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Two ships are moving along a line due east (see figure below). The trailing vessel has a speed relative to a land-based observation point of v1 = 59.5 km/h, and the leading ship has a speed of v2 = 45.0 km/h relative to the point. The two ships are in a region of the ocean where the current is moving uniformly due west at vcurrent = 13.9 km/h. The trailing ship transmits a sonar signal at a frequency of 1,200.0 Hz through the water. What frequency is monitored by the leading ship?
____Hz
an rms voltage of 80v are connected in series. Calculate the TOTAL voltage of this series combination
A tennis player places a 40 kg ball machine on a frictionless surface, as shown below. The machine fires a 0.052 kg tennis ball horizontally with a velocity of 30.6 m/s toward the north. What will be the final velocity of the machine.
A parallel-plate capacitor is constructed using a dielectric material whose dielectric constant is 2.90, Find the minimum area of the capacitor plates
Jack is a second-grade student. He seems to have no interest in learning, frequently daydreaming in class and frequently disrupting the class by throwing objects at other students. Explain how a bio psychosocial approach may provide both an integrate..
A girl is sledding down a slope that is inclined at 30º with respect to the horizontal, The combined mass of the girl and the sled is 76.5 kg, How much time is required for the sled to travel down a 149-m slope, starting from rest
The electric potential at a certain distance from a point charge can be represented by V, What is the value of the electric potential
When his mom asked him why he is smoking he told her, "Don't worry mom, it is not that bad after all." Which term is being described in Trent's situation.
The force stretching the D string on a certain guitar is 170 N. The string's linear mass density is 0.006 kg/m, What is the speed of the waves on the string
An electron of ? = 0.999 993 moves along the axis of an evacuated tube that has a length of 2.69 m as measured by a laboratory observer S at rest relative to the tube
An electric water heater holds 165L. If electricity costs 0.18 per , how much does it cost to raise the water temperature from 10 to 60.
Four point charges are located at the corners of a square measuring 50.0 cm on each side. Three of the charges are -2.00 uC each and the fourth is -5.00 uC, Find the potential energy of the system of four charges
A motorcycle has a constant speed of 24.0 m/s as it passes over the top of a hill whose radius of curvature is 131 m. The mass of the motorcycle and driver is 348 kg.
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