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Q. A satellite has a mass of 6448 kg and is in a circular orbit 4.83 × 105 m above the surface of a planet. The period of the orbit is 2.4 hours. The radius of the planet is 4.41 × 106 m. What would be the true weight of the satellite if it were at rest on the planet's surface?
Q. A 2-kg ball traveling to the right with a speed of 4 m/s collides with a 4-kg ball traveling to the left with a speed of 2 m/s. The total momentum of the two balls after the collision is what?
A car is parked on a steep incline, making an angle of 37.0° below the horizontal and overlooking the ocean, when its brakes fail and it begins to roll. Starting from rest at t = 0, the car rolls down the incline with a constant acceleration of 3...
A fully loaded station wagon has a mass of 1690 kg. If each of its four tires is inflated to a gauge pressure of 211 kPa, what is the total tire area in contact with road.
For a real train the friction between the car and the track can be described by a friction coefficient, μ. Find out this coefficient assuming that the time it takes for the car to come to rest is 3 s.
Assume that plane continues to fly with the similar velocity
What is the kinetic energy of a 0.5-kg object moving at a constant speed of 2 m/s?
A 1500 {rm kg} wrecking ball hangs from a 20 {rm m} long cable. The ball is pulled back until the cable makes the angle of 17.0^circ with vertical.
The drawing shows one horizontal wire with the current going up and one vertical wire with the current going to the right. Point A is dH to the right and dV above the intersection. Point B is dH to the left and dV below the intersection.
A speedboat starts from rest and accelerates at +2.01 m/s2 for 6.95 s. At the end of this time, the boat continues for the additional 5.70 s with an acceleration of +0.518 m/s2. Following this, the boat accelerates at -1.49 m/s2 for 8.20 s.
There are four coils of wire being used as electromagnets. They all have the equal size and are made up of the same material but have a different number of loops.
When a potential difference of 166 V is applied to the plates of a parallel-plate capacitor, the plates carry a surface charge density of 32.0 nC/cm2. What is the spacing between plates.
Two blocks are connected by a string. The smooth inclined surface makes an angle of 35 degrees with the horizontal, and the block on the incline has a mass of 5.70 kg. The mass of the hanging block is m= 2.90 kg. Find the direction of the hanging blo..
The cubit is an ancient unit. Its length equals six palms. (A palm varies from 2.50 to 3.50 inches depending on the individual.) We are told Noah's ark was 300 cubits long, 50 cubits wide and 30 cubits high.
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