
You're driving down the highway late one night at 19 {\rm m}/{\rm s} when a deer steps onto the road 44 {\rm m} in front of you. Your reaction time before stepping on the brakes is 0.50 {\rm s}, and the maximum deceleration of your car is 11 {\rm m/s^2} .

An electron of mass 9.11 1031 kg has an initial speed of 3.06 105 m/s. It travels in a straight line, and its speed increases to 7.63 105 m/s in a distance of 4.70 cm. Assume its acceleration is constant.

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Joe has a ring weighing 19 grams made of an alloy of 15 silver and the rest gold. He decides to melt down the rings and add enough silver to reduce the gold content to 69 . How many grams of silver should he add?

A woman is running at a constant velocity of 5 m/s in an attempt to catch a stopped bus 11m ahead of her. However, it pulls away from her with a constant acceleration of 1m/s2. How much time does it take her to reach the bus if she keeps running at the same velocity?

The plane is landing on a naval aircraft carrier that is 0.80 km long. What distance does the plane require to land? Answer in units of k

a 5.5 kg dog stands on a 16 kg flatboat at distance D = 6.1 m from the shore. It walks 2.8 m along the boat toward shore and then stops. Assuming no friction between the boat and the water, find how far the dog is then from the shore.

A 70kg driver gets into an empty taptap to start the day's work. The springs compress 2.5 10^ 2 . What is the effective spring constant of the spring system in the taptap?

A fire hose held near the ground shoots water at a speed of 7.8 m/s. Figure 333 At what angles should the nozzle point in order that the water land 2.0 m away (Fig. 333)? smaller angle 1 larger angle 2

a box with a mass of 0.5kg is moving in inclined plane with a constant speed caused by a force of 12n. Find the coefficient kinetic friction. the degree is 120
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 The Earth’s rate of rotation is constantly decreasing, causing the day to increase in duration. In the year 2000 the Earth takes about 0.548 s longer to complete 365 revolutions than it did in the year 1900.
 (a) What is the average angular acceleration of the Earth?
 (b) If this average acceleration remains constant, in what year will the Earths rotation come to rest?
1. Can you show me step by step how to solve this problem?:
 A spherical balloon is made from a material whose mass is 3.00kg. The thickness of the material is negligible compared to the 1.5m radius of the balloon. The balloon is filled with helium (He) at a temperature of 305degrees K and just floats in the air, neither rising nor falling. The density of the surrounding air is 1.19kg/m^3. Find the absolute pressure of the helium gas
2. I do not understand this Ideal Gas Law and Kinetic Theory question. Can you help me set it up?
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