A proton moving in a uniform magnetic field with v⃗ 1=1.16×106ı^m/s experiences force F⃗ 1=1.61×10−16k^N. A second proton with v⃗ 2=2.26×106ȷ^m/s experiences F⃗ 2=−3.86×10−16k^N in the same field. A. What is the magnitude of B⃗ ?B. What is the direction of B⃗ ? Give your answer as an angle measured ccw from the +x-axis

Explain the consequences of this addiction to the brain tissue

An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?

City b is south of city a, and the 200 mile trip by car takes 4 hours. the cities are 120 miles apart in a straight line. what is the velocity of a trip from city a to city b?