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It has been claimed that an insect called the froghopper (Philaenus spumarius) is the best jumper in the animal kingdom. This insect can accelerate at 4,000 m/s2 over a distance of 2.0 mm as it straightens its specially designed "jumping legs." Assuming a uniform acceleration, answer the following.
(a) What is the velocity of the insect after it has accelerated through this short distance? (Enter the magnitude of the velocity.)
(b) How long did it take to reach that velocity?
(c) How high would the insect jump if air resistance could be ignored? Note that the actual height obtained is about 0.7 m, so air resistance is important here.
A mass-spring system with a natural frequency of 4.4 Hz is started in motion with an initial displacement from equilibrium of 5.7 cm, What is the amplitude of the resulting motion
Suppose a Proton is accelerated through a potential difference of 10 Gigavolts. Determine the proton's final kinetic energy
What is the rate of change entropy of the first reservoir.
A converging lens of focal length 7.550cm is 20.5cm to the left of a diverging lens of focal length -6.50cm, find the location of the coins final image
A uniform disk of radius 0.463 m and unknown mass is constrained to rotate about a perpendicular axis through its center. Find the mass of the disk
A rescue helicopter lifts a 70.8-kg person straight up by means of a cable. What is the tension in the cable
A microwave oven of mass 12.5kg is pushed a distance 8.00m up the sloping surface of a loading ramp inclined at an angle of 36.2? above the horizontal, What is the work done on the oven by the force
An object is launched with an initial velocity of 8.0 m/s to the horizontal from 327cm above the ground level. What is the final speed of the object
The discovery of a star orbiting the center of our galaxy with a 15-year period has led to the finding, calculate the semimajor axis of the star's orbit
A person jumps up and down on a trampoline, while staying in contact with it. The motion is simple harmonic motion and it takes 1.90s to complete one cycle.
Assume the charge on black hole is 5740 C. At what distance from it is the electric potential equal to 1100 V.
Four equal charges of +2.5×10-6 C are placed on the corners of one face of a cube of edge length 15.0 cm. A charge of -2.5×10-6 C is placed at the center of the cube. What is the magnitude of the force on the charge at the center of the cube?
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