Object orbiting the earth at a height above the ground

Assignment Help Physics

Reference no: EM13660766

1) What is the escape velocity (in m/s) for an object orbiting the Earth at a height above the ground of 6.9E6 m?

2) A pitcher throws a 0.145-kg baseball to a batter at 36 m/s. The batter hits the ball straight back at the pitcher at 49 m/s. The amount of time that the bat and ball are in contact is 9.0E-3s. What is the force (in N, assumed to be constant) among the ball and bat?

Reference no: EM13660766

Questions Cloud

Film to look dark in reflected light : A soap fil (n=1.33) is 465 nm thick and lies on a glass plate (n=1.52). Sunlight, whose wavelengths (in vacuum) extend from 380 to 750 nm, travels during air and strikes the film perpendicularly.

How many stations can operate in the broadcast band : The range of wavelengths allotted to the radio broadcast band is from about 150 m to 630 m. If each station needs exclusive utilize of a frequency band 10 kHz wide, how many stations can operate in the broadcast band?

How much liquid nitrogen boils away as the washer cools : In a physics lab, a student accidentally drops a 21.0-g brass washer into an open Dewar of liquid nitrogen at 77.2 K. How much liquid nitrogen boils away as the washer cools from 291 K to 77.2 K? The latent heat of vaporization for nitrogen is 199.1 ..

Magnitude of momentum impulse that the ball gave the wall : A tennis ball of mass m = 0.060 kg and speed v = 25 m/s strikes a wall at a 45-degree angle. It rebounds with the similar speed, once again at a 45-degree angle. What is the magnitude of the momentum impulse (in Ns) that the ball gave the wall?

Object orbiting the earth at a height above the ground : A pitcher throws a 0.145-kg baseball to a batter at 36 m/s. The batter hits the ball straight back at the pitcher at 49 m/s. The amount of time that the bat and ball are in contact is 9.0E-3s. What is the force (in N, assumed to be constant) among th..

What is the escape velocity from the sun : At low speed, air resistance is a force proportional to the velocity v of an object: F = -kv. Is this force conservative? What is the escape velocity (in m/s) from the Sun (M =2.0E30 kg) of an object that is a distance 9.1E7 km from the center of the..

What is the minimum luminous flux the lights should deliver : A public school law requires a minimum illumination of 160 lx on the surface of all students’ desk. If the lights are 2.0 m above the desks, what is the minimum luminous flux the lights should deliver?

What is the pressure change in water problem : What is the pressure change in water going from a 3.0- cm-diameter pipe to a 2.1- cm-diameter pipe if the velocity in the smaller pipe is 6.5 m/s?

What is the fundamental frequency of this pipe : A particular organ pipe can resonate at 264 Hz, 440 Hz, and 616 Hz, however not at any other frequencies between 264 and 616 Hz. (a) Is this an open or closed pipe? (b) What is the fundamental frequency of this pipe?

User Account

All Pages