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A block is hung by a string from the inside roof of a van. When the van goes straight ahead at a speed of 22.6 m/s, the block hangs vertically down. But when the van maintains this same speed around an unbanked curve (radius = 138 m), the block swings toward the outside of the curve. Then the string makes an angle θ with the vertical. Find θ.
Find a temperature at which they are the same length. The coefficient of expansion of iron is 11 E -6 per C degree.
A 2.1-m nylon fishing line used to hold up a 6.0-kg fish has a diameter of 1.8mm, How much is the line elongated
What is tension in each of the cables
The figure below shows a circuit with a battery and 3resistors. The resistors have values of 4 Ω, 3Ω and6Ω as shown. The battery is 18 V. Calculate the equivalent resistance of the combination of resistors and the current in each resistor, the cu..
Three carts of masses Three carts of masses m1=6.0 kg, m2=12.0 kg, and m3=5.0 kg move on africtionless horizontal track with speeds of v1 =5.0 m/s, v2 =3.0 m/s, and v3 =-4.0 m/s,as shown in Figure . The carts stick together after colliding. Find t..
Asteroid 433 Eros is one of the largest near-Earth asteroids. Forpurposes of this problem, assume it is spherical. What is the raidus of Eros
Determine what average power in watts needed to raise an 87 kilogram object 5 meters in a time of 12 seconds
A blue car with mass mc = 449 kg is moving east with a speed of vc = 18 m/s and collides with a purple truck with mass mt = 1225 kg that is moving south with a speed of vt = 13 m/s. find the magnitude of the initial momentum of the car
a long solenoid has 100 turnscm and carries current i. an electron moves within the solenoid in a circle of radius 2.28
A wheel rotates with a fix angular acceleration of 3.80 rad/s^2. Determine the angle in which the speed rotates between t=2.00 sec and t=3.60 sec
Two parallel wires spaced a distance d apart experience an attractive force per unit length of 1.00e-4 N/m. what is the distance d
a 200-m-wide river flows due east at a uniform speed of 4.8 ms. a boat with a speed of 8.6 ms relative to the water
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