0 nc. what is the charge on each sphere
The first atomic bomb released energy equivalent to20 kilotons of TNT. If 1 ton of TNT releases 4x109 J, how much uranium was consumed through fission in the bomb
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