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A +200μC is place at the origin and a -300μC is placed on 1m to the right of it. What is the magnitude and direction of the electric field midway between the 2 charges and 30 cm to the right of the negative charge?
Sphere A, with a charge of +6.0 𝜇𝐶, is located near another charged sphere, B. Sphere B has a charge of −3.0 𝜇𝐶and is located 4.0 cm to the right of A.
What is the force of sphere B on sphere A?
A third sphere, C with a +1.5 𝜇𝐶charge, is added to the configuration. If it is located 3.0 cm directly beneath A, what is the new net force on sphere A?
. A driver notices an upcoming speed limit change from 45 mi/h (20 m/s) to 25 mi/h (11 m/s). If she estimates the speed limit will change in 50 m, what acceleration is needed to reach the new speed limit before it begins?
From ear level down the wishing well, a coin is dropped by Liza. The coin falls a distance of 7.00 m before it strikes the water. If the speed of sound is 343 m/s, how long after Liza releases the coin will she hear a splash?
A bird can fly 25 km/h. How long does it take to fly 3.5 km?
How can you distinguish a raw egg from a hard-boiled one by spinning each one on a table?
The power of the heater is 2.4W. 1. Calculate how long it takes for the heater to supply the energy calculated in (a)(i).
Barney walks at a velocity of 1.7 meters/second on an inclined plane, which has an angle of 18.5° with the ground. What is the horizontal component of Barney’s velocity?
Two bodies of masses 10kg and 4kg are moving in opposite directions with the same velocity of 5 meter per seconds .if they collide and stick together after the impact,calculate their velocity
- Salim has a paper route. In the winter time, he puts his newspapers on a toboggan to pull them through the snow. The combined mass of the papers and the toboggan is 24 kg. The coefficient of static friction between the toboggan and the snow is 0.18. The coefficient of kinetic friction between the toboggan and the snow is 0.10.
- With how much force must Salim pull in order to get the toboggan to start moving?
- How much force is needed to keep the toboggan moving at a constant speed?
