1. Work out (show all necessary steps)

For what value oft vector 2i + j + k is perpendicular to i - 4 + tk.

If A = i + 3k, and B = 2 + 3k then what is the value of AxB?

Factfile about eclips

804 n of force are applied to a 51.7 kg. What is the acceleration that the object experiences?

A worker uses a cart to move a load of bricks weighing 680 N a distance of 10 m across a parking lot. If the worker pushes the cart with a constant force of 209 N, what amount of work does he do?

When the time of day for a certain ship at sea is 12 noon, the time of day at the prime meridian (0 longitude0 is 5 pm.

Salina's internal desire to exercise is called 1. positive thinking 2. motivation 3. a goal

Consider a helium balloon on a string tied to the seat of your stationary car. The windows are closed, so there is no air motion within the car. The car begins to accelerate forward. Which way will the balloon lean, forward or backward

The force of gravity acts upon meteors from the rocky asteroid belt between mars and Jupiter. Where is the force of gravity most likely to pull these meteors

Sally turns on her cellular telephone to speak to her friend who is located thousands of miles away. Which of the following best describes how such a telephone is able to transmit and receive information? A.

Calculate the gravitational potential energy relative to the ground when an 82 kg person climbs to the top of a 2.0 m stepladder.

A rock is thrown from a cliff and hits the ground five seconds later at a distance of 50 m from the cliff how high was a cliff