# Posts by Bird

Total # Posts: 19

**math**

Renting a truck costs $55.00 per day and $0.38 per mile when the driver goes beyond the 40 free miles allotted. How much would Samantha pay when renting the truck for 2 days and driving a total of 94 miles?

**Math**

Calvin and Brain drive at a speed of 70 km/h and 80 km/h respectively. Calvin sets off from City A. Brain sets off from City B. The distance between the City A and City B is 300 km. If they set off at the same time towards each others, when will they meet?

**Chemistry**

How much heat is required to raise the temperature of 53.5g of water from its melting point to its boiling point?

**RPCC**

a sample gas has a volume of 200 cubic cm at 25 C and 700 mmHG. If the pressure is reduced to 280 mmHg, what volume would the gas occupy at the same temperature?

**Spanish**

64. c 65. b 66. a 67. c 68. d 69. a However, if question is asking for the opposite the answer is b

**physics**

A proton (mass=1.67*10^-27 kg) moves with a velocity of 6.00*10^6 m/sec. Upon colliding with a stationary particle of unknown mass, the proton rebounds upon its own path with a velocity of 4.00*10^6 m/sec. The collision sends the unknown particle forward with a velocety of 2....

**physics**

A proton (mass=1.67*10^-27 kg) moves with a velocity of 6.00*10^6 m/sec. Upon colliding with a stationary particle of unknown mass, the proton rebounds upon its own path with a velocity of 4.00*10^6 m/sec. The collision sends the unknown particle forward with a velocety of 2....

**Physics**

a 20kg box is pulled across ahorizontal surface with aforce of 100nt. The coefficient of friction is .3 (a) find the acceleration. (b) how far will the box move in 5 sec. (c) What is the velocity at this time?

**physics**

An automobile weighing 15000n crashes into a wall with a velocity of 5m/sec. If the car moves .15m before coming to a stop, what average force does the car exert? on the wall?

**physics**

A crank .25m long turns a shaft with a diameter of 3cm around which part of a rope is wound. One end of the rope hangs free and supports a weight of 4200nt. (a) What torque does the weight exert on the shaft? (b) WHat torque must be exerted on the crank to keep the system in ...

**physics**

THe steering wheel of a car has a diameter of 60cm and turns a shaft 4cm in diameter (a) If a 90nt force is needed to turn the wheel, what torque is exerted on the wheel? (b) What force is applied tangentially to the surface of the shaft?

**Physics**

A crank .25 long turns a shaft with a diameter of 3cm around which part of a rope is wound. One end of the rope hongs free and supports a weight of 4200nt. (a) What torque does the weight exert on the shaft? (b) What torque must be excerted on the crank to keep the system in ...

**physics**

A tapering wooden telegraph pole is 15ft long and its center of gravity is 6ft from one end. It weighs 400lbs. What force is required to lift each end?

**physics**

A suspension bridge supported by a cable 100ft long has a sag of 10ft at its center. If the bridge has a weight of 20,000 lbs and its center of mass is the center of the bridge, what is the tension on the cable?

**6th grade math**

Light travels about 1 mile in 0.000005 seconds. if a spacecraft could travel at this speed, it would travel almost 10*6 miles in 5 seconds. About how far would this spacecraft travel in 50 seconds?

**Physics**

If you are 2.0 s from being directly under a window that is 11 m above the sidewalk your standing on, and someone throws a water ballon will you get hit?

**Physics**

Whatis the volume of a piece of iron (p= 7.9g/ cm cubed) that has a mass of 0.50kg?

**CJS 240**

that people need to get more involved

**english**

yes

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