Assignment Ace
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Physics
Physics
High School
Two crates are dropped from the same height in a vacuum. The mass and force of the crates are shown in the diagram. Which of the following statements is supported by the data?The momentum of both crates will be the same right before they hit the ground.The normal force will be the same on both crates when they hit the ground.Both of the crates are accelerating at the same rate.Both of the crates are falling at a constant speed.
Physics
High School
assuming that the magnetic field is uniform between the pole faces and negligible elsewhere, write an expression for the induced emf in the coil.
Physics
High School
you throw a 0.80kg snowball at 7.0m/s straight down off a 5.0m tall bridge
Physics
High School
Patients with anterograde amnesia were taught to solve the Tower of Hanoi problem. It was later found that they _________.a. remembered solving the problem and could do so againb. didn't remember the problem and couldn't solve itc. remembered solving the problem but couldn't do it againd. didn't remember solving the problem but could do it again
Physics
High School
how does radio waves change with respect to their position to the event horizon
Physics
High School
explain why adding charge to a bee causes hairs on the bee's body to bend more in response to a field.
Physics
High School
which of the following is not an example of mechanical action? group of answer choices electrically charged beaters of the bells on the clavecin electrique digital sampling machines levers and hammers inside an acoustic piano rotors (tonewheels) of a telharmonium
Physics
High School
A load of 100g placed on a spiral spring, A extends it spring by 2cm when the same load is placed on spiral spring, B it extends it by 5cm, which spring has smaller stiffness
Physics
High School
A lamp in child's Halloween costume flashes based on an RC discharge of a capacitor through its resistance. The effective duration of the flash is 0.250 s, during which it produces an average 0.500 W from an average 3.00 V. A) What energy does it dissipate? B) How much charge moves through the lamp? C) Find capacitance. D) What is the resistance of the lamp?
Physics
High School
The trachea is found ______ to the esophagus; connects the larynx to primary bronchi; inferiorly the trachea divides into right and left ______ ______.
Physics
High School
a semi-circular gate on an inclined wall is in contact with water. calculate the resultant force of the water on the gate
Physics
High School
kim holds a 2.0 kg air rifle loosely and fires a bullet of mass 1.0 g. the muzzle velocity of the bullet is 150 m/s. calculate the recoil speed of the rifle.
Physics
High School
if each charge has two field lines per unit of charge (q), what is the ratio of the total positive (red) charge to the total negative (blue) charge?
Physics
High School
a system releases 690 kj of heat and does 110 kj of work on the surroundings. part a what is the change in internal energy of the system?
Physics
High School
Which are true about Halogens? (please choose all that apply)a) Reactiveb) Group 7Ac) Non-metalsd) Metalse) Non-reactive
Physics
High School
Question about my assignment
Physics
High School
ay telescope mirrors are arranged in a way very similar to optical telescope mirrors. group of answer choices true false
Physics
High School
true or false: electrically neutral objects have no positive or negative charges, that is why they are neutral
Physics
High School
a portable cd player uses a current of 7.5 ma at a potential diference of 3.5 v. how much energy does the player use in 35 s?
Physics
High School
g what is the expected acceleration of the cart if its mass is 220 g and two masses of 250 g each are added to it. a mass of 60 g is placed in the mass hanger of 5 g.
Physics
High School
2. how would an atmosphere of helium effect the pitch of an organ pipe? how would it effect the pitch of a turning fork? explain. g
Physics
High School
a 70.0-g arrow, fired at a speed of 115 m/s to the left, impacts a tree, which it penetrates to a depth of 12.2 cm before coming to a stop. assuming the force of friction exerted by the tree is constant, what are the magnitude and direction of the friction force acting on the arrow?
Physics
High School
what is the maximum speed with which a 1500 kg car can make a turn around a curve of a radius 20 m. on a level. road without sliding.
Physics
High School
suppose you have an atwood machine with two different masses m and m. what are the external forces acting on this system?
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