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A water balloon is fired at 34.0 m/s from a water cannon, which is aimed at an angle of 18° above the ground. The centre of the cannon's target (which has a radius of 1.0 m) is painted on the asphalt 42.0 m away from the water cannon. Will the balloon hit the target? Justify your response with calculations that indicate where the water balloon will land and make one suggestion about how to adjust the water cannon so that the water balloon will hit the target.
what mass of water at 27.0 degc must be allowed to come to thermal equilibrium with a 1.59-kg cube of aluminum
A neutron turns into a proton and an electron. The electron goes in one direction and the proton goes in the opposite direction. find the maximum separation distance of the two particles
A copper ball with a radius of 1.6cm is heated until its diameter has increased by 0.17mm. find the final temperature of the ball.
What is the distance of closest approach where the electrostatic potential energy is equal to the initial kinetic energy? Express results in femtometers (10^-15 meter).
In lab, your instructor generates a standing wave using a thin string of length L = 2.10m fixed at both ends. What is the maximum transverse speed vy of the bead
A 1.80 m tall man lifts a 2.00 kilogram book from the ground therefore it is 2.40 meter above the ground. Find the potential energy of the book relative to the top of the man's head
Find the mass m in grams. Warning: Be careful with the units! Express your result to three significant digits.
A 80-g bullet is fired from a rifle having a barrel 0.582 m long. Choose the origin to be at the location where the bullet begins to move. Then the force (in newtons) exerted by the expanding gas on the bullet is 14100 + 9100x - 24250x2, where x is i..
An electronics assembly firm buys its microchips from three different suppliers; half of them are bought from firm X , whilst firms Y and Z supply 30% and 20%, respectively.
When a 2.10-kg object is hungvertically on a certain light spring described by Hooke's law, the spring stretches 2.84 cm. What is the force constant of the spring?
An 854 kg (1887 lb) dragster, starting from rest, attains a speed of 27.1 m/s (60.7 mph) in 0.59 s.
What is meant by doping Silicon and how does this make a material a semi-conductor. Explain how the material is used as a switch in a transistor.
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