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Mars has a mass of 6.4*10^23 kg and radius of 3,400,000 m.
A) how much will 14kg pumpkin wight on Mars? ( hint G= 6.6*10^-11 nm^2/kg^2)
B) find the acceleration due to the gravity on Mars.
A baseball (m = 148 g) approaches a bat horizontally at a speed of 41.5 m/s (93 mi/h) and is hit straight back at a speed of 45.9 m/s (103 mi/h).
A lens which is 40.0 cm from an object forms an image of the object on a card 20.0 cm away. Determine what is the focal length of the lens? If the height of the image is .75 cm, what is the height of the object?
An air-track glider attached to a spring oscillates between the 15 {rm cm} marks and the 57 {rm cm} mark on the track. The glider completes 10 oscillations in 32 {rm s}.
Which of the planets fits the following description: "a solid, cool surface, with occasional dust clouds and a thin CO2 atmosphere".
Two blocks with masses, 2.5kg and 3.5kg, rest on a frictionless surface and are connected by a light string, What is the magnitude of the force in the string
How high above the ground will the ball be when it gets to Julie? (note, the ball may go over Julie's head.) 7) Below is some space to write notes on this problem.
A 7.5 nC charge is located 1.8m from a 4.2 nC charge. Find out the magnitude of the electrostatic force that one charge exerts on the other. Is the force attractive or repulsive.
A 1.6kg , 20-cm-diameter turntable rotates at 50rpm on frictionless bearings. What is the turntable's angular velocity, in rpm, just after this event
what is the rate of heat transfer from the plate to the air? If the free stream velocity if the air is doubled and the pressure are increased to 10 atm, what is the rate of heat transfer.
A 30.0-kg block is resting on a flat horizontal table. On top of this block is resting a 15.0-kg block, to which a horizontal spring is attached. determine the amount by which the spring is compressed
A thin film of water sits on top of a flat piece of glass, and light is incident from below, what is the angle of refraction of the final outgoing ray
A 34 kg child on a swing 6,9 meters long is released from rest when the swing supports make an angle of 38,9 degrees with the vertical. Neglecting friction, find out the child's speed (m/s) at the lowest position to two decimal places. Use 9,8 m/s..
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