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Q1. An object hangs from a spring balance. The balance indicates 40 N in air and 30 N when the object is submerged in water. What does the balance indicate while the object is submersed in a liquid with a density that is half that of water?
Q2. The electric field in a region of space is oriented along the positive y axis. A circle of radius R is placed in xz-plane. The flux of the electric field by this circle is Φ. The same electric field passing through a second circle of radius 2R parallel to xz-plane would result in a flux equal to.
A Boeing 747 "Jumbo Jet" has a length of 59.7 m. The runway on which the plane lands intersects another runway, How much time is needed for the plane to clear the intersection
A 4 kg model rocket is launched, expelling 40.00 g of burned fuel from its exhaust at a speed of 550m/s. What is the velocity of the rocket after fuel has burned? Hint: Ignore the external forces of gravity and air resistance.
If someone is running in a 100m race and you want to work out the distance the sprinter has run what part of the sprinters body do you measure from the foot head or arm
compare with the force of gravitational attraction between them.Find the position of the particle after this time.
A 0.037 kg aluminum bullet traveling at 460 m/s strikes an armor plate and comes to a stop. what is the bullet's temperature change in degrees Celsius
Mitch is sitting at rest on a wheeled chair in a long hallway. Mitch and the chair have a combined weight of 540 N. how far will Mitch travel after catching the ball
A bungee cord is stretched between two poles with a force of 357 N. What is the velocity of a wave on this bungee cord
The intersection is 15 m wide. Her car's maximum deceleration is -5.20 m/s2, whereas it can accelerate from 44km/h to 70km/h in 7.8 s. overlook lengths of her car and her reaction time.
Ions having equal charges but masses of M and 2M are accelerated through the same potential difference, what is the radius of the arc followed by the lighter
A 250 g plastic ball is fired from a 4.0 kg toy cannon on wheels. After being fired, the cannonball above the ground at 24 m/s. Determine the final velocity of the cannon
then collides with a spring whose spring constant is 250 N/m. angle is 30 degrees. Illustrate what is the maximum compression of the spring?
An athlete starts at point A and runs at a constant speed of 6m/s around a round track 100 m in diameter, what is x component of this runner's average velocity between points A and B.
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