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An automobile traveling 105 km/h overtakes a 1.00 km long train traveling in the same direction on a track parallel to the road.
If the train's speed is 75 km/h, how long does it take the car to pass it?
______min
How far will the car have traveled in this time?
_______ km
What are the results if the car and train are traveling in opposite directions?
_______s
Suppose a car is traveling at 14 m/s, and the driver sees a traffic light turn red. After 0.50 s has elapsed (the reaction time) the driver applies the brakes and the car decelerates at 8.0 m/s2.
A certain freely falling object requires 1.7s to travel the last 40m before it hits the ground. From what height above ground did it fall.
an oxide cathode of a vacuum tube has a work function of 2.0 eV. Calculate the electron flux (number per time per area) from thermal emission when the cathode is heated to 1000 K
if a blue filter is placed over a light source aperture so that the incident rays are blue and these rays pass through
sir dudley the dextrous is loading cannons on top of the castles tallest towers in preparation for an expected attack.
a spherical capacitor has an inner sphere of radius 12 cm and an outer sphere of radius 13 cm. the outer sphere is
The little Dutch boy saved Holland by sticking his finger in the leaking dike. If the water level was 2.5 m above his finger, estimate force of the water on his finger
The Earth can be approximated as a sphere of uniform density, rotating on its axis once a day. What is the moment of inertia of the Earth
venturi tube is a device made to measure pressure differences as the fluid (air density = 1.2kg/m^3) flows through a constriction. calculate difference in the level of mercury
A 7.80 gram bullet moving at 540 m/s penetrates a tree trunk to a depth of 6.4 centimeter. Use work and energy considerations to calculate the average frictional force that stops the bullet
A couple of astronauts agree to rendezvous in space after hours. Their plan is to let gravity bring them together. She has a mass of 60.0 kg and he a mass of 76.0 kg , and they start from rest 15.0 m apart.
A flywheel with a moment of inertia of .15 kgm2, is on a motor that puts out 2.4 Nm of torque. How many rotations will the wheel make by the time it reaches a speed of 1500 rpm
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