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A box of mass 29.7 kg slides down an inclined plane without friction. If the acceleration, a, of the box along the direction ofthe plane is 4.1 m/s2, what is the angle q (in degrees) of the plane with respect to the horizontal?
The pluto atmosphere has carbon monoxide in it. CO has a rotational constant of 1.73 cm-1. What is the temperature of the Pluto atmosphere
An engineer is designing a runway for a new airport. Of the planes which will use the airport, the lowest acceleration rate will be 3 m/s2. Assuming the minimum acceleration, what is the minimum allowed length for the runway
A quarterback takes the ball from the line of scrimmage, runs backwards for 7.0 yards, then runs sideways parallel to the line of scrimmage for 19.0 yards. What is the magnitude of the football's resultant displacement
the position of a cart that is oscillating on a spring is given by the equation x= 12.3 cm cos [(1.26 s-1)t], velocity and acceleration of the cart
A 5.00-g lead bullet traveling at 300 m/s is stopped by a large tree. If half the kinetic energy of the bullet is transformed into internal energy and remains with the bullet while the other half is transmitted to the tree, what is the increase in te..
The fastest land animal is the cheetah, which runs at a constant speed of 101 km/hr. The second fastest is the antelope, How far will the cheetah have travelled by this time
At what angle to the surface must a submerged diver in the lake look toward the surface to see the setting sun just along horizon.
A train with a total mass of 2.4 × 10^6 kg rises 715 m while traveling a distance of 64 km at an average speed of 12 km/h. Find power output of the train's engines
Harry Potter (55kg) is riding his broom north when a Slytherin casts a spell to knock him from the broom. what is Harry's velocity
A positively charged light metal ball is suspended between two oppositely charged metal plates on an insulating thread as shown below. After being charged once, plates are disconnected from the battery. define the behavior of the ball.
A box contains about 5.0 ? 1021 hydrogen atoms at room temperature (21°C). Determine the thermal energy of these atoms
Dinah is playing cards with her friends and it is her turn to deal. A card has a mass of 2.3 g and it slides 0.35 m along the table before it stops. If the coefficient of kinetic friction between the card and the table is 0.24 what was the init..
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