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A student travels 300m towards North and then 400m towards East to reach his school. Calculate the distance of his school from his home.
If a satellite orbits very near the surface of a planet with period T, derive an algebraic expression for the density (volume/ mass) of the planet. Express your answer in terms of the variable T and the gravitational constant G.
During 5 successive 0.97 min intervals, a runner moves at the following constant speeds: 0.436 km/min, 0.250 km/min, 0.160 km/min, 0.160 km/min, and 0.320 km/min. calculate the total distance traveled and the average speed.
A diver running 2.5 drives out horizontally from the edge of a vertical cliff and 2.7 later reaches the water below. How high was the cliff
A 225 gram arrow is shot vertically into the air from an initial height of 1.40 meter above the ground with an initial speed of 18.6 m/s. find the amount of mechanical energy dissipated by air friction
The Enterprise has entered a standardorbit (circular orbit 500 km above the surface)about Earth. what is the period of her orbit
If a metal wire carries a current of 23.0 mA, how long does it take for 12.0×1020 electrons to pass a given cross-sectional area anywhere along the wire? The magnitude of the charge on an electron is 1.6 × 10-19 C.
A race driver has made a pit stop to refuel. After refueling, he starts from rest and leaves the pit area with an acceleration whose magnitude is 5.3 m/s2; How much time is required for the entering car to catch up with the other car
An uncharged capacitor with C = 14.9 μF, a resistor with R = 24.3 k Omega, and a V 25.7V are connected in series, What is the charge q (in C)on the capacitor Time t = 2 time constants, after the switch is dosed?
The speed of the head of a redheaded woodpecker reaches 3.6 m/s before impact with the tree. Find the time it takes for the head to come to a stop
A diatomic gas at pressure P1= 6.0 × 105-Pa undergoes an isobaric expansion from a volume of V1= 0.99-m3 to a volumeV2= 1.9-m3, then undergoes an isovolumetric change to pressure P2= 1.1 × 105-Pa, followed by an isobaric contraction back to V1 and fi..
the electric field in a particular region of space is found to be uniform with a magnitude of 800 nc and parallel to
Falling light. According to general relativity and the equivalence principle, light is bent by gravity. Determine the time it takes for the light to strike the ground
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