# phy

posted by .

(Q1)What is the orbital radius and speed of a synchronous satellite which orbits the earth once every 24h? Take G=0.0000000000667Nm2/kg2. Mass of the earth is 598000000kg (a)4200000m and 31000m/s (b)5600000m and 4300m/s (c)430000m and 5000m/s(d)3400000m and 6000m/s (Q2) A ball of mass 50g tied to the end of a 50cm inextensible string is whirled around in a vertical circle . Find the tension in the string when the ball is at the top of the circle. take g=10m/s2 (a)70.7N(b)20.4N(c)39.5N(d)96.3N (Q3)An upward force of 12000N acts on an elevator of mass20000kg.Calculate the acceleration of the elevator.Take g=9.8m/s2 (a)3.8m/ s2 doward(b)4.7m/s2 upward(c)3.8m/s2 upward(d)4.7m/s2doward

• phy -

A ball of mass 50g tied to the end of a 50cm inextensible string is whirled around in a vertical circle. find the tension in the string when the ball is at the top of the circle. Take g = 10m/s^2

## Similar Questions

1. ### force of gravity

A satellite orbits around the earth. The mass of the satellite is 1170 kg, and its altitude is 220 km. The mass of the earth is 5.98×1024 kg. The radius of the earth is 6.38×106 m. 1)What is the gravitational force on the satellite?
2. ### College Physics

A 300 kg satellite is orbiting the earth with 20,352 km/h speed. Calculate the orbital radius in km. Assume G=7*(10^-11) N.m2/kg2 and Mass of earth = 6*(10^24) kg
3. ### physics

What is the orbital radius and speed of a synchronous satellite which orbits the earth once every 24h?
4. ### phy

(Q1)At what altitude above the earth's surface would the acceleration due to gravity be 4.9m/s-2?
5. ### physics

Two satellites are orbiting the Earth in stable circular orbits. Satellite A has a mass m and is located at a distance 2r from the center of the Earth. Satellite B has a mass 2m and is located at a distance r from the center of the …
6. ### phy

A 2000 kg satellite orbits the earth at a height of 300 km. What is the speed of the satellite and its period?
7. ### phy111

What is the orbital radius and speed of a synchronous satellite which orbits the earth once every 24h?
8. ### phy111

What is the orbital radius and speed of a synchronous satellite which orbits the earth once every 24h?
9. ### physics

NASA launches a satellite into orbit at a height above the surface of the Earth equal to the Earth's mean radius. The mass of the satellite is 550 kg. (Assume the Earth's mass is 5.97 1024 kg and its radius is 6.38 106 m.) (a) How …
10. ### Physics

A satellite orbits the Earth in an orbits 750 km high. Find (*) the satellite's orbital speed and (**) period. (The mass and radius of the Earth are 5.98E + 24 kg and 6370000 m, respectively.)

More Similar Questions

Post a New Question