Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
A 48.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 1.44 102 m/s from the top of a cliff 152 m above level ground, where the ground is taken to be y = 0.
(a) What is the initial total mechanical energy of the projectile?
J
(b) Suppose the projectile is traveling 102.1 m/s at its maximum height of y = 368 m. How much work has been done on the projectile by air friction?
(c) What is the speed of the projectile immediately before it hits the ground if air friction does one and a half times as much work on the projectile when it is going down as it did when it was going up?
m/s
To test the deflection of the uniform 200-lb beam the 121-lb boy exerts a pull of 36 lb on the rope rigged. Calculate the force supported by the pin at the hinge O.
A student wants to find out the speed of a high-speed projectile, but doesn't have a high-speed measuring device. what is the speed of the projectile just before the collision
Suppose a ski-jumper lands at a point 63 m down an incline of 35 degrees, What was her speed at take-off
A 500-g block is released from rest and slides down a frictionless track that begins 2.00 m above the horizontal. At the bottom of the track, What is the velocity of the mass just before it strikes the spring
An RL series circuit has R= 78.0? and L= 2.00mH. The series combination is connected across a 165V(rms), 65Hz power supply. Find the impedance of the RLcombination
A dolphin located in seawater at a temperature of 25 °C emits a sound directed toward the bottom of the ocean 200m below. How much time passes before it hears an echo.
A baseball is thrown at an angle of 27 degrees relative to the ground at a speed of 20.9m/s. The ball is caught 36.0231m from the thrower. The acceleration due to gravity is 9.81m/s square. Explain how long is it in the air ?
A shot-putter accelerates a 7.28 kg shot from rest to 14.8 m/s. If this motion takes 1.31 s, what average power was developed
Consider two masses (M=50 kg, m = 10 kg) connected by a string as shown below. Find the tension in the connecting string
Calculate the length of the transmitter antennain order for it to be exactly one half the wavelength of this transmission frequency
If the loop's diameter changes from 24.0cm to 5.8cm in 0.67s , what is the direction of the induced current, If the coil resistance is 2.6? , what is the average induced current
What is the gravitational potential energy of an interstellar cloud, with a density of 1000 H2 molecules/cm3, and radius of 10 pc
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd