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1) On a horizontal frictionless surface, a block of mass M is sliding along on constant velocity v. A block of mass m lands on top of the original block. What is the velocity of the new system (M+m)?
A 0.954-kg toy car is powered by three D cells (4.50 V total) connected directly to a small DC motor. What is the average current supplied to the car\'s motor
A driver traveling at 59 km/h sees a chicken dash out onto the road and slams on the brakes. Accelerating at -7 m/s2, the car stops just in time 24.3 m down the road. What was the driver's reaction time (i.e., the time that elapsed before he engag..
A large tub is filled to a depth of 50.0 cm with fresh water. Then oil of density 750.0 kg/m3 is poured onto the water. What is the depth of the oil layer
What would the bank angle be for a circular racetrack with radius 120 m so that a car can go around the curve safely at a maximum of 21 m/s
A galvanometer with a coil resistance of 11.0 and the full-scale current of 0.150 mA is used with a shunt resistor to make an ammeter. The ammeter registers the maximum current of 4.00 mA. Find the equivalent resistance of the ammeter.
A rocket has an initial mass of 28,000 kg, of which 20 percent is the payload. It burns fuel at a rate of 185 kg/s and exhausts its gas at a relative speed of 1.8 km/s.
Two forces are acting on a 0.250-kg hockey puck as it slides along the ice. what will be the magnitude and direction of the puck\'s acceleration
An airplane flying at a distance of 10 km from a radio transmitter receives a signal of intensity 8.4 ?W/m2. what is the transmission power
A small 0.280-kg object moves on a frictionless horizontal table in a circular path of radius 4.30 m. The angular speed is 8.02 rad/s.what is the radius of the smallest possible circle on which the object can move
A 0.658-nm photon collides with a stationary electron. After the collision, Find the momentum of the electron
An airplane with a speed of 89.1 m/s is climbing upward at an angle of 48.4 ° with respect to the horizontal. determine the angle of the velocity vector of the package just before impact
Randomly polarized light of intensity I0 is passed through two polarizers whose transmission axes differ by 45 degrees. What is the intensity of the light
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