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Q1. How high does a rocket have to go above the Earth's surface until its weight is 0.8 times its weight on the Earth's surface? The radius of the earth is 6.27 × 10^6 m and the acceleration of gravity is 9.8 m/s2.
Q2. Jack is a second-grade student. He seems to have no interest in learning, frequently daydreaming in class and frequently disrupting the class by throwing objects at other students. Explain how a bio psychosocial approach may provide both an integrated explanation of Jack's classroom behaviour and practical suggestions for helping Jack to cope more efficiently with the challenges he faces.
A skydiver drops from a hot air balloon floating 5000 meters above the ground. What was the average vertical speed of the skydiver
find out the magnitude of the gravitational force exerted by one on the other.
Two 10-cm-diameter charged rings face each other, What is the electric field at the center of the left ring
The equation of a transverse wave traveling along a very long string is y = 5.0 sin (0.055 ?x + 6.0 ?t), compute the amplitude of propagation of the wave
What is the distance b between the beam formed by reflection off the top surface of the glass and the beam reflected off the bottom surface of the glass
q1. consider a plane wave of monochromatic green light 600 nm that is incident normally on two identical narrow slits.
A 24 g bullet traveling at 178 m/s is fired into a 0.49 kg wooden block anchored to a 100 N/m spring. How far is the spring compressed to the nearest thousandth of a meter
A telescope has an objective with a refractive power of 1.35 diopters, What is the angular magnification of the telescope
A patients blood pressure is measured as 140 / 80, measured in level with the heart. What would you expect the blood pressure to be at the top of the head if there is a 45cm height difference in the two points. Density of blood is 100kmm-3. Give r..
One end of a cord is fixed and a small 0.550-kg object is attached to the other end, find the tangential and radial components of acceleration
A person 1.7 m tall is standing 2.50m in front of a camera. Find the magnification and the height of the image on the film
An electron is at the origin. (a) Calculate the electric potential VA at point A, x = 0.310 cm. V (b) Calculate the electric potential VB at point B, x = 0.770 cm. V What is the potential difference VB - VA
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