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At its highest temperature, a space heater has a resistance of 19.5 %u03A9 when it is plugged into a wall outlet supplying a peak voltage of 176.8 V sinusoidally at 60 Hz. What is the average power
A series RL circuit includes a 5.05-V battery, a resistance of R = 0.755 %u03A9, and an inductance of L = 2.65 H. What is the induced emf 1.43 s after the circuit has been closed?
A massless rope connects two blocks (2.00 and 4.00 kg) over a 12.0 diameter, 2.00 kg pulley if the 4.00 kg block is 1.00 m above the surface what is the linear acceleration of the blocks when releas
The blades in a blender rotate at a rate of 6540 rpm. When the motor is turned off during operation, the blades slow to rest in 3.66 s. What is the angular acceleration as the blades slow down?
A 20 kg satellite has a circular orbit with a period of 2.7 h and a radius of 8.1 x 106 m around a planet of unknown mass. If the magnitude of the gravitational acceleration on the surface of the pla
Suppose that with its air sacs collapsed, a fish has a density of 1.19 g/cm3. To what fraction of its expanded body volume must the fish inflate the air sacs to reduce its density to that of water?
Find the pressure increase in the fluid in a syringe when a nurse applies a force of 42 N to the syringe's circular piston, which has a radius of 1.1cm.
Three liquids that will not mix are poured into a cylindrical container. The volumes and densities of the liquids are 0.45 L, 2.6 g/cm3; 0.30 L, 1.0 g/cm3; and 0.40 L, 0.95 g/cm3. What is the force
When one mirror of a Michelson interferometer is moved a distance of 0.5 mm, 2000 fringes are observed, Find the wavelength of the light used. Please explain step by step.
A simple open U-tube contains mercury. When 5.9 cm of water is poured into the right arm of the tube, how high above its initial level does the mercury rise in the left arm?
Crew members attempt to escape from a damaged submarine 70 m below the surface. What force must they apply to a pop-out hatch, which is1.0 m by 0.70 m, to push it out at that depth? Assume that the
If the probe is to achieve a maximum distance of 8.0 multiplied by 106 m from the center of Zero, with what initial kinetic energy must it be launched from the surface of Zero?
What is the escape speed on a spherical asteroid whose radius is 510 km and whose gravitational acceleration at the surface is 2.9 m/s2?
A thief stole a box with valuable article of weight ‘W' and jumped down a wall of height h. Before he reaches, what would be the load that he would experience?
It moon's radius is 1600 Km and "g" on its surface is found to be 1.6 m/s. Find the escape velocity on the moon provided air friction is negligible.
A small weight hangs from a string attached to the rearview mirror of a car accelerating at the rate of 1.11 m/s2. What angle does the string make with the vertical?
A body of 2kg is suspended from the ceiling of an elecator moving up with an accelration "g". Find the apparant weight of body in the elevator? Need detailed.
A scaffold of mass 61 kg and length 6.5 m is supported in a horizontal position by a vertical cable at each end. A window washer of mass 79 kg stands at a point 1.2 m from one end.
If 23.6 g of gold is deposited on the negative electrode of an electrolytic cell in a period of 2.99 hours, then what is the current through the cell during this period? (Assume that the gold ions c
A force of 20 N is applied at the edge of a wheel of radius 40 cm. Find the torque acting on the wheel?
Sound produced at a point is heard by a person after 5 second, while the same sound is heard by another person after 6 seconds. If the speed of sound is 300 m/s, what could be the maximum and minim