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Q. Suppose that a large cargo truck needs to cross a bridge. The truck is 30 m long and 3.2 m wide. The cargo exerts a force of 54,000 N. The bridge can only withstand 450 Pa of pressure. Is it safe for the truck to cross the bridge?
Q. A movie stuntwoman drops from a helicopter that is 29.0 above the ground and is moving with a constant velocity whose components are 8.00 upward and 18.0 horizontal and toward the south. You can ignore air resistance.Where on the ground (relative to the position of the helicopter when she drops) should the stuntwoman have placed the foam mats that break her fall?
A 3.40 g coin is positioned 16.0 cm from the center of a turntable. The coin has static and kinetic coefficients of friction with the turntable surface of mu_s = 0.720 and mu_k = 0.480. What is maximum angular velocity with which the turntable can sp..
W hat is crates acceleration
A 30-06 caliber hunting rifle fires a bullet of mass 0.0146 kg with the velocity of 314 m/s to the right. The rifle has a mass of 2.49 kg.
A pendulum consists of a 4.98kg mass on the end of a 0.873 m string. The mass is pulled aside so the string makes an initial angle with the vertical of 12.5o. The mass is then released with initial speed of 2.10m/s upward and perpendicular to the rop..
An intergalactic rock star bangs his drum every 1.52 s. A person on earth measures that time between beats is 2.10 s. How fast is the rock star moving relative to the earth.
find out the magnitude of an acceleration
A 2.30-? F capacitor is fully charged by being connected to a 6.0-V battery. The fully charged capacitor is then connected to a 0.250-H inductor.
How much farther from the tower does the cannonball from the higher cannon land than cannonball from the lower cannon.
If the football has the mass of .420 kg and the time of contact with the ball is .014 s, what is the force exerted by the ball on a kicker's foot.
Assume that ABC Firm has an optimal capital structure; comprised of debt, preferred stock and common equity. In this scenario, Firm currently has 48 percent debt, 4 percent preferred stock and 57 percent common equity in its capital structure.
A 5.2 x10^2-newton girl takes 10. Seconds to run up two flights of stairs to a landing, a total of 5.0 meters vertically above her starting point. What power does the girl develop during her run.
A sanding disk with rotational inertia 2.4 10-3 kg•m2 is attached to an electric drill whose motor delivers a torque of 8 N•m about the central axis of the disk. What are the following values about the central axis at the instant the torque has been ..
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