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The position of a 300 object is given (in meters) by 5t^3-7.9t^2-45t , where t is in seconds. I need to find:
A) What is the average net power input during the interval from t=0s to t=1.9s?
B) What is the average net power input during the interval from t=1.9s to t=4.1s?
A 1.80 m length of wire is held in an east-west direction and moves horizontally to the north with a speed of 15.3 m/s. The vertical component of Earth's magnetic field in this region is 40.0 µT directed downward. Calculate the induced emf between th..
a 600kg car is going over a curve with radius of 120m that is banked at an angle 25 degree with a speed 30m/s. what is the normal force exerted by the road on the car
You place your lunch leftovers in the refrigerator. Suppose the refrigerator needs to remove 1.5060E+4 J of thermal energy from your lunch to cool it to the temperature of the inside of the refrigerator, What is the total work done by the compresso..
A 0.700-kg ball is on the end of a rope that is 2.40 m in length. The ball and rope are attached to a pole and the entire apparatus, What is the tangential speed of the ball
The security alarm on a parked car goes off and produces a frequency of 1190 Hz. At what speed are you driving
a. What star has the coolest surface temperature b. Which star has the hottest surface temperature c. What is the approximate range of radii of stars in the main sequence compared to the size of the sun
An object weighs 277 N in the air. When tied to a string, connected to a balance, and immersed in water, it weighs 221 N. When it is immersed in oil, it weighs 257 N.
Use work and energy to calculate the stopping force on an egg ( we will model it as an spherical object) that is dropped form a height of 2m
llustrate what actions would you recommend to Carlos Fernandez to help Grupo Modelo sustain or improve its competitive position, especially its international operations and its long-term financial performance?
a 6.00 kg bowling ball is rolling at 9.00 m/s. It collides with a 1.50 kg bowling pin at rest. What is the velocity of the ball after the collision
trumpet creates a sound intensity level of 1.23 x 10^2 dB at a distance of 0.80 m. What is the sound intensity of a trumpet
Use the strength of the magnetic field at the Earth's surface (4 x 10-5 T) to estimate the strength in the Van Allen belts
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